United Airlines Destinations from SEA
Frequent Flyer Program
MileagePlus
Earn miles when flying United Airlines. As a Star Alliance member, you can also earn and redeem miles on partner airlines.
Tips for United Airlines Passengers
United Airlines serves SEA with select routes from Seattle. Arrive at least 2 hours before domestic and 3 hours before international departures for check-in. As a Star Alliance member, United Airlines offers seamless connections with partner carriers including Lufthansa, United, ANA, and Singapore Airlines. Online check-in is available through the United Airlines website or app, typically opening 24-48 hours before departure.
Contact
United Airlines at Other Airports
Frequently Asked Questions
What alliance is United Airlines part of?
United Airlines is a member of the Star Alliance alliance.
What is United Airlines's frequent flyer program?
United Airlines's frequent flyer program is MileagePlus. Earn miles when flying United Airlines and partner airlines in the Star Alliance alliance.
How many destinations does United Airlines fly to from SEA?
United Airlines operates flights to 7+ destinations from Seattle-Tacoma International Airport (SEA). Popular routes include DEN.
Is SEA a hub for United Airlines?
Seattle-Tacoma International Airport (SEA) is not a hub for United Airlines, but the airline operates regular flights from this airport.