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Cheap flights from Seattle to Seoul from $493

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Seoul departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
EVA Air Logo
2:10 am - 6:10 pm
SEA
-
GMP
24h 00m
1 stop
EVA Air Logo
1:50 pm - 7:10 pm
GMP
-
SEA
21h 20m
1 stop
$1,029EVA Air
Sun, Aug 16 - Sat, Aug 29
EVA Air Logo
1:30 am - 7:15 pm
SEA
-
GMP
25h 45m
1 stop
EVA Air Logo
1:50 pm - 7:10 pm
GMP
-
SEA
21h 20m
1 stop
$1,041EVA Air
Mon, Sep 28 - Fri, Oct 30
EVA Air Logo
1:30 am - 6:10 pm
SEA
-
GMP
24h 40m
1 stop
EVA Air Logo
1:50 pm - 7:10 pm
GMP
-
SEA
21h 20m
1 stop
$1,041EVA Air
Sun, Sep 27 - Fri, Oct 30
EVA Air Logo
1:10 am - 12:50 pm
SEA
-
GMP
19h 40m
1 stop
EVA Air Logo
1:50 pm - 5:30 pm
GMP
-
SEA
20h 40m
1 stop
$1,042EVA Air
Thu, Oct 29 - Sat, Nov 14
EVA Air Logo
1:30 am - 12:50 pm
SEA
-
GMP
19h 20m
1 stop
EVA Air Logo
1:50 pm - 7:20 pm
GMP
-
SEA
21h 30m
1 stop
$1,042EVA Air
Thu, Sep 17 - Fri, Oct 2
EVA Air Logo
12:10 am - 6:00 pm
SEA
-
GMP
24h 50m
1 stop
EVA Air Logo
1:50 pm - 6:10 pm
GMP
-
SEA
21h 20m
1 stop
$1,044EVA Air
Sun, Jan 17 - Fri, Jan 22
EVA Air Logo
1:30 am - 6:10 pm
SEA
-
GMP
24h 40m
1 stop
EVA Air Logo
1:50 pm - 6:30 pm
GMP
-
SEA
20h 40m
1 stop
$1,044EVA Air
Sun, Oct 4 - Sat, Oct 31
Japan Airlines Logo
8:41 am - 10:05 pm
SEA
-
GMP
20h 24m
2 stops
Japan Airlines Logo
12:05 pm - 9:50 am
GMP
-
SEA
14h 45m
1 stop
$1,329Japan Airlines
Mon, Nov 9 - Tue, Nov 17
Japan Airlines Logo
11:50 am - 10:05 pm
SEA
-
GMP
17h 15m
1 stop
Japan Airlines Logo
8:00 am - 9:50 am
GMP
-
SEA
18h 50m
1 stop
$1,333Japan Airlines
Mon, Nov 9 - Tue, Nov 17
Japan Airlines Logo
8:41 am - 10:05 pm
SEA
-
GMP
20h 24m
2 stops
Japan Airlines Logo
12:05 pm - 9:50 am
GMP
-
SEA
14h 45m
1 stop
$1,342Japan Airlines
Sun, Nov 8 - Wed, Nov 18

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EVA Air flights from Seattle to Seoul Gimpo Intl Airport

Our best EVA Air deals on Seattle to Seoul Gimpo Intl Airport flight tickets
EVA Air
Aug 16
SEA2:10 amSeattle/Tacoma Intl
24h 00m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Aug 29
GMP1:50 pmSeoul Gimpo Intl
21h 20m
1 stop
SEA7:10 pmSeattle/Tacoma Intl
$1,029
EVA Air
Sep 27
SEA1:30 amSeattle/Tacoma Intl
24h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Oct 30
GMP1:50 pmSeoul Gimpo Intl
21h 20m
1 stop
SEA7:10 pmSeattle/Tacoma Intl
$1,041
EVA Air
Sep 17
SEA1:30 amSeattle/Tacoma Intl
19h 20m
1 stop
GMP12:50 pmSeoul Gimpo Intl
Oct 2
GMP1:50 pmSeoul Gimpo Intl
21h 30m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
$1,042

Japan Airlines flights from Seattle to Seoul Gimpo Intl Airport

Our best Japan Airlines deals on Seattle to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Oct 22
SEA6:39 amSeattle/Tacoma Intl
22h 36m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Nov 18
GMP12:05 pmSeoul Gimpo Intl
14h 45m
1 stop
SEA9:50 amSeattle/Tacoma Intl
$1,354
Japan Airlines
Aug 17
SEA7:03 amSeattle/Tacoma Intl
22h 12m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Aug 29
GMP8:00 amSeoul Gimpo Intl
18h 50m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$1,367
Japan Airlines
Aug 31
SEA1:25 pmSeattle/Tacoma Intl
29h 15m
1 stop
GMP10:40 amSeoul Gimpo Intl
Sep 14
GMP8:00 amSeoul Gimpo Intl
18h 35m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$1,375

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Seoul Gimpo Intl Airport 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, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Seattle to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 8/16

2:10 am-6:10 pm

1 stop24h 00m

Seoul Gimpo Intl

Sat 8/29

1:50 pm-7:10 pm

1 stop21h 20m

$1,029

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 9/28

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Fri 10/30

1:50 pm-7:10 pm

1 stop21h 20m

$1,041

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 9/27

1:30 am-6:10 pm

1 stop24h 40m

Seoul Gimpo Intl

Fri 10/30

1:50 pm-7:10 pm

1 stop21h 20m

$1,041

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 10/29

1:10 am-12:50 pm

1 stop19h 40m

Seoul Gimpo Intl

Sat 11/14

1:50 pm-5:30 pm

1 stop20h 40m

$1,042

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 9/17

1:30 am-12:50 pm

1 stop19h 20m

Seoul Gimpo Intl

Fri 10/2

1:50 pm-7:20 pm

1 stop21h 30m

$1,042

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 1/17

12:10 am-6:00 pm

1 stop24h 50m

Seoul Gimpo Intl

Fri 1/22

1:50 pm-6:10 pm

1 stop21h 20m

$1,044

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 10/4

1:30 am-6:10 pm

1 stop24h 40m

Seoul Gimpo Intl

Sat 10/31

1:50 pm-6:30 pm

1 stop20h 40m

$1,044
Quickest round-trip

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 11/9

8:41 am-10:05 pm

2 stops20h 24m

Seoul Gimpo Intl

Tue 11/17

12:05 pm-9:50 am

1 stop14h 45m

$1,329

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 11/9

11:50 am-10:05 pm

1 stop17h 15m

Seoul Gimpo Intl

Tue 11/17

8:00 am-9:50 am

1 stop18h 50m

$1,333

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 11/8

8:41 am-10:05 pm

2 stops20h 24m

Seoul Gimpo Intl

Wed 11/18

12:05 pm-9:50 am

1 stop14h 45m

$1,342

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from Seattle to Seoul Gimpo Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Seoul Gimpo Intl?

Japan Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Seoul Gimpo Intl

When to book flights from Seattle to Seoul Gimpo Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Seoul Gimpo Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Seoul Gimpo Intl Airport (SEA to GMP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Seoul Gimpo Intl Airport

Fastest flight time

17h 00m

Direct flights

None
The fastest flight from Seattle to Seoul Gimpo Intl Airport takes 17h 00m
There are no direct flights from Seattle to Seoul Gimpo Intl Airport. There are no popular flight routes from Seattle to Seoul Gimpo Intl Airport.
Search flight deals

Frequently asked questions about flying from Seattle to Seoul Gimpo Intl Airport

  • How far is Seattle/Tacoma Intl to Seoul Gimpo Intl by plane?

    The distance between Seattle/Tacoma Intl and Seoul Gimpo Intl is about 5173.4 mi. Typically, this will take 17h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Seoul Gimpo Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Seoul Gimpo Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Seoul Gimpo Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Seoul Gimpo Intl Airport.

  • What documentation or ID do you need to fly to Seoul Gimpo Intl Airport?

    The necessary travel and health documents for your Seoul Gimpo Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Seoul?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Seoul. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Seoul with flexible booking policies on momondo?

Flights from Seattle to Seoul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Seoul?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Seoul.

I’m not ready to book a flight from Seattle to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from Seattle and alert you when they change.

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