However, competition in Seattle’s international market has increased as Alaska Airlines continues to develop the city as a long-haul hub following its acquisition of Hawaiian Airlines. It wasted little time after the acquisition and launched its first long-haul international service from Seattle to Tokyo Narita in May 2025. At present, the two airlines compete directly on four of Alaska’s long-haul routes from Seattle: Tokyo Narita, London, Seoul and Rome. Alaska Dominates Seattle Overall, But Delta Leads Long-Haul FlyingIndeed, the competition between Delta and Alaska in Seattle has become one of the most interesting airline battles in the US. This year, Delta is scheduled to offer around 1.63 million seats on long-haul nonstop routes from Seattle, compared with around 541,000 seats from Alaska.