Alaska Airlines is launching nonstop flights from Seattle to Seoul starting September 12, operated by Hawaiian Airlines. Flights will run Wednesday to Sunday, arriving in Seoul before Chuseok (Korean Thanksgiving) on October 15. Return flights operate Monday to Sunday. This expansion is part of Alaska’s plan to offer 12 international nonstop routes from Seattle by 2030, with Tokyo service starting May 12. Following its merger with Hawaiian Airlines, passengers can now redeem miles across both airlines. Tickets are available now.