$639 Cheap Asiana Airlines flights Seoul (ICN) to Seattle (SEA)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap Asiana Airlines return flights from $636 from ICN to SEA. Affordable one-way options from $639 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for one-way or round-trip flights to Seattle in January or February. You could find an affordable fare with Asiana Airlines during these quieter months.

Check for Asiana Airlines flights from ICN to SEA about one month before you want to go. The most affordable time to book an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your fare class and itinerary, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Easily travel from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA) on any of Asiana Airlines’s 7 direct weekly flights. Make use of our “Nonstop” and “Airline” filters to find the Asiana Airlines flight that’ll take you to SEA at your preferred time.

Take off from Incheon Intl. Airport (ICN) for Seattle - Tacoma Intl. Airport (SEA) on a direct Asiana Airlines flight, and you’ll be airborne for about 9h 40m.

The first Asiana Airlines flight from ICN to SEA takes off at 6:15PM UTC+9, touching down at 10:55AM UTC-8. If you want to jet off later, the last Asiana Airlines flight leaves ICN at 6:15PM UTC+9 and touches down at SEA at 10:55AM UTC-8. Flying early is often a smart choice as morning and mid-morning flights are less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Get on an Asiana Airlines flight from Incheon Intl. Airport (ICN) to Seattle, and you’ll likely arrive at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s primary hub here.

Asiana Airlines allows passengers to bring 2 checked-in bags weighing up to 50 lb with maximum dimensions of 62 inches on standard economy flights from ICN to SEA. Additionally, you can bring 1 cabin bag in the cabin. This hand luggage must not exceed 21 inches x 15 inches x 7 inches and weigh no more than 22 lb. Baggage policies can vary depending on your fare type and cabin class, so check your booking or Asiana Airlines’s website to avoid any unexpected fees at the airport.

Asiana Airlines makes flying from ICN to SEA more enjoyable with top-tier customer service and a rewarding loyalty program. You could even start collecting points with Asiana Club. Remember to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Asiana Airlines generally flies Airbus A350-900 planes for flights from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA). This airline also operates the Boeing 777-200LR on this route. Remember that aircraft type can change due to operational reasons, so the plane you catch might be different when you travel.

Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that. For further information about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to adjust your plans without additional costs, apply the “No cancel fee” or “Changes included” filter when organizing your trip.