# Alaska Airlines Launches Nonstop London Heathrow to Seattle Service

_May 22 15:07_

Tags: Alaska Airlines, American Airlines, British Airways, Cathay Pacific, Finnair, JAL, Japan Airlines, Qantas, Royal Jordanian, SriLankan Airlines

Alaska Airlines has launched new nonstop service between London Heathrow (LHR) and Seattle (SEA), effective May 22, 2026. This adds Alaska to the oneworld alliance's presence at LHR, operating out of Terminal 3

## Summary

Alaska Airlines officially launched its new nonstop route between London Heathrow (LHR) and Seattle (SEA) on Friday, May 22, 2026. This service expansion brings the total number of oneworld alliance member airlines operating at London Heathrow to 14. Alaska Airlines flights operate out of Terminal 3 at Heathrow, alongside other oneworld partners including American Airlines, British Airways, Cathay Pacific, Finnair, Japan Airlines, Qantas, Royal Jordanian, and SriLankan Airlines. The launch strengthens the alliance's hub presence at LHR, offering passengers increased connectivity to over 160 destinations globally. The route allows Alaska Mile Plan members to earn and redeem miles on this transatlantic sector, while also providing access to partner lounges within Terminal 3 for eligible passengers

## Why it matters

Affects 17 airline programs (Alaska Airlines, American Airlines, British Airways...). New route or product — useful for award booking and positioning flights.

## Sources cited

- [LoyaltyLobby](https://loyaltylobby.com/2026/05/22/alaska-airlines-joins-13-other-oneworld-airlines-at-london-heathrow-lhr-airport?omhide=true) — Alaska Airlines Joins 13 Other Oneworld Airlines At London Heathrow (LHR) Airport

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