$549 Cheap Asiana Airlines flights Seoul (ICN) to Seattle (SEA)

View $549 flight on Wed, Nov 12, 2025Opens in a new window

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$549 Cheap Asiana Airlines flights Seoul (ICN) to Seattle (SEA)

Prices were available within the past 7 days and start at $549 for one-way flights and $558 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Sun, Oct 5 - Sun, Oct 19
ICN
Seoul
SEA
Seattle
$558 Roundtrip, just found
$558
Roundtrip
just found
Select Asiana Airlines flight, departing Sun, Oct 5 from Seoul to Seattle, returning Sun, Oct 19, priced at $558 just found
Flights from Seoul (ICN) to Seattle (SEA)
Origin airport
Incheon Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air China, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Hawaiian Airlines, Japan Airlines, Korean Air, Philippine Airlines, United, WestJet
Popular airline
Asiana Airlines
Distance
5203 mi
Average flight time
-5 hours -35 mins

Frequently asked questions

How much is an Asiana Airlines flight from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA)?
Apply the "Price (lowest to highest)" filter on Expedia to find cheap Asiana Airlines return flights from $558 from ICN to SEA. Affordable one-way options from $549 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.
What is the cheapest month to fly from ICN to SEA with Asiana Airlines?
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.
What is the cheapest time to book flights from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA) with Asiana Airlines?
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.
Does Asiana Airlines fly nonstop from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA)?
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.
How long does it take to fly from ICN to SEA with Asiana Airlines?
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.
What is the earliest Asiana Airlines flight from ICN to SEA?
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.
What airports does Asiana Airlines fly into in Seattle?
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.
What kind of luggage can I take on an Asiana Airlines flight from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA)?
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.
Why fly with Asiana Airlines from ICN to SEA?
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.
What type of plane does Asiana Airlines fly from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA)?
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.
Can I change or cancel my Asiana Airlines flight from Incheon Intl. Airport (ICN) to Seattle - Tacoma Intl. Airport (SEA)?
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.
*Available to One Key members.