Alaska Airlines has launched a new Seattle route from Heathrow, bringing the number of Oneworld member airlines serving London's hub to 14. Oneworld has strengthened its position at London Heathrow following the launch of Alaska Airlines' new nonstop service between London and Seattle, increasing the alliance's presence at the airport to 14 member carriers. The new route began operating on May 22, 2026, marking Alaska Airlines' latest internatio…
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