$432 Cheap Asiana Airlines flights Seattle (SEA) to Seoul (ICN)

View $432 flight on Wed, Sep 24, 2025Opens in a new window

$432 Cheap Asiana Airlines flights Seattle (SEA) to Seoul (ICN)

Prices were available within the past 7 days and start at $432 for one-way flights and $841 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Wed, Sep 24 - Tue, Sep 30
SEA
Seattle
ICN
Seoul
$841 Roundtrip, just found
$841
Roundtrip
just found
Select Asiana Airlines flight, departing Wed, Sep 24 from Seattle to Seoul, returning Tue, Sep 30, priced at $841 just found
Flights from Seattle (SEA) to Seoul (ICN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Incheon 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, Korean Air, Philippine Airlines, Singapore Airlines, Turkish Airlines, United, WestJet
Popular airline
Air Canada
Distance
5203 mi
Average flight time
27 hours 26 mins

Frequently asked questions

How much is an Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
You'll discover cheap round-trip Asiana Airlines flights from $841 from SEA to ICN by organizing your results from "Price (lowest to highest)" on Expedia. Or look for options from $432 for a one-way journey.**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 SEA to ICN with Asiana Airlines?
Asiana Airlines flights to Seoul are usually cheaper in the quieter months of January and February. Whether you're searching for a one-way or round-trip ticket, you could land a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN) with Asiana Airlines?
To get cheap flights from SEA to ICN with Asiana Airlines, begin searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**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 Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
Hop on one of Asiana Airlines's 7 direct weekly flights from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN). To see your choices, enter your origin, destination and dates and hit search. Then apply the "Nonstop" and "Airline" filters.
How long does it take to fly from SEA to ICN with Asiana Airlines?
On average, it takes 12h 5m to fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN) with Asiana Airlines.
What is the earliest Asiana Airlines flight from SEA to ICN?
The first Asiana Airlines flight from SEA to ICN departs at 12:45PM UTC-8, touching down at 5:50PM UTC+9. If you'd like to head off later in the day, the last Asiana Airlines flight leaves SEA at 12:45PM UTC-8 and lands at ICN at 5:50PM UTC+9. Flying early is often a smart option as morning and mid-morning flights are 20% 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 Seoul?
Incheon Intl. Airport (ICN) is the main Seoul gateway for Asiana Airlines flights from Seattle - Tacoma Intl. Airport (SEA).
What kind of luggage can I take on an Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
For checked luggage, passengers can take 2 checked-in bags weighing up to 50 lb with dimensions not exceeding 62 inches. You can also travel with 1 cabin bag in the cabin when flying standard economy from SEA to ICN with Asiana Airlines. This carry-on should weigh less than 22 lb and be no bigger than 21 inches x 15 inches x 7 inches. Going above these limits can mean extra charges, so read Asiana Airlines's baggage allowance policies before packing your suitcase.
Why fly with Asiana Airlines from SEA to ICN?
With a rewarding loyalty program and top-tier customer service, Asiana Airlines is a favorite for many travelers flying from SEA to ICN. What's more, if you're an Asiana Club and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel.*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 Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
You'll likely board an Airbus A350-900 or a Boeing 777-200LR when flying Asiana Airlines from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN). However, keep in mind that a different plane could be assigned to your route due to operational demands.
Can I change or cancel my Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
It's usually possible to reschedule or cancel your flight, although there may be additional charges if you booked over 24 hours ago. Need to keep your options open? Use Expedia's "Changes included" or "No cancel fee" filter to find flights that won't charge extra if you have to alter your plans. To make changes, visit "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.