CA $571 Cheap Flights from Seattle (SEA) to Seoul (ICN)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Incheon Intl. Airport (ICN)

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Cheap flights from Seattle (SEA) to Seoul (ICN)

Prices were available within the past 7 days and start at CA $571 for one-way flights and CA $1,099 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Alaska Airlines
Delta
Asiana Airlines
Hawaiian Airlines
Korean Air
United
China Airlines
Philippine Airlines
American Airlines

Find the cheapest month to fly from Seattle (SEA) to Seoul (ICN)

September is typically the cheapest month to fly

From CA $1,069 - CA $1,557 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Seoul (SEA - ICN) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Etihad Airways, Hawaiian Airlines, Korean Air, Philippine Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines, United, WestJet
Roundtrip price
CA $1,099
Distance
8326 km
Average flight time
27 hours 26 mins

Seattle to Incheon Flights

The easy way to book your flights from Seattle to Seoul 

With Expedia, it’s simple to find and book flights to Seoul from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are Thai Airways International, Delta Air Lines, Korean Air, Asiana Airlines, United Airlines, Singapore Airlines nonstop flights to Incheon Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Seoul today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Incheon Intl., ICN 

Sort your search results by price to find great deals on your flight from Seattle to Seoul—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seoul from Seattle currently is just CA $1,099 rising to CA $1,426.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seoul  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seoul from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seoul with Expedia today.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Seoul–Incheon Intl. Airport?
If you're travelling from SEA to ICN, round-trip flights start from CA $1,099. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Seoul–Incheon Intl. Airport?
This varies between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find simple instructions on how to cancel online.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to ICN that have flexible change policies?
Select our "No change fees" filter to find flexible ticketing options for your flight from Sea-Tac Airport to ICN. This allows you to snag a low rate ahead of time and still have the freedom to make changes without any extra fees. Just keep in mind that fare differences may still apply.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN)?
To get through the 19 hours and 26 minutes flight time between Sea-Tac Airport and Incheon Airport, it's wise to have a solid plan. A laptop filled with your favourite TV shows is a good place to start.
How far is the flight from SEA to ICN?
The distance is around 8,400 kilometres, so fill your carry-on bag with all the items you need to make the long journey comfortable. Not sure what to take on board your SeaTac to Incheon flight? A sleep mask, earplugs and a travel pillow are among the essentials.
Which airlines fly direct from Sea-Tac Airport to Seoul–Incheon Intl. Airport?
There are a few airlines that fly straight from Seattle - Tacoma Intl. Airport (SEA) to Seoul–Incheon Intl. Airport. Asiana Airlines (OZ) is an excellent choice, offering 30 flights on this route each month. If you're eager for more options, check out the deals with Korean Air (KE). This airline offers 30 flights a month between these airports.
Are Seattle - Tacoma Intl. Airport (SEA) to Seoul–Incheon Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally score a bargain, with some of the cheapest fares from Seattle - Tacoma Intl. Airport (SEA) to Incheon Intl. Airport (ICN) arising a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines issue prices that far in advance.

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