Alaska Airlines and LATAM Formally Dissolve Codeshare Partnership

SEATTLE, WA – Marking the end of an era in Pan-American aviation, Alaska Airlines has officially terminated its nearly decade-old codeshare and loyalty partnership with LATAM Airlines Group. The split, finalised in a formal filing to the U.S. Department of Transportation (DOT) on December 29, 2025, follows a phased winding down of reciprocal benefits that began earlier in the autumn.

The dissolution concludes a relationship that began in April 2016, which once provided Alaska Airlines with a vital foothold in the South American market. Industry analysts cite the 2020 entry of Delta Air Lines as a major shareholder in LATAM, combined with Alaska’s 2021 integration into the oneworld alliance, as the primary catalyst for the divorce.

The Strategic Shift

The termination coincides with a massive overhaul of Alaska’s loyalty ecosystem. The carrier recently rebranded its famed Mileage Plan to Atmos Rewards, a unified loyalty initiative launched in collaboration with Hawaiian Airlines.

"While we value the history we shared with LATAM, our strategic focus has shifted toward deeper integration within the oneworld alliance and targeted partnerships that align with our West Coast hub strengths," an Alaska Air Group spokesperson stated.

As of October 1, 2025, reciprocal point redemptions between the two carriers have ceased. Travellers should note the following critical deadlines for points earning:

Bookings made before August 31, 2025: Will earn Atmos Rewards points regardless of the travel date.

Bookings made in September 2025: Will earn points only if travel is completed by December 31, 2025.

New Bookings (Post-Oct 1, 2025): No longer eligible for reciprocal mileage accrual.

A New International Horizon

To fill the void left by the LATAM departure, Alaska is aggressively expanding its "Global Partner" network, moving away from South American connectivity toward Transatlantic and Transpacific corridors. The airline has recently solidified ties with Starlux Airlines (Taiwan) and Icelandair, ensuring that Seattle-based travellers maintain global reach through different gateways.

As part of this "New Frontier" strategy, Alaska has announced its own long-haul metal expansion, including a highly anticipated non-stop service to the North Atlantic.

New Air Operations & Strategic Routes (2026)

Following the pivot away from the LATAM codeshare, Alaska is prioritising its own international long-haul expansion and new partner-supported routes. The following table highlights the flagship "post-LATAM" operations commencing in 2026.

Note: Flights marked with (*) represent Starlux Airlines partner operations newly integrated into the Atmos Rewards booking engine as primary alternatives to previous southern codeshares. All times are local.

Impact on Travellers

While the codeshare has ended, a basic interline agreement remains in place. This means passengers can still book single-ticket journeys involving both Alaska and LATAM for the purpose of baggage transfer, but they will no longer enjoy "seamless" check-in, reciprocal lounge access, or the ability to earn elite-qualifying miles across the two networks.

For those seeking to travel to South America, Alaska Airlines now points its Atmos Rewards members toward oneworld partners American Airlines and British Airways as the primary conduits for regional redemptions.