Cheap flights from Seattle to Incheon Intl Airport from C$ 680
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
8 Oct — 15 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Incheon Intl are usually found in April or August, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Monday
Cheap flight deals from Seattle to Incheon Intl
Enter your travel dates to find the best prices.
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Cheapest flights from Seattle to Incheon Intl
Explore the most affordable flight options available from Seattle to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.
Wed 30/911:45 a.m. -
1 stop20h 40m
Sun 25/103:00 p.m. -
1 stop34h 45m
Deal found 6/9C$ 1,190
Wed 14/1011:45 a.m. -
1 stop20h 40m
Sun 24/11:50 p.m. -
1 stop35h 55m
Deal found 6/9C$ 1,243
Mon 23/1110:25 a.m. -
1 stop39h 10m
Tue 15/1210:00 a.m. -
1 stop39h 45m
Deal found 8/9C$ 1,244
Sat 19/911:45 a.m. -
1 stop32h 55m
Tue 20/108:00 a.m. -
1 stop18h 05m
Deal found 7/9C$ 1,259
Tue 24/1110:25 a.m. -
1 stop21h 15m
Fri 11/121:55 a.m. -
1 stop23h 50m
Deal found 8/9C$ 1,260
Thu 12/1112:10 a.m. -
1 stop26h 05m
Tue 17/1112:30 p.m. -
1 stop22h 40m
Deal found 4/9C$ 1,273
Sun 4/101:15 a.m. -
1 stop26h 20m
Tue 3/1112:30 p.m. -
1 stop22h 40m
Deal found 7/9C$ 1,274
Sun 8/1112:10 a.m. -
1 stop26h 05m
Thu 12/118:15 p.m. -
1 stop14h 55m
Deal found 4/9C$ 1,296
Sun 4/101:15 a.m. -
1 stop18h 00m
Sun 1/1112:30 p.m. -
1 stop22h 40m
Deal found 6/9C$ 1,298
Wed 30/911:45 a.m. -
1 stop20h 40m
Sat 31/101:55 a.m. -
2 stops57h 46m
Deal found 6/9C$ 1,303
Mon 28/97:10 p.m. -
2 stops25h 30m
Tue 27/101:55 a.m. -
1 stop23h 50m
Deal found 3/9C$ 1,310
Mon 28/97:10 p.m. -
2 stops25h 30m
Mon 26/101:55 a.m. -
1 stop23h 50m
Deal found 6/9C$ 1,312
Best flights from Seattle to Incheon Intl
Discover carefully curated flight deals from Seattle to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.
Mon 28/97:10 p.m. -
2 stops26h 55m
Sun 25/101:50 p.m. -
1 stop35h 55m
Deal found 5/9C$ 1,312
Wed 7/101:00 p.m. -
Nonstop11h 50m
Wed 28/106:45 p.m. -
Nonstop10h 06m
Deal found 3/9C$ 1,649
Sat 10/107:16 a.m. -
1 stop18h 04m
Tue 10/116:45 p.m. -
Nonstop10h 06m
Deal found 7/9C$ 1,690
Sun 27/98:48 p.m. -
2 stops35h 37m
Tue 27/101:55 a.m. -
1 stop23h 50m
Deal found 5/9C$ 1,328
Wed 30/911:45 a.m. -
1 stop20h 40m
Fri 30/1010:00 a.m. -
2 stops24h 31m
Deal found 5/9C$ 1,372
Mon 21/97:15 a.m. -
1 stop18h 05m
Wed 30/94:40 p.m. -
Nonstop10h 00m
Deal found 4/9C$ 1,656
Mon 2/119:35 p.m. -
1 stop27h 05m
Mon 7/124:10 p.m. -
Nonstop9h 50m
Deal found 3/9C$ 1,656
Fri 6/1110:03 a.m. -
2 stops21h 37m
Sat 14/1110:00 a.m. -
2 stops25h 41m
Deal found 7/9C$ 1,552
Mon 12/107:16 a.m. -
1 stop18h 04m
Tue 10/114:10 p.m. -
Nonstop9h 55m
Deal found 8/9C$ 1,656
Wed 23/97:15 a.m. -
1 stop18h 05m
Wed 28/104:10 p.m. -
Nonstop9h 55m
Deal found 5/9C$ 1,656
Thu 24/91:00 p.m. -
Nonstop11h 50m
Sat 3/107:00 p.m. -
Nonstop10h 14m
Deal found 5/9C$ 1,679
Wed 4/117:16 a.m. -
1 stop17h 24m
Fri 27/114:10 p.m. -
Nonstop9h 50m
Deal found 4/9C$ 1,686
Direct flights from Seattle to Incheon Intl
Explore direct flight options from Seattle to Incheon Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.
Tue 27/1012:10 a.m. -
Nonstop12h 10m
Mon 9/119:00 p.m. -
Nonstop9h 55m
Deal found 8/9C$ 1,645
Thu 24/91:00 p.m. -
Nonstop11h 50m
Thu 22/107:20 p.m. -
Nonstop10h 14m
Deal found 7/9C$ 1,649
Wed 18/1112:40 p.m. -
Nonstop11h 55m
Sat 12/128:00 p.m. -
Nonstop9h 55m
Deal found 8/9C$ 1,650
Tue 6/1012:50 p.m. -
Nonstop11h 50m
Mon 2/114:10 p.m. -
Nonstop9h 55m
Deal found 6/9C$ 1,652
Sun 20/91:00 p.m. -
Nonstop11h 50m
Mon 19/107:00 p.m. -
Nonstop10h 14m
Deal found 7/9C$ 1,679
Sun 15/1112:40 p.m. -
Nonstop11h 55m
Fri 11/128:00 p.m. -
Nonstop9h 55m
Deal found 8/9C$ 1,681
Tue 6/1012:50 p.m. -
Nonstop11h 50m
Sat 7/116:45 p.m. -
Nonstop10h 06m
Deal found 6/9C$ 1,682
Tue 20/101:00 p.m. -
Nonstop11h 50m
Mon 30/114:10 p.m. -
Nonstop9h 50m
Deal found 4/9C$ 1,697
Sun 11/101:00 p.m. -
Nonstop11h 50m
Sat 24/107:00 p.m. -
Nonstop10h 14m
Deal found 6/9C$ 1,708
Fri 23/1012:50 p.m. -
Nonstop11h 50m
Sat 31/104:10 p.m. -
Nonstop9h 55m
Deal found 8/9C$ 1,710
Sat 17/1012:50 p.m. -
Nonstop11h 50m
Sun 8/114:10 p.m. -
Nonstop9h 55m
Deal found 6/9C$ 1,711
Thu 8/1012:10 a.m. -
Nonstop12h 20m
Tue 27/109:00 p.m. -
Nonstop9h 55m
Deal found 3/9C$ 1,717
Last-minute flights from Seattle to Incheon Intl
Discover last-minute flight deals from Seattle to Incheon Intl. Data last updated 8 September 2026 and is based on user searches.
Sat 19/911:45 a.m. -
1 stop32h 55m
Tue 20/108:00 a.m. -
1 stop18h 05m
Deal found 7/9C$ 1,259
Mon 28/97:10 p.m. -
2 stops26h 55m
Sun 25/101:50 p.m. -
1 stop35h 55m
Deal found 3/9C$ 1,310
Mon 28/97:10 p.m. -
2 stops25h 30m
Mon 26/101:55 a.m. -
1 stop23h 50m
Deal found 6/9C$ 1,312
Wed 30/911:45 a.m. -
1 stop20h 40m
Sun 1/117:35 p.m. -
1 stop30h 10m
Deal found 6/9C$ 1,190
Thu 1/1011:45 a.m. -
1 stop18h 40m
Sun 1/117:35 p.m. -
1 stop30h 10m
Deal found 6/9C$ 1,314
Sun 4/101:15 a.m. -
1 stop26h 20m
Tue 3/1112:30 p.m. -
1 stop22h 40m
Deal found 7/9C$ 1,274
Sun 4/101:15 a.m. -
1 stop26h 20m
Sun 8/1112:30 p.m. -
1 stop22h 40m
Deal found 7/9C$ 1,298
Wed 14/1011:45 a.m. -
1 stop20h 40m
Sun 24/11:50 p.m. -
1 stop35h 55m
Deal found 6/9C$ 1,243
Wed 14/1011:45 a.m. -
1 stop20h 40m
Fri 23/101:40 p.m. -
1 stop36h 25m
Deal found 4/9C$ 1,313
Mon 19/101:15 a.m. -
1 stop26h 20m
Thu 22/108:35 p.m. -
1 stop14h 40m
Deal found 4/9C$ 1,273
Thu 29/101:10 a.m. -
1 stop26h 05m
Sun 15/1112:30 p.m. -
1 stop22h 40m
Deal found 7/9C$ 1,320
One-way flights from Seattle to Incheon Intl
Search for one-way flight options from Seattle to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.
Thu 26/114:59 p.m. -
2 stops27h 51m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 680
Thu 4/312:10 a.m. -
1 stop18h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 687
Tue 1/1212:10 a.m. -
1 stop18h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/9C$ 713
Sun 1/113:51 p.m. -
2 stops57h 44m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 4/9C$ 733
Sat 20/210:03 a.m. -
2 stops33h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 5/9C$ 815
Sat 26/95:59 p.m. -
2 stops26h 41m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 5/9C$ 822
Wed 14/101:30 a.m. -
1 stop25h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 5/9C$ 851
Tue 27/1012:10 a.m. -
Nonstop12h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 8/9C$ 853
Tue 13/101:00 p.m. -
Nonstop11h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/9C$ 856
Tue 6/1012:50 p.m. -
Nonstop11h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 4/9C$ 857
Sun 11/107:16 a.m. -
1 stop18h 04m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/9C$ 861
Find flight deals from Seattle to Incheon Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Incheon Intl (ICN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 September 2026.
Customize your flight search to find flights from Seattle to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 8 September 2026.
Use the filters below to find and compare flights from Seattle to Incheon Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 4/3
12:10 a.m.-11:20 a.m.
1 stop18h 10m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 687
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 4/3
10:03 a.m.-1:50 p.m.
2 stops34h 47m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 733
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sat 26/9
5:59 p.m.-12:40 p.m.
2 stops26h 41m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 822
Quickest round-trip
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 14/10
1:00 p.m.-4:50 p.m.
Nonstop11h 50m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 7/10
1:00 p.m.-4:50 p.m.
Nonstop11h 50m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 12/11
12:30 p.m.-5:45 p.m.
Nonstop12h 15m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 11/10
1:00 p.m.-4:50 p.m.
Nonstop11h 50m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 8/10
1:00 p.m.-4:50 p.m.
Nonstop11h 50m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 1/11
12:30 p.m.-5:45 p.m.
Nonstop12h 15m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 856
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Mon 28/9
7:10 p.m.-2:05 p.m.
2 stops26h 55m
Incheon Intl
Sun 25/10
1:50 p.m.-9:45 a.m.
1 stop35h 55m
C$ 1,312
Flights are sorted by cheapest round-trip flights first.
Deals found on 8/9
Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Seattle to Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Seattle with our price prediction graph.
SEA-ICN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Incheon Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Seattle to Incheon Intl Airport?
The best time to book flights from Seattle to Incheon Intl Airport is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Incheon Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Seattle to Incheon Intl Airport (average of C$ 467). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 1,932). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to ICN?
Find hourly flight availability from Seattle to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 September 2026.
When flying from Seattle to Incheon Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Seattle to Incheon Intl Airport?
Airfare is typical for this route at the moment.
Seattle to Incheon Intl Airport flights typically cost between C$ 467 and C$ 1,518 in September.The cheapest round-trip price found within the last 5 days was C$ 1,190 on Cathay Pacific (30 Sep-10 Nov).
Weekly flight availability from Seattle to Incheon Intl Airport
Explore weekly flight availability from Seattle to Incheon Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 8 September 2026.
The most flights from SEA to ICN are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).
How often are flights from Seattle to Incheon delayed?
About 28% of weekly flights between Seattle and Incheon have experienced delays in the past year, with the average delay time being 150 minutes.
What is the most punctual flight time for Seattle to Incheon flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to Incheon flights?
Over the past year, Delta has had the lowest number of delays on this route, with just 19% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Seattle to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Seattle to Incheon Intl?
Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Incheon Intl. You should not have trouble finding flights to Incheon Intl from Seattle/Tacoma Intl; the airport handles an average of 6 outbound flights to Incheon Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Seattle airport to Incheon Intl. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.
How long is the flight from Seattle to Incheon Intl Airport?
Cathay Pacific and Delta can get you from Seattle to Incheon Intl Airport in just under 12h 15m. Your travel time can differ by up to 14h 40m. There are 8369 km between Seattle and Incheon Intl Airport. This flight may include one or multiple stops.
What are the most reliable airlines from Seattle to Incheon Intl Airport?
The top 3 most reliable airlines when flying from Seattle to Incheon Intl Airport are Thai Airways (98%), Asiana Airlines (98%) and United Airlines (98%).
Can I find deals for flights from Seattle to Incheon Intl that include hotel bookings?
Yes. In addition to deals on Seattle to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Incheon Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Incheon Intl.
Can I find deals for business class flights from Seattle to Incheon Intl?
Yes. Cheapflights offers flight deals from Seattle to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Incheon Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Seattle to Incheon Intl Airport (average of C$ 467). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 1,932). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Incheon Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seattle to Incheon Intl?
Deals for Seattle to Incheon Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Incheon Intl?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Incheon Intl from Seattle.
Can Cheapflights find flights from Seattle to Incheon Intl with no change fees?
Yes! Cheapflights helps users easily find flights from Seattle to Incheon Intl with no change fees.
Can Cheapflights notify me if prices for flights from Seattle to Incheon Intl become cheaper?
Of course! You can now track prices for flights from Seattle to Incheon Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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