Cheap flights from Seattle to Incheon Intl Airport from C$ 550
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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
15 Oct — 22 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 8 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 15 September 2026.
Mon 14/98:48 p.m. -
2 stops25h 17m
Mon 28/93:10 p.m. -
1 stop34h 55m
Deal found 14/9C$ 1,249
Thu 1/1011:45 a.m. -
1 stop39h 20m
Tue 13/106:40 a.m. -
1 stop19h 25m
Deal found 13/9C$ 1,250
Tue 20/1011:45 a.m. -
1 stop20h 40m
Fri 6/1110:00 a.m. -
1 stop39h 45m
Deal found 13/9C$ 1,267
Sun 1/1112:10 a.m. -
1 stop26h 05m
Thu 5/1112:30 p.m. -
1 stop22h 40m
Deal found 12/9C$ 1,279
Thu 22/101:15 a.m. -
1 stop18h 15m
Tue 10/1112:30 p.m. -
1 stop22h 40m
Deal found 10/9C$ 1,281
Wed 28/1011:25 a.m. -
1 stop34h 25m
Tue 12/110:00 a.m. -
1 stop39h 45m
Deal found 13/9C$ 1,302
Sat 31/101:10 a.m. -
1 stop18h 10m
Tue 3/1112:30 p.m. -
1 stop22h 40m
Deal found 12/9C$ 1,303
Sat 24/101:10 a.m. -
1 stop26h 05m
Tue 10/1112:30 p.m. -
1 stop22h 40m
Deal found 10/9C$ 1,304
Sun 25/107:57 p.m. -
2 stops36h 43m
Sun 8/117:35 p.m. -
1 stop30h 10m
Deal found 10/9C$ 1,310
Thu 15/102:19 p.m. -
2 stops30h 21m
Tue 3/111:55 a.m. -
1 stop23h 50m
Deal found 10/9C$ 1,318
Sat 17/1011:45 a.m. -
1 stop20h 40m
Sun 1/111:55 a.m. -
1 stop23h 50m
Deal found 12/9C$ 1,320
Thu 29/1011:25 a.m. -
1 stop21h 15m
Mon 9/113:00 p.m. -
1 stop34h 45m
Deal found 10/9C$ 1,323
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 15 September 2026.
Thu 25/212:10 a.m. -
1 stop26h 05m
Tue 23/312:30 p.m. -
1 stop22h 40m
Deal found 13/9C$ 1,293
Wed 28/101:28 p.m. -
2 stops56h 22m
Fri 6/117:35 p.m. -
1 stop30h 10m
Deal found 12/9C$ 1,379
Thu 24/912:30 a.m. -
1 stop18h 30m
Wed 4/1111:40 a.m. -
1 stop23h 30m
Deal found 11/9C$ 1,548
Mon 12/107:16 a.m. -
1 stop18h 04m
Tue 10/119:20 p.m. -
Nonstop9h 50m
Deal found 13/9C$ 1,668
Fri 12/212:50 p.m. -
Nonstop11h 55m
Sat 20/26:45 p.m. -
Nonstop10h 05m
Deal found 14/9C$ 1,689
Sun 11/109:35 p.m. -
1 stop27h 45m
Wed 21/104:40 p.m. -
Nonstop10h 00m
Deal found 13/9C$ 1,693
Sat 31/107:16 a.m. -
1 stop18h 24m
Mon 2/119:20 p.m. -
Nonstop9h 50m
Deal found 12/9C$ 1,728
Fri 23/107:16 a.m. -
1 stop18h 04m
Mon 9/114:10 p.m. -
Nonstop9h 55m
Deal found 10/9C$ 1,695
Thu 1/107:15 a.m. -
1 stop18h 05m
Fri 30/106:45 p.m. -
Nonstop10h 06m
Deal found 10/9C$ 1,756
Sat 17/1012:50 p.m. -
Nonstop11h 50m
Mon 26/104:10 p.m. -
Nonstop9h 55m
Deal found 12/9C$ 1,728
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 15 September 2026.
Mon 2/1112:30 p.m. -
Nonstop12h 15m
Thu 5/116:45 p.m. -
Nonstop10h 06m
Deal found 12/9C$ 1,656
Sun 1/1112:10 a.m. -
Nonstop12h 10m
Tue 3/116:45 p.m. -
Nonstop10h 06m
Deal found 12/9C$ 1,657
Wed 28/101:40 p.m. -
Nonstop11h 55m
Fri 13/118:00 p.m. -
Nonstop9h 55m
Deal found 10/9C$ 1,659
Mon 26/1012:10 a.m. -
Nonstop12h 10m
Tue 29/124:10 p.m. -
Nonstop9h 55m
Deal found 11/9C$ 1,660
Sun 25/101:40 p.m. -
Nonstop11h 55m
Fri 13/118:00 p.m. -
Nonstop9h 55m
Deal found 10/9C$ 1,689
Sat 13/311:00 a.m. -
Nonstop11h 55m
Sat 17/49:00 p.m. -
Nonstop9h 55m
Deal found 14/9C$ 1,691
Sat 13/312:45 p.m. -
Nonstop12h 00m
Mon 12/47:00 p.m. -
Nonstop10h 20m
Deal found 14/9C$ 1,707
Fri 23/1012:50 p.m. -
Nonstop11h 50m
Sat 31/104:10 p.m. -
Nonstop9h 55m
Deal found 10/9C$ 1,718
Sat 31/101:30 p.m. -
Nonstop12h 15m
Wed 4/116:45 p.m. -
Nonstop10h 06m
Deal found 12/9C$ 1,725
Sat 17/1012:50 p.m. -
Nonstop11h 50m
Mon 26/104:10 p.m. -
Nonstop9h 55m
Deal found 11/9C$ 1,728
Fri 16/1012:50 p.m. -
Nonstop11h 50m
Wed 4/114:10 p.m. -
Nonstop9h 55m
Deal found 12/9C$ 1,730
Fri 13/1112:30 p.m. -
Nonstop12h 15m
Sat 28/114:10 p.m. -
Nonstop9h 55m
Deal found 14/9C$ 1,738
Last-minute flights from Seattle to Incheon Intl
Discover last-minute flight deals from Seattle to Incheon Intl. Data last updated 15 September 2026 and is based on user searches.
Mon 14/98:48 p.m. -
2 stops25h 17m
Mon 28/93:10 p.m. -
1 stop34h 55m
Deal found 14/9C$ 1,249
Mon 14/98:48 p.m. -
2 stops23h 52m
Fri 18/98:05 p.m. -
1 stop30h 00m
Deal found 14/9C$ 1,325
Thu 1/1011:45 a.m. -
1 stop39h 20m
Tue 13/106:40 a.m. -
1 stop19h 25m
Deal found 13/9C$ 1,250
Thu 15/102:19 p.m. -
2 stops30h 21m
Tue 3/111:55 a.m. -
1 stop23h 50m
Deal found 10/9C$ 1,318
Sat 17/1011:45 a.m. -
1 stop20h 40m
Sun 1/111:55 a.m. -
1 stop23h 50m
Deal found 12/9C$ 1,320
Tue 20/1011:45 a.m. -
1 stop20h 40m
Fri 6/1110:00 a.m. -
1 stop39h 45m
Deal found 13/9C$ 1,267
Thu 22/101:15 a.m. -
1 stop18h 15m
Tue 10/1112:30 p.m. -
1 stop22h 40m
Deal found 10/9C$ 1,281
Sat 24/101:10 a.m. -
1 stop26h 05m
Tue 10/1112:30 p.m. -
1 stop22h 40m
Deal found 10/9C$ 1,304
Sat 24/101:10 a.m. -
1 stop18h 10m
Mon 9/1112:30 p.m. -
1 stop22h 40m
Deal found 10/9C$ 1,327
Sun 25/107:57 p.m. -
2 stops36h 43m
Sun 8/117:35 p.m. -
1 stop30h 10m
Deal found 10/9C$ 1,310
Wed 28/1011:25 a.m. -
1 stop34h 25m
Tue 12/110:00 a.m. -
1 stop39h 45m
Deal found 13/9C$ 1,302
Thu 29/1011:25 a.m. -
1 stop21h 15m
Mon 9/113:00 p.m. -
1 stop34h 45m
Deal found 10/9C$ 1,323
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 15 September 2026.
Sun 25/107:57 p.m. -
3 stops30h 48m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 550
Sun 11/107:55 p.m. -
1 stop17h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 668
Sun 15/1112:10 a.m. -
1 stop18h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 690
Sun 4/101:15 a.m. -
1 stop25h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 717
Sun 1/113:51 p.m. -
2 stops57h 44m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 736
Tue 29/95:59 p.m. -
2 stops36h 26m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 743
Sun 11/1012:50 p.m. -
Nonstop11h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 817
Sat 6/310:03 a.m. -
2 stops34h 47m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 820
Sat 31/101:40 p.m. -
Nonstop11h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 847
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 15 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 15 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 11/3
12:10 a.m.-7:15 p.m.
1 stop26h 05m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 690
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 15/11
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$ 690
Quickest round-trip
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 8/11
12:40 p.m.-5:35 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Mon 16/11
11:00 a.m.-3:55 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 18/10
1:35 p.m.-5:30 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sun 15/11
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$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Thu 24/9
1:35 p.m.-5:30 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Wed 10/3
12:40 p.m.-5:35 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sat 14/11
12:40 p.m.-5:35 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
SeattleIncheon
SEA Seattle/Tacoma Intl - ICN Incheon Intl
SEAICN
Seattle/Tacoma Intl
Sat 24/10
1:40 p.m.-5:35 p.m.
Nonstop11h 55m
Incheon Intl
Wed 31/12
12:00 a.m.-7:00 a.m.
Nonstop0h 00m
C$ 860
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/9
Showing 1-10 of 22 resultsSorted by cheapest first
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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 7 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$ 470). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 1,942). 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 15 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$ 470 and C$ 1,625 in October.The cheapest round-trip price found within the last 5 days was C$ 1,250 on Cathay Pacific (1 Oct-13 Oct).
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 15 September 2026.
The most flights from SEA to ICN are scheduled on a Friday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).
How often are flights from Seattle to Incheon delayed?
About 26% of weekly flights between Seattle and Incheon have experienced delays in the past year, with the average delay time being 148 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 7 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?
China Airlines, Cathay Pacific, and EVA Air can get you from Seattle to Incheon Intl Airport in just under 18h 30m. Your travel time can differ by up to 14h 25m. 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$ 470). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 1,942). 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 15 September 2026.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 15 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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