Popular airlines from Seattle-Tacoma International Airport (SEA) to Seoul
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Today's featured flight deals from Seattle-Tacoma International Airport (SEA) to Seoul
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Fri, Oct 24 at 12:15pm from Seattle, arriving on Sat, Oct 25 at 4:30pm in Seoul.Returning on Sat, Nov 1 at 5:55pm from Seoul, arriving at 10:06pm in Seattle.Select Delta flight departing on Fri, Oct 24 at 12:15pm from Seattle, returning on Sat, Nov 1 at 5:55pm from Seoul priced at $86140% less than typical$861
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Tue, Oct 21 at 12:15pm from Seattle, arriving on Wed, Oct 22 at 4:30pm in Seoul.Returning on Sat, Nov 1 at 5:55pm from Seoul, arriving at 10:06pm in Seattle.Select Delta flight departing on Tue, Oct 21 at 12:15pm from Seattle, returning on Sat, Nov 1 at 5:55pm from Seoul priced at $86140% less than typical$861
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Sun, Nov 2 at 11:15am from Seattle, arriving on Mon, Nov 3 at 4:30pm in Seoul.Returning on Sat, Nov 15 at 6:55pm from Seoul, arriving at 2:31pm in Seattle.Select Delta flight departing on Sun, Nov 2 at 11:15am from Seattle, returning on Sat, Nov 15 at 6:55pm from Seoul priced at $83240% less than typical$832
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Sun, Nov 2 at 11:15am from Seattle, arriving on Mon, Nov 3 at 4:30pm in Seoul.Returning on Sat, Nov 15 at 6:55pm from Seoul, arriving at 2:31pm in Seattle.Select Delta flight departing on Sun, Nov 2 at 11:15am from Seattle, returning on Sat, Nov 15 at 6:55pm from Seoul priced at $83240% less than typical$832
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Wed, Nov 5 at 11:15am from Seattle, arriving on Thu, Nov 6 at 4:30pm in Seoul.Returning on Sat, Nov 15 at 6:55pm from Seoul, arriving at 7:16pm in Seattle.Select Delta flight departing on Wed, Nov 5 at 11:15am from Seattle, returning on Sat, Nov 15 at 6:55pm from Seoul priced at $83240% less than typical$832
- Seattle (SEA) to Seoul (ICN).Korean Air, nonstop.Departing on Thu, Nov 13 at 11:00am from Seattle, arriving on Fri, Nov 14 at 3:55pm in Seoul.Returning on Mon, Nov 17 at 6:55pm from Seoul, arriving at 10:06pm in Seattle.Select Korean Air flight departing on Thu, Nov 13 at 11:00am from Seattle, returning on Mon, Nov 17 at 6:55pm from Seoul priced at $82440% less than typical$824
- Seattle (SEA) to Seoul (ICN).Asiana Airlines, nonstop.Departing on Fri, Oct 31 at 12:10am from Seattle, arriving on Sat, Nov 1 at 4:20am in Seoul.Returning on Sat, Nov 8 at 6:55pm from Seoul, arriving at 2:31pm in Seattle.Select Asiana Airlines flight departing on Fri, Oct 31 at 12:10am from Seattle, returning on Sat, Nov 8 at 6:55pm from Seoul priced at $83340% less than typical$833
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Mon, Nov 3 at 11:15am from Seattle, arriving on Tue, Nov 4 at 4:30pm in Seoul.Returning on Sun, Nov 16 at 8:05pm from Seoul, arriving at 1:20pm in Seattle.Select Delta flight departing on Mon, Nov 3 at 11:15am from Seattle, returning on Sun, Nov 16 at 8:05pm from Seoul priced at $83035% less than typical$830
- Seattle (SEA) to Seoul (ICN).Delta, nonstop.Departing on Thu, Oct 23 at 12:15pm from Seattle, arriving on Fri, Oct 24 at 4:30pm in Seoul.Returning on Fri, Oct 31 at 8:05pm from Seoul, arriving at 2:20pm in Seattle.Select Delta flight departing on Thu, Oct 23 at 12:15pm from Seattle, returning on Fri, Oct 31 at 8:05pm from Seoul priced at $83035% less than typical$830
Cheap Flights from Seattle to Seoul (SEA-SEL)
Prices were available within the past 7 days and start at $424 for one-way flights and $694 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
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 | Incheon Intl. |
Roundtrip price | $693 |
Distance | 5203 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 November. 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 $424 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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