The bottom line: LAX-SCL is the dominant premium gateway from the US West Coast into the Southern Cone, with LATAM operating the daily backbone and American operating a complementary daily that picks up a seasonal 777-300ER rotation during the Southern Hemisphere summer. The LATAM 787-9 Premium Business is the better hard product on most days. The AA Flagship Business 777-300ER is the better hard product when it's running. The redemption math is asymmetric: AAdvantage miles on LATAM metal is the single best premium-cabin value on the route, and SkyMiles via the Delta-LATAM JV is the second-best.

The Los Angeles to Santiago de Chile premium corridor is one of the longest scheduled wide-body business-class routes between the United States and Latin America. Block time runs roughly ten hours and forty-five minutes southbound and ten hours and twenty minutes northbound, with the route covering the full length of the Pacific coast of the Americas before crossing into Chilean airspace on final descent into the Andes-flanked Santiago basin. It is the dominant gateway from the US West Coast into the Southern Cone, the operational anchor of the LATAM long-haul network into the Pacific corridor, and the structural test case for what happens when the largest South American carrier operates a daily wide-body service into one of the most competitive Star Alliance and oneworld hub airports in the Western Hemisphere.

It is also a route where the hardware comparison and the redemption math diverge in unusually instructive ways — and where the post-2016 unwinding of the original American-LATAM Joint Business has left a competitive structure that produces some of the most underrated premium award availability in the Americas long-haul map.

This is the long version of the analysis.

Quick Answer

LAX-SCL is operated daily by LATAM Airlines and daily by American Airlines, with both carriers running the route as an overnight southbound departure and an evening northbound. LATAM flies the 787-9 in a 30-seat Premium Business configuration; American flies the 787-9 in a 20-seat Flagship Business configuration year-round with a seasonal 777-300ER rotation deployed during the Southern Hemisphere summer peak. Block time is ten hours forty-five minutes southbound and ten hours twenty minutes northbound. LATAM departures use LAX Tom Bradley International Terminal — TBIT, formally Terminal B — directly. American departures use Terminal 4 with the TBIT connector available for international through-connections from the AA domestic network. Both carriers arrive at SCL Arturo Merino Benítez Airport’s international terminal, formally designated Terminal 2.

Our verdict, in summary: the LATAM 787-9 service is the better experience on most days, at. The AA 787-9 service is competitive but a notch behind, at. The AA seasonal 777-300ER service — when running, which is roughly mid-November through late February depending on the year’s schedule release — is the best in-cabin product on the route at, with the wider Diamond-platform seat, the larger cabin, and the better-developed AA Flagship Business catering on a route where AA has invested disproportionately in the premium uplift.

On redemption math, AAdvantage miles on LATAM-operated 787-9 metal is the highest-value premium-cabin booking on the route, with saver pricing historically in the 57,500 to 67,500 mile range one-way. SkyMiles redemptions on LATAM 787-9 via the Delta-LATAM joint venture are the second-best value at roughly 75,000 to 95,000 one-way. AAdvantage redemptions on AA’s own 787-9 metal are the third-best, with MileSAAver pricing in the 60,000 to 80,000 range and materially thinner saver availability. LATAM Pass redemptions on AA metal are the most expensive and the least available.

Route Geometry and Schedule

The LAX-SCL routing follows a southbound great-circle track that hugs the Pacific coast of Mexico and Central America before turning further offshore over the Eastern Pacific, then re-approaching the South American continent on a southeasterly course that brings the aircraft over the Atacama region of northern Chile before final descent into the Santiago basin. The reverse course northbound runs slightly further offshore on the climb out of SCL to take advantage of the southerly trade-wind component before turning north along the Pacific coast.

Block time is, as noted, roughly ten hours and forty-five minutes southbound and ten hours and twenty minutes northbound. The wind differential is meaningful — the southbound flight runs into a persistent headwind component over the Eastern Pacific during the Southern Hemisphere summer, and the northbound flight benefits from the corresponding tailwind component. The flight is long enough that both carriers operate it as a dine-and-rest overnight in both directions, with the southbound flight optimized as an evening departure for working dinner service and overnight rest, and the northbound flight optimized as a late evening departure for a shorter dinner service and a longer overnight rest with breakfast on arrival into LAX.

The schedule pattern in 2026 is roughly as follows. LATAM operates LA800 LAX-SCL departing LAX in the 22:55 hour and arriving SCL the following day at approximately 10:15 local, and LA801 SCL-LAX departing SCL at approximately 22:45 and arriving LAX at approximately 06:30 the following day. American operates AA945 LAX-SCL with a roughly 22:45 LAX departure and a 10:00 SCL arrival, and AA946 SCL-LAX departing SCL at roughly 22:25 and arriving LAX at approximately 06:00 the following day. Schedule blocks shift quarter by quarter with the Northern and Southern Hemisphere summer rotations, but the overnight-overnight pattern is structural and has not changed materially over the past five years.

The seasonal 777-300ER deployment on American typically takes over the AA945/AA946 rotation during the period from mid-November through late February, swapping the 787-9 frame for the longer-range 777 during the period of highest premium-cabin demand. The swap is announced six to eight weeks in advance through the AA published schedule and is generally a reliable signal of which days will operate on the heavier metal.

LATAM Premium Business on the 787-9: The Cabin

LATAM’s 787-9 fleet is configured with 30 Premium Business seats in the forward cabin, arranged in a 1-2-1 reverse herringbone layout using the Thompson Vantage XL seat platform. The cabin spans roughly seven rows, with the bulkhead row offering the deepest footwell volume and the rear row of the cabin slightly compromised by adjacency to the lavatory and galley complex behind the cabin partition.

Seat pitch is approximately 44 inches, with seat width in the seated position of 21 inches widening to 24 inches at the shoulder. The fully flat bed extends to approximately 76 inches in length. The seat-back in-flight entertainment screen is 18 inches, supports Bluetooth audio pairing post-refresh, and runs a Panasonic eX3 system with a substantially refreshed content library that now includes meaningful Brazilian and Spanish-language programming alongside the standard Hollywood and European catalog.

The reverse herringbone geometry means each seat faces outward toward the window or, in the center pair, toward each other across a movable privacy divider. The center pair is the strongest seat in the cabin for couples traveling together; the window seats are the strongest for solo business travelers seeking maximum privacy. There is no sliding suite door on the LATAM Vantage XL platform — a deliberate choice during the post-Chapter 11 refresh, since adding doors to the platform requires structural modification that the Group evaluated and chose not to fund in its capital plan.

Storage is competent. A dedicated overhead-shoulder stowage volume accommodates a slim laptop bag, a side console fits headphones and a tablet, and a small additional bin under the IFE screen holds the amenity kit and water bottle. The seat-side power outlets include a universal AC socket, two USB-A ports, and a USB-C port added during the 2024 refresh — a detail that matters more than it should for working business travelers on a ten-hour-plus rotation.

The catering on the LAX-SCL routing follows LATAM’s chef-led program, which is anchored by Brazilian and Chilean culinary direction with a meaningful Californian and Pacific Northwest contribution to the wine list given the gateway. Pre-arrival breakfast service on the southbound flight is structurally weak on most South American carriers and has been a long-standing point of criticism on LATAM; the post-refresh program has substantially improved this, with the breakfast service now including a proper hot option, fresh fruit, and a competent espresso drink offering before descent into Santiago.

The amenity kit is a competently specified Brazilian-design soft pouch containing a dental kit, eye mask, ear plugs, lip balm, hand cream, and slipper-socks. The bedding is well-specified — a proper mattress pad, a duvet, and a memory-foam pillow — and is now consistent across the operating fleet. The crew, on the LAX-SCL rotation, is staffed out of the LATAM Santiago crew base, and the in-flight service standard on the route has historically been among the strongest in the LATAM network because the rotation is high-prestige within the airline’s own crew bidding system.

American Flagship Business: 787-9 and Seasonal 777-300ER

American Airlines operates LAX-SCL on the Boeing 787-9 year-round, with the seasonal 777-300ER deployment running during the Southern Hemisphere summer peak. The two configurations are meaningfully different.

The AA 787-9 is configured with 20 Flagship Business seats in a 1-2-1 reverse herringbone layout using the B/E Aerospace Super Diamond seat platform. The seat is a generation older than the LATAM Vantage XL — first introduced on American long-haul aircraft in 2013 and refreshed only incrementally since — and the cabin density is lower than LATAM’s 787 fleet, with 20 seats versus 30 in similar cabin volume. The lower density produces a quieter cabin and a slightly more spacious feel, but the older platform shows in detail: the seat-side storage is less generous, the IFE screen is smaller at 15.4 inches, and the seat-side power configuration lacks the USB-C addition that LATAM rolled into its refresh.

The bed is competitive — roughly 78 inches in length and 22 inches wide — and the cabin has aged better than the equivalent United Polaris 787 fleet, in our assessment. The catering on the AA 787-9 LAX-SCL service has been the subject of consistent criticism in the past three years and is, in our view, the single biggest weakness of the AA service relative to the LATAM service.

The seasonal AA 777-300ER deployment is a fundamentally different cabin experience. The 777-300ER is configured with 52 Flagship Business seats in a 1-2-1 B/E Diamond layout that is wider and more storage-rich than the Super Diamond on the 787-9 — seat width is 22 inches widening to 25 at the shoulder, bed length is approximately 80 inches, and the seat-side storage volume is meaningfully greater. The cabin includes a small Flagship First section forward — eight seats in a 1-1-1 configuration on the longer-haul 777s in the AA fleet, though the LAX-SCL deployment generally operates the 777 in a Flagship Business-only configuration with the First section blocked for operational reasons. Catering on the 777 service is materially stronger than on the 787 service, in part because the heavier metal carries the catering uplift that supports the multi-course service standard, and in part because the 777 crew complement is larger and the service pacing is correspondingly better.

When the 777 is running — and only when it is running — the AA LAX-SCL service is the best in-cabin product on the route. The hardware advantage over LATAM’s 787 is real, the catering gap closes substantially, and the Flagship Business soft product is at its strongest on the heavy long-haul rotations. For travelers with date flexibility and a preference for the larger metal, the seasonal 777 deployment is worth deliberately targeting.

LAX Departure: TBIT for LATAM, Terminal 4 for American

The two carriers use different terminal departures at LAX, which is a structurally important detail for connecting passengers.

LATAM operates LAX-SCL out of Tom Bradley International Terminal — formally Terminal B, but always referred to as TBIT in operational shorthand. TBIT is the principal international terminal at LAX and houses the bulk of Star Alliance and oneworld international operations, along with LATAM’s own check-in and lounge access. LATAM Premium Business passengers check in at the dedicated LATAM premium counters at the south end of the TBIT departures hall, with priority security screening through the TSA precheck lanes and Premium Business lounge access in the Star Alliance Lounge — LATAM is not in any alliance but contracts lounge access through the Star Alliance facility on the TBIT mezzanine. The lounge is functional but unremarkable: it is the same facility used by United Polaris on its LAX-Pacific rotations and by the bulk of the Star carriers at LAX, and the catering and crowding patterns reflect the multi-tenant operating model.

American operates LAX-SCL out of Terminal 4, which is the AA hub terminal at LAX and houses the bulk of the AA domestic and Latin America operation along with select transpacific rotations. The Flagship Lounge at LAX Terminal 4 is among the better US-carrier lounges in the LAX system — a meaningfully better facility than the Star Alliance Lounge on the TBIT mezzanine, with proper hot food, a wine list, and a quieter premium cabin section reserved for Flagship Business and Flagship First passengers connecting from the AA domestic network. The Flagship Lounge access is the principal soft-product advantage of choosing AA over LATAM on the LAX departure, and for business travelers with elite status who can use the Flagship First section, the gap widens further.

The TBIT-to-T4 connector is the operational backbone for international through-connections at LAX. The connector — formally the Terminal 4 to TBIT secure walkway — runs airside between the two terminals and allows AA-marketed passengers connecting from the AA domestic network onto LATAM-operated international segments, or vice versa, to transit without re-clearing security. The connector is meaningful for LAX-SCL because it allows the AA domestic feed from the AA western hub network to connect onto LATAM-operated metal for passengers booked on AA marketing codes with LATAM operating, and it allows LATAM-marketed passengers connecting from US domestic on AA to transit airside.

In practical terms, both carriers offer roughly equivalent connection economics from the AA domestic network into LAX. The lounge experience is better on AA. The cabin product is better on LATAM on most days. The terminal architecture is one of the variables that drives the booking decision more than it should.

SCL Arrival: Arturo Merino Benítez Terminal 2

Both LATAM and American arrive into Santiago at Arturo Merino Benítez International Airport — formally Aeropuerto Internacional Comodoro Arturo Merino Benítez, IATA code SCL, ICAO SCEL — which is the principal international gateway for Chile and the operational hub for LATAM’s Santiago-based long-haul operation. The arrival experience uses Terminal 2, which is the new international terminal opened in stages between 2020 and 2022 and which has substantially upgraded the SCL arrival flow relative to the pre-expansion Terminal 1 facility.

Arriving in the morning from either flight, passengers deplane at the international piers in Terminal 2, follow signage to the Chilean immigration hall, and clear immigration through a combination of e-gate facilities for participating nationalities — Chile is part of the broader Latin American e-gate framework that admits US, Canadian, and EU nationals through automated processing — and staffed immigration desks for passengers requiring manual entry stamps. The immigration hall is the principal arrival bottleneck and the lines run heavy during the 10:00 to 11:00 local window when the LAX-SCL flights arrive in close sequence with the Miami, JFK, and São Paulo morning bank.

Baggage claim is in the standard arrivals carousel hall, with priority tagged bags from both LATAM and AA appearing on the carousels within fifteen to twenty minutes of immigration clearance on a normal operational day. Chilean customs clearance is straightforward — Chile does not require an arrival declaration form for personal travel — and the customs hall typically clears in under five minutes.

The ground transport options out of SCL Terminal 2 are well-developed by Latin American standards. The TransVip and Centropuerto shared van services operate from the arrivals curb with departures every fifteen to thirty minutes into the Las Condes, Providencia, and Vitacura business districts. The official airport taxi rank — operated by TaxiOficial and Transvip Premium — offers fixed-price taxi service into the city, with the Las Condes ride priced in the 25,000 to 35,000 Chilean peso range and the Providencia ride in the 20,000 to 30,000 range. For premium business travel, the most reliable option is a pre-arranged chauffeur transfer from one of the Santiago-based premium ground operators, which can be arranged through hotel concierge desks or directly through the operator networks. Uber operates at SCL but is regulated to a specific pickup zone outside the main arrivals curb and is generally slower than the official airport taxi rank during the morning arrival peak.

For travelers connecting onward to other Chilean destinations — most commonly Calama for the San Pedro de Atacama and Antofagasta business markets, Puerto Montt for the southern Patagonia gateway, or Concepción for the southern industrial market — the SCL domestic terminal is Terminal 1, connected to Terminal 2 by an enclosed walkway. Domestic connections require re-clearing security but not immigration, and the connection time on a same-airline LATAM itinerary is typically allocated at sixty to ninety minutes which is generally comfortable.

LAX-SCL versus LAX-EZE Buenos Aires: The Southern Cone Routing Decision

For travelers headed to Buenos Aires or further into the Argentine market, the choice between routing through Santiago or routing direct to Ezeiza is one of the more nuanced premium-cabin decisions in the Americas long-haul map.

There is no scheduled nonstop LAX-EZE service on a US carrier in 2026. American discontinued its direct LAX-EZE Boeing 777 service in 2014 and has not restored it, and United has never operated LAX-EZE as a scheduled route. The nonstop LAX-EZE service that exists is operated by Aerolíneas Argentinas — the Argentine flag carrier — on the Boeing 787-9 in a four-to-five-rotations-per-week pattern that varies with seasonal demand. The Aerolíneas Club Cóndor business cabin on the 787 is a competitive lie-flat product using the Stelia Solenium platform in a 1-2-1 layout, but the operational reliability of the Aerolíneas long-haul network is meaningfully below that of LATAM and American, and the catering and crew standard is a notch behind both carriers.

The most consistent premium-cabin routing to EZE from LAX is therefore the LATAM LAX-SCL flight connected onward to LATAM SCL-EZE on a same-airline itinerary. The SCL-EZE segment is short — approximately two hours block time — and operates as a wide-body shuttle on the Boeing 787 fleet during peak hours and on the Airbus A320 family during off-peak. Total elapsed time on the connecting itinerary is roughly fifteen to sixteen hours including the SCL transit, which compares against the Aerolíneas direct service at approximately twelve hours block time. The premium pickup for the SCL routing — better hardware on both segments, more reliable operational performance, better catering, and a useful rest break at SCL — comes at the cost of three to four hours of total elapsed time.

The AA LAX-MIA-EZE routing via the AA Miami hub on the 777-300ER long-haul is the third structural option. The MIA-EZE segment is operated by AA on the 777-300ER in Flagship Business and is a strong premium-cabin product, and the LAX-MIA segment is on the AA transcon equipment with a competent domestic first-class product. Total elapsed time is roughly seventeen to nineteen hours including the MIA connection, which is the longest of the three options. The redemption math on AAdvantage favors this routing for travelers booking on miles, particularly when the AA off-peak award levels are available.

Net: if Santiago is the actual destination or the Andean side of the Southern Cone is the focus, LAX-SCL on either LATAM or AA is the right answer. If Buenos Aires is the destination, the LATAM LAX-SCL-EZE routing is the most premium-cabin-consistent choice, the Aerolíneas direct is the fastest, and the AA LAX-MIA-EZE is the best redemption value on AAdvantage miles.

AAdvantage and LATAM Pass Redemption Math

The redemption economics on the LAX-SCL route are structurally unusual because the route is operated by two carriers in two different loyalty ecosystems — American Airlines in the AAdvantage and oneworld ecosystem, LATAM outside of any alliance but inside the Delta-LATAM joint venture framework — and because the AAdvantage program retained a partner-award relationship with LATAM after the unwinding of the original AA-LATAM Joint Business in 2016.

The original AA-LATAM Joint Business was approved by the US Department of Transportation in 2015, then vacated by the US Court of Appeals for the District of Columbia Circuit in 2016 after a successful challenge by the US Department of Justice and JetBlue, and never restored. The unwinding produced a commercial reset in which the codeshare-and-redemption relationship was retained but the revenue-sharing and joint pricing architecture was dismantled, and LATAM subsequently left oneworld in 2020 as part of its Chapter 11 restructuring. The result is a hybrid: AAdvantage members can redeem on LATAM-operated metal at partner award rates, but the deeper joint-business pricing and revenue-sharing structure no longer exists.

In practice, AAdvantage saver-level redemption pricing on LATAM Premium Business LAX-SCL has historically run in the 57,500 to 67,500 mile range one-way, which is meaningfully below the corresponding pricing on AAdvantage redemptions for LATAM-operated metal at the height of the original AA-LATAM Joint Business era and which has been quietly one of the better partner-award values in the AAdvantage program for the past four years. Saver availability on LATAM-operated metal is generally more generous than saver availability on AA-operated metal on the same route, in part because LATAM does not appear to manage its partner-award inventory as tightly as American manages its own inventory.

AAdvantage MileSAAver pricing on AA’s own 787-9 metal LAX-SCL runs roughly 60,000 to 80,000 miles one-way at saver pricing — when saver is available, which it frequently is not — and the AAnytime pricing on the same metal runs into the 150,000-to-200,000 range during peak demand windows. The differential between AA-own-metal and LATAM-partner-metal pricing on the same route, in the same alliance ecosystem, is the kind of structural arbitrage that defines a high-value redemption.

LATAM Pass redemptions on AA-operated metal are more expensive and less available. The reciprocal partner-award relationship runs both ways, but the LATAM Pass program prices its AA Flagship Business award redemptions at levels that are generally not competitive with the alternatives, and saver availability on AA metal in the LATAM Pass inventory is meaningfully thinner than the reverse.

The Delta-LATAM joint venture produces a SkyMiles redemption path on LATAM 787-9 metal that is the second-best structural value on the route. Saver-level SkyMiles pricing on LATAM Premium Business LAX-SCL has run in the 75,000 to 95,000 range one-way during 2024 and 2025, and the joint venture has produced unusually generous saver-level inventory on LATAM metal compared to Delta’s own transatlantic and transpacific Premium Select inventory. For travelers who hold SkyMiles rather than AAdvantage miles, the Delta partner-award path is the practical equivalent of the AAdvantage value, and the structural availability is comparable.

Net: AAdvantage on LATAM metal is the best value. SkyMiles on LATAM metal via the Delta JV is the second-best. AAdvantage on AA metal is the third-best. LATAM Pass on AA metal is the worst. The hierarchy is unusual — most premium routes have a clean alliance-loyalty pairing — but it is structurally stable and has not changed materially over the past three years.

The 2002 US-Chile Open Skies Agreement

The structural foundation for the LAX-SCL route is the 2002 US-Chile Open Skies agreement, signed in October 2002 and entered into force in February 2003. The agreement was one of the earlier Open Skies frameworks negotiated by the United States in Latin America and has remained substantively unchanged for more than two decades.

The agreement eliminates capacity caps, frequency restrictions, and route-specific government approvals between the two countries, allowing US and Chilean carriers to operate any city pair between the two countries at any frequency with any aircraft type. It also includes seventh-freedom rights for cargo operations, fifth-freedom passenger rights with some restrictions, and a code-share framework that has supported the historical AA-LATAM commercial relationship and the more recent Delta-LATAM joint venture architecture.

The practical implications for premium-cabin travelers on LAX-SCL are three.

First, the route has no regulatory constraint on capacity. LATAM and American can each scale their LAX-SCL operations in response to demand without coordinating with either government, which is the reason the seasonal 777-300ER deployment on AA can be added and withdrawn freely with the published schedule rather than requiring bilateral approval. It is also the reason LATAM was able to upgrade the route to the 787-9 during its fleet renewal cycle without seeking new operating authority.

Second, the price environment on the route is competitive. With no regulatory restriction on capacity and two carriers actively competing on the corridor — alongside the broader Delta-LATAM joint venture coordination on US-South America pricing — the fare structure on LAX-SCL is meaningfully more favorable than the price points on routes governed by older restrictive bilateral frameworks elsewhere in Latin America. Premium-cabin cash fares on LAX-SCL routinely run in the USD 3,200 to 4,800 round-trip range during normal-demand periods, which is competitive with the corresponding pricing on transatlantic premium business on the same flight distance.

Third, the route is structurally stable. Open Skies bilaterals are not unwound lightly, and the 2002 agreement has survived four US administrations, three Chilean governments, the 2008 financial crisis, the COVID-19 pandemic, and the LATAM Chapter 11 restructuring without material modification. The regulatory floor under the LAX-SCL premium operation is, by Latin American standards, unusually solid.

The LAX-LATAM Corridor: Where LAX-SCL Fits

LAX is the dominant US West Coast gateway into Latin America, with a route network that spans Mexico, Central America, the Andean region, the Southern Cone, and Brazil. The LAX-SCL route sits inside a broader LAX-LATAM corridor that includes a meaningful set of other premium-cabin operations, and understanding the corridor position helps frame the LAX-SCL booking decision.

The principal LAX-to-Brazil route is LAX-GRU São Paulo, operated by LATAM on the Boeing 787-9 in Premium Business configuration on a daily rotation. The route is the longest LATAM operates from LAX and is the connecting gateway from LAX into the LATAM Brazilian domestic network and onward to Rio de Janeiro, Brasília, Belo Horizonte, Salvador, and the broader Brazilian destination set. Block time is roughly twelve hours and thirty minutes southbound, and the 787 hardware is the same Vantage XL Premium Business configuration used on LAX-SCL.

The principal LAX-to-Argentina route, as discussed above, is the Aerolíneas Argentinas LAX-EZE direct service on the 787-9 supplemented by the LATAM LAX-SCL connecting itinerary onward to EZE. The corridor does not have a US-carrier nonstop in 2026.

The principal LAX-to-Mexico premium routes are the AA-AeroMexico LAX-MEX operations, which run multiple daily frequencies on both carriers in their respective premium cabin configurations — AA on the 737 MAX and A321T equipment in domestic first or transcon configurations, AeroMexico on the 737 MAX in Clase Premier with the regional lie-flat product on selected long rotations. The LAX-MEX route is structurally different from LAX-SCL in length and cabin specification, but the corridor positioning matters for travelers connecting through Mexico City onto AeroMexico’s broader South American operation.

The LAX-LATAM corridor as a whole has been the principal beneficiary of the post-pandemic premium-cabin demand recovery in the Americas. Capacity in the corridor has returned to pre-pandemic levels and exceeded them in several city pairs, and the LAX-SCL route specifically has been one of the strongest performers in the corridor in terms of premium-cabin load factors. The 2024 and 2025 traffic data published by the Los Angeles World Airports authority showed LAX-SCL among the top-ten growth routes by premium revenue for the airport, with the dual LATAM-AA operation producing a competitive premium cabin environment that has supported sustained capacity growth.

For the business traveler, the LAX-LATAM corridor positioning of LAX-SCL means three things. First, the route is a genuine premium-product anchor — both carriers invest in the cabin and the ground experience, and the LAX-based loyalty programs reward premium-cabin travel on the corridor. Second, the connection economics from LAX onto the broader Latin American network are well-developed in both directions — same-airline LATAM connections onto the South American network and same-airline AA connections onto the AA Miami hub network for travelers who prefer the AA system. Third, the corridor is stable: the underlying Open Skies bilateral with Chile, the more limited bilateral with Argentina, the deep Open Skies relationship with Mexico, and the longstanding AA-Brazil agreement all combine to produce a regulatory environment that supports sustained premium investment from both carriers.

Verdict

LAX-SCL is the dominant premium gateway between the US West Coast and the Southern Cone, and it is one of the better-priced long-haul business class corridors in the Americas long-haul map. The LATAM Premium Business product on the 787-9 is the structural backbone of the route; the American Flagship Business product on the 787-9 is a competitive complement; the seasonal AA 777-300ER deployment is the best in-cabin experience on the route when running. The redemption math is asymmetric in a way that favors AAdvantage holders booking partner-award redemptions on LATAM metal, and the Delta-LATAM joint venture has opened a secondary high-value path on SkyMiles for travelers in the Delta loyalty ecosystem.

The product is not the best business class in the world. LATAM Premium Business is short of Qatar Qsuite, Singapore Airlines’ 777-9 product, and the most recent Air France business class generation, and AA Flagship Business on the older Super Diamond and Diamond platforms is a generation behind the freshest competing products on the European and Pacific corridors. The catering on AA is the route’s principal soft-product weakness. The TBIT lounge access on LATAM is functional rather than excellent.

But for a traveler whose origin or destination is Santiago — or whose route into the broader Southern Cone is most efficiently anchored on the SCL gateway — LAX-SCL on either LATAM or American is the strongest available premium-cabin option, and the redemption math makes it accessible to a substantially broader audience than the cash-fare price point would suggest.

overall view:

  • LATAM Premium Business 787-9:. The strongest day-in-day-out premium product on the route, with the best catering and the most consistent crew. The single best AAdvantage partner-award value in the Americas long-haul map.
  • AA Flagship Business 787-9:. Competitive hardware, weaker catering, stronger lounge access at LAX. The most accessible MileSAAver redemption on AA-own-metal in the US-to-Southern-Cone corridor.
  • AA Flagship Business 777-300ER (seasonal):. The best in-cabin experience on the route when running. Worth deliberately targeting during the Southern Hemisphere summer peak.

The Authority view: this route is the best entry point into the Southern Cone from the US West Coast, the LATAM service is the best default booking, the AAdvantage partner-award redemption is the best loyalty play, and the seasonal AA 777-300ER is the cabin to target when the schedule supports it. The 2002 US-Chile Open Skies agreement is the regulatory floor that makes all of this structurally stable, and the LAX-LATAM corridor positioning means the operation is well-supported on both sides of the cabin and the ground.

Citations and Further Reading

  • American Airlines — Flagship Business cabin documentation, route maps, and AAdvantage award chart, aa.com
  • LATAM Airlines Group — Premium Business cabin documentation, fleet renewal coverage, and LATAM Pass partner-award framework, latam.com
  • Oneworld alliance documentation on the 2020 LATAM departure from the alliance framework, oneworld.com
  • Los Angeles World Airports — LAX terminal operations, TBIT and Terminal 4 documentation, and the Terminal 4-to-TBIT connector, lawa.org
  • Aeropuerto Internacional Comodoro Arturo Merino Benítez — SCL Terminal 2 and Terminal 1 documentation, ground transport directory, lawa.org and aeropuertosantiago.cl
  • Runway Girl Network — cabin product reviews on LATAM Premium Business 787-9 and AA Flagship Business 777-300ER, runwaygirlnetwork.com
  • View From The Wing — AAdvantage partner-award redemption analysis on LATAM-operated metal, viewfromthewing.com
  • La Tercera — Chilean business press coverage of the Santiago aviation market and the LAX-SCL corridor, latercera.com
  • Reuters — coverage of the LATAM Chapter 11 restructuring, the Delta equity investment and JV deepening, and the 2016 vacatur of the original AA-LATAM Joint Business by the US Court of Appeals for the District of Columbia Circuit, reuters.com
  • Simple Flying — fleet deployment coverage, the seasonal AA 777-300ER LAX-SCL rotation, and the broader LAX-LATAM corridor capacity coverage, simpleflying.com

Changelog

  • 2026-05-14: Initial publication. on the LATAM Premium Business 787-9 service, on the AA Flagship Business 787-9 service, and on the seasonal AA Flagship Business 777-300ER service. Coverage spans the route geometry and schedule, the LATAM and AA cabin specifications, the LAX TBIT-versus-Terminal-4 departure flow and the inter-terminal connector, the SCL Arturo Merino Benítez Terminal 2 arrival experience, the LAX-SCL versus LAX-EZE Southern Cone routing decision, the AAdvantage and LATAM Pass and SkyMiles redemption math, the 2002 US-Chile Open Skies bilateral, and the position of the route inside the broader LAX-LATAM corridor including LAX-GRU and LAX-EZE and LAX-MEX.

Frequently asked questions

Who actually operates LAX-SCL — LATAM, American, or both?
Both. LATAM operates a daily LAX-SCL rotation on the Boeing 787-9 in a 30-seat Premium Business configuration, codeshared with Delta inside the Delta-LATAM joint venture framework. American Airlines operates a separate daily LAX-SCL rotation, predominantly on the 787-9 in Flagship Business and seasonally on the 777-300ER during the Southern Hemisphere summer peak running roughly from mid-November through late February. The two carriers are not in alliance with each other — LATAM exited oneworld in 2020 — so the two daily flights operate as commercial competitors, not as coordinated capacity, with American and LATAM each running independent schedules and pricing structures on the route.
How long is the flight and what is the schedule pattern?
Block time is roughly ten hours and forty-five minutes southbound LAX to SCL and ten hours and twenty minutes northbound SCL to LAX, with the difference attributable to upper-level winds along the South Pacific routing. Both carriers fly the route as an overnight departure southbound, generally leaving LAX in the late evening between 21:30 and 23:50 local time and arriving Santiago mid-morning the following day. Northbound is an evening departure from SCL between 22:00 and 23:30 local, arriving LAX in the early-morning hours, typically between 05:30 and 07:00 local. Both carriers operate the route year-round, with American adding the 777-300ER on selected days during the Southern Hemisphere summer peak when LAX-SCL traffic compounds with the broader US-to-Chile leisure and business demand pattern.
Should I fly LATAM or American for the better business class experience?
On hardware, LATAM Premium Business on the 787-9 — Thompson Vantage XL reverse herringbone, 1-2-1, 30 seats — is the better in-cabin product than American Flagship Business on the AA 787-9, which carries 20 seats in the older B/E Aerospace Super Diamond configuration. American's seasonal 777-300ER deployment is a different conversation: the AA 777 carries 52 Flagship Business seats in a B/E Diamond 1-2-1 layout that is generally superior in seat width and storage to the LATAM 787-9 product. On soft product, LATAM's catering — the chef-led program that emphasizes Chilean and Brazilian culinary direction with Chilean and Argentine wine pairings — is meaningfully stronger on the LAX-SCL routing than the AA Flagship Business catering, which has been the subject of consistent criticism over the past three years. On lounge access at LAX, LATAM's TBIT-based ground experience uses the Star Alliance and contract lounges in the international terminal, while American's Flagship Lounge in Terminal 4 is among the better US-carrier lounges in the LAX system, with the TBIT connector providing a direct walkway between T4 and TBIT for international through-connections. Net: the LATAM service is the better experience on most days; the AA 777-300ER service when running is the best experience on the route; the AA 787-9 service is competitive but a notch behind LATAM.
What's the redemption math — AAdvantage, LATAM Pass, or SkyMiles?
AAdvantage on LATAM metal is, structurally, the best premium-cabin redemption available on the route. Following the unwinding of the original AA-LATAM Joint Business — which was vacated by a US appellate court in 2016 — and the subsequent commercial reset, AAdvantage retained a partner-award relationship with LATAM that produces saver-level Flagship Business equivalents on LATAM-operated 787-9 metal at meaningfully lower mileage cost than American's own LAX-SCL premium award inventory. LATAM Pass on AA metal is significantly more expensive and saver availability is thinner. The Delta-LATAM joint venture, finalized post-Chapter 11, produces a SkyMiles redemption on LATAM 787-9 that is the second-best value behind AAdvantage. Numerically, AAdvantage saver pricing on LATAM Premium Business has historically run in the 57,500 to 67,500 mile range one-way, against American's own MileSAAver pricing on its 787-9 service that runs 60,000 to 80,000 one-way and is materially less available. SkyMiles redemptions on LATAM run roughly 75,000 to 95,000 one-way at saver pricing when available.
Is LAX-SCL better than LAX-EZE Buenos Aires for a Southern Cone trip?
If the destination is Santiago or Patagonia, LAX-SCL is the better choice — there is no scheduled nonstop LAX-EZE service, and a connecting itinerary through GRU São Paulo or SCL itself adds four to six hours of total travel time. If the destination is Buenos Aires or further into the Argentine interior, the calculus is more nuanced. The most efficient routings to EZE from LAX in 2026 are LATAM LAX-SCL with a same-airline connection onward to EZE (total elapsed time roughly fifteen to sixteen hours including the SCL transit), Aerolíneas Argentinas LAX-EZE direct service via the Boeing 787-9 (operating four to five rotations per week depending on season), or AA LAX-MIA-EZE via the Miami hub on the 777-300ER long-haul. The connecting-through-SCL option is the most premium-cabin-consistent choice: both segments are wide-body business class on lie-flat hardware, with the SCL transit serving as a useful rest break. The direct Aerolíneas service is materially cheaper on cash fare but operates on a less consistent schedule and the Aerolíneas Club Cóndor business cabin is a notch behind both LATAM and AA on hardware quality.
What's the Chilean Open Skies agreement and why does it matter for this route?
The 2002 US-Chile Open Skies agreement is the underlying bilateral that makes the LAX-SCL premium route structurally possible. Open Skies eliminates capacity caps, frequency restrictions, and route-specific government approvals between the two countries, allowing US and Chilean carriers to operate any city pair between the two countries at any frequency with any aircraft type. Chile was one of the earliest Open Skies signatories in Latin America, and the agreement has produced sustained capacity growth on the US-Chile corridor over two decades. The practical implication for LAX-SCL is that both LATAM and American can freely scale capacity in response to demand — adding rotations, upgrading equipment to the 777-300ER during peak, or shifting departure times without government coordination. Open Skies is also the reason the route is structurally competitive on price: with no regulatory restriction on capacity, the two carriers compete openly, and the resulting fare environment is meaningfully more favorable than the price points on routes governed by older restrictive bilateral frameworks elsewhere in Latin America.