Popular airlines from Seattle-Tacoma International Airport (SEA) to Seoul
Korean AirKorean Air
Air CanadaAir Canada
Asiana AirlinesAsiana Airlines
EVA AirwaysEVA Airways
Cathay PacificCathay Pacific
Alaska AirlinesAlaska Airlines
UnitedUnited
Today's featured flight deals from Seattle-Tacoma International Airport (SEA) to Seoul
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Sat, Aug 23 at 12:55pm from Seattle, arriving on Sun, Aug 24 at 4:30pm in Seoul.Returning on Sat, Aug 30 at 9:00pm from Seoul, arriving on Sun, Aug 31 at 12:35pm in Seattle.Select Delta flight departing on Sat, Aug 23 at 12:55pm from Seattle, returning on Sat, Aug 30 at 9:00pm from Seoul priced at $91850% less than typical$918
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Sun, Aug 24 at 12:55pm from Seattle, arriving on Mon, Aug 25 at 4:30pm in Seoul.Returning on Fri, Aug 29 at 7:20pm from Seoul, arriving at 2:01pm in Seattle.Select Delta flight departing on Sun, Aug 24 at 12:55pm from Seattle, returning on Fri, Aug 29 at 7:20pm from Seoul priced at $85250% less than typical$852
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Mon, Aug 25 at 12:55pm from Seattle, arriving on Tue, Aug 26 at 4:30pm in Seoul.Returning on Sun, Aug 31 at 2:30pm from Seoul, arriving at 4:51pm in Seattle.Select Delta flight departing on Mon, Aug 25 at 12:55pm from Seattle, returning on Sun, Aug 31 at 2:30pm from Seoul priced at $88850% less than typical$888
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Tue, Aug 26 at 12:55pm from Seattle, arriving on Wed, Aug 27 at 4:30pm in Seoul.Returning on Sun, Aug 31 at 2:30pm from Seoul, arriving at 4:51pm in Seattle.Select Delta flight departing on Tue, Aug 26 at 12:55pm from Seattle, returning on Sun, Aug 31 at 2:30pm from Seoul priced at $88850% less than typical$888
- Seattle (SEA) to Seoul (ICN).Asiana Airlines, nonstop.Departing on Sun, Aug 31 at 2:30pm from Seattle, arriving on Mon, Sep 1 at 5:55pm in Seoul.Returning on Sun, Sep 7 at 6:20pm from Seoul, arriving at 12:30pm in Seattle.Select Asiana Airlines flight departing on Sun, Aug 31 at 2:30pm from Seattle, returning on Sun, Sep 7 at 6:20pm from Seoul priced at $84150% less than typical$841
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Thu, Aug 28 at 12:55pm from Seattle, arriving on Fri, Aug 29 at 4:30pm in Seoul.Returning on Mon, Sep 1 at 7:20pm from Seoul, arriving at 1:40pm in Seattle.Select Delta flight departing on Thu, Aug 28 at 12:55pm from Seattle, returning on Mon, Sep 1 at 7:20pm from Seoul priced at $95745% less than typical$957
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Sun, Aug 24 at 12:55pm from Seattle, arriving on Mon, Aug 25 at 4:30pm in Seoul.Returning on Tue, Sep 2 at 7:20pm from Seoul, arriving at 1:40pm in Seattle.Select Delta flight departing on Sun, Aug 24 at 12:55pm from Seattle, returning on Tue, Sep 2 at 7:20pm from Seoul priced at $85245% less than typical$852
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Mon, Aug 25 at 12:55pm from Seattle, arriving on Tue, Aug 26 at 4:30pm in Seoul.Returning on Wed, Sep 3 at 7:20pm from Seoul, arriving at 1:40pm in Seattle.Select Delta flight departing on Mon, Aug 25 at 12:55pm from Seattle, returning on Wed, Sep 3 at 7:20pm from Seoul priced at $85245% less than typical$852
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Mon, Aug 25 at 12:55pm from Seattle, arriving on Tue, Aug 26 at 4:30pm in Seoul.Returning on Tue, Sep 2 at 7:20pm from Seoul, arriving at 1:40pm in Seattle.Select Delta flight departing on Mon, Aug 25 at 12:55pm from Seattle, returning on Tue, Sep 2 at 7:20pm from Seoul priced at $85245% less than typical$852
Cheap Flights from Seattle to Seoul (SEA-SEL)
Prices were available within the past 7 days and start at $432 for one-way flights and $796 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from Seattle (SEA) to Seoul (SEL)
September is typically the cheapest month to fly
Graph displaying average flight prices per month
Alternative airports near Seoul
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Gimpo Intl. |
Roundtrip price | $795 |
Distance | 5185 mi |
Seattle to Seoul Flights
The cheapest times to fly from Seattle to Seoul
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Seoul are during the month of September. You can find some of the cheapest flights from Seattle to Seoul with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Seattle to Seoul
Sunday is one of the best days to book for cheap flights from Seattle to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Seattle to Seoul
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $432 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
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