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Cheap flights from Seattle to Incheon Intl Airport from C$ 565

SEA — ICN
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Incheon Intl

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Incheon Intl

Mon 16/1112:30 p.m. -
Nonstop12h 15m
Mon 23/116:45 p.m. -
Nonstop10h 06m
Deal found 2/11C$ 1,250
Mon 30/1110:25 a.m. -
1 stop21h 15m
Sun 20/123:00 p.m. -
1 stop34h 45m
Deal found 2/11C$ 1,259
Tue 17/117:20 a.m. -
1 stop17h 20m
Sun 6/129:20 p.m. -
Nonstop9h 50m
Deal found 3/11C$ 1,260
Mon 16/116:00 a.m. -
2 stops30h 40m
Mon 23/1112:45 p.m. -
2 stops26h 05m
Deal found 2/11C$ 1,277
Mon 30/1110:25 a.m. -
1 stop39h 10m
Wed 23/121:55 a.m. -
1 stop23h 50m
Deal found 2/11C$ 1,310
Sun 15/1112:30 p.m. -
Nonstop12h 15m
Sat 5/126:45 p.m. -
Nonstop10h 11m
Deal found 30/10C$ 1,320
Mon 30/113:46 p.m. -
2 stops33h 49m
Wed 9/121:55 a.m. -
1 stop23h 50m
Deal found 3/11C$ 1,327
Mon 30/1110:25 a.m. -
1 stop39h 10m
Sat 19/126:45 a.m. -
1 stop19h 00m
Deal found 2/11C$ 1,329
Fri 13/117:20 a.m. -
1 stop17h 20m
Thu 26/114:10 p.m. -
Nonstop9h 55m
Deal found 30/10C$ 1,330
Wed 18/1110:25 a.m. -
1 stop21h 15m
Mon 23/1110:00 a.m. -
1 stop39h 45m
Deal found 2/11C$ 1,331
Tue 3/1112:00 p.m. -
2 stops43h 40m
Mon 9/117:35 p.m. -
1 stop30h 10m
Deal found 1/11C$ 1,345

Find flight deals from Seattle to Incheon Intl

Round-trip from

C$ 1,200

One-way from

C$ 565

Popular in

December

Cheapest in

April

Average price

C$ 1,461

Good one-way deal

C$ 685 or less
Cathay Pacific
  • Cathay Pacific
  • 18/1-23/2
  • 2 total stops
  • 74h 10m total
  • Seattle to Incheon
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Hainan Airlines
  • Hainan Airlines
  • 31/12-31/12
  • 2 total stops
  • 41h 10m total
  • Seattle to Incheon
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 449 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 102 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Incheon Intl.
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Cheapflights Fare Finder

 
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

Tue 17/11

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$ 627

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Wed 10/2

4:49 p.m.-12:45 p.m.

2 stops26h 56m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 748

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Tue 24/11

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$ 808
Quickest round-trip

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Mon 15/2

12:50 p.m.-5:45 p.m.

Nonstop11h 55m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 808

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Sat 6/3

12:50 p.m.-5:45 p.m.

Nonstop11h 55m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 866

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Sun 22/11

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$ 899

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Fri 22/1

12:40 p.m.-5:45 p.m.

Nonstop12h 05m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 899

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Fri 25/12

12:35 p.m.-5:45 p.m.

Nonstop12h 10m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 957

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Mon 28/12

12:35 p.m.-5:45 p.m.

Nonstop12h 10m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 958

SeattleIncheon

SEA Seattle/Tacoma Intl - ICN Incheon Intl

SEAICN

Seattle/Tacoma Intl

Wed 30/12

7:05 p.m.-6:20 p.m.

1 stop30h 15m

Incheon Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 962

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 23 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.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Incheon Intl Airport

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$ 473). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 2,043). 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?

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 below average for this route at the moment.

Seattle to Incheon Intl Airport flights typically cost between C$ 1,232 and C$ 1,596 in January.
The cheapest round-trip price found within the last 5 days was C$ 1,200 on Cathay Pacific (18 Jan-23 Feb).

Related info for your journey

  • 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 5 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, Delta, and Korean Air can get you from Seattle to Incheon Intl Airport in just under 11h 55m. Your travel time can differ by up to 22h 30m. 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 (100%), Asiana Airlines (100%) and United Airlines (100%).

  • 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$ 473). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 2,043). 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.

See more FAQs

Travelling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon

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