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Cheap flights from Seattle to Seoul from $496

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 7/22. 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.
Multiple Airlines Logo
10:45 am - 10:25 pm
SEA
-
GMP
19h 40m
2 stops
Multiple Airlines Logo
8:10 am - 2:22 pm
GMP
-
SEA
22h 12m
2 stops
$967Multiple Airlines
Wed, Jul 8 - Mon, Jul 13
Japan Airlines Logo
7:03 am - 9:15 pm
SEA
-
GMP
22h 12m
2 stops
Japan Airlines Logo
7:15 pm - 10:50 am
GMP
-
SEA
31h 35m
1 stop
$1,166Japan Airlines
Tue, Jul 14 - Wed, Aug 19
EVA Air Logo
1:30 am - 12:50 pm
SEA
-
GMP
19h 20m
1 stop
EVA Air Logo
1:50 pm - 6:40 pm
GMP
-
SEA
20h 50m
1 stop
$1,169EVA Air
Wed, Sep 30 - Sat, Oct 17
Multiple Airlines Logo
2:10 am - 7:15 pm
SEA
-
GMP
25h 05m
1 stop
Multiple Airlines Logo
7:15 pm - 12:51 pm
GMP
-
SEA
33h 36m
2 stops
$1,176Multiple Airlines
Mon, Aug 31 - Tue, Sep 15
EVA Air Logo
1:30 am - 7:15 pm
SEA
-
GMP
25h 45m
1 stop
EVA Air Logo
1:50 pm - 7:20 pm
GMP
-
SEA
21h 30m
1 stop
$1,181EVA Air
Mon, Oct 12 - Fri, Oct 23
EVA Air Logo
1:30 am - 6:10 pm
SEA
-
GMP
24h 40m
1 stop
EVA Air Logo
1:50 pm - 6:40 pm
GMP
-
SEA
20h 50m
1 stop
$1,182EVA Air
Sun, Oct 11 - Sat, Oct 24
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
$1,184EVA Air
Sun, Oct 11 - Sat, Oct 31
EVA Air Logo
1:30 am - 12:50 pm
SEA
-
GMP
19h 20m
1 stop
EVA Air Logo
1:50 pm - 6:40 pm
GMP
-
SEA
20h 50m
1 stop
$1,219EVA Air
Thu, Oct 8 - Sat, Oct 17
EVA Air Logo
1:30 am - 12:50 pm
SEA
-
GMP
19h 20m
1 stop
EVA Air Logo
1:50 pm - 6:40 pm
GMP
-
SEA
20h 50m
1 stop
$1,220EVA Air
Thu, Sep 24 - Sat, Oct 3
EVA Air Logo
1:10 am - 12:50 pm
SEA
-
GMP
19h 40m
1 stop
EVA Air Logo
1:50 pm - 7:40 pm
GMP
-
SEA
21h 50m
1 stop
$1,222EVA Air
Thu, Aug 27 - Fri, Sep 11

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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
Jul 14
SEA7:03 amSeattle/Tacoma Intl
22h 12m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Aug 19
GMP7:15 pmSeoul Gimpo Intl
31h 35m
1 stop
SEA10:50 amSeattle/Tacoma Intl
$1,166
Japan Airlines
Sep 14
SEA1:15 pmSeattle/Tacoma Intl
29h 25m
1 stop
GMP10:40 amSeoul Gimpo Intl
Sep 28
GMP8:00 amSeoul Gimpo Intl
18h 35m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$1,360
Japan Airlines
Sep 2
SEA1:15 pmSeattle/Tacoma Intl
29h 25m
1 stop
GMP10:40 amSeoul Gimpo Intl
Sep 14
GMP7:15 pmSeoul Gimpo Intl
31h 20m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$1,373

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
Sep 30
SEA1:30 amSeattle/Tacoma Intl
19h 20m
1 stop
GMP12:50 pmSeoul Gimpo Intl
Oct 17
GMP1:50 pmSeoul Gimpo Intl
20h 50m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
$1,169
EVA Air
Oct 12
SEA1:30 amSeattle/Tacoma Intl
25h 45m
1 stop
GMP7:15 pmSeoul Gimpo Intl
Oct 23
GMP1:50 pmSeoul Gimpo Intl
21h 30m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
$1,181
EVA Air
Oct 11
SEA1:30 amSeattle/Tacoma Intl
24h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Oct 24
GMP1:50 pmSeoul Gimpo Intl
20h 50m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
$1,182

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 June 20, 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

Wed 7/8

10:45 am-10:25 pm

2 stops19h 40m

Seoul Gimpo Intl

Mon 7/13

8:10 am-2:22 pm

2 stops22h 12m

$967

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Tue 7/14

7:03 am-9:15 pm

2 stops22h 12m

Seoul Gimpo Intl

Wed 8/19

7:15 pm-10:50 am

1 stop31h 35m

$1,166
Quickest round-trip

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Wed 9/30

1:30 am-12:50 pm

1 stop19h 20m

Seoul Gimpo Intl

Sat 10/17

1:50 pm-6:40 pm

1 stop20h 50m

$1,169

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 8/31

2:10 am-7:15 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 9/15

7:15 pm-12:51 pm

2 stops33h 36m

$1,176

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 10/12

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Fri 10/23

1:50 pm-7:20 pm

1 stop21h 30m

$1,181

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 10/11

1:30 am-6:10 pm

1 stop24h 40m

Seoul Gimpo Intl

Sat 10/24

1:50 pm-6:40 pm

1 stop20h 50m

$1,182

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 10/11

1:30 am-6:10 pm

1 stop24h 40m

Seoul Gimpo Intl

Sat 10/31

1:50 pm-7:10 pm

1 stop21h 20m

$1,184

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 10/8

1:30 am-12:50 pm

1 stop19h 20m

Seoul Gimpo Intl

Sat 10/17

1:50 pm-6:40 pm

1 stop20h 50m

$1,219

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 9/24

1:30 am-12:50 pm

1 stop19h 20m

Seoul Gimpo Intl

Sat 10/3

1:50 pm-6:40 pm

1 stop20h 50m

$1,220

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 8/27

1:10 am-12:50 pm

1 stop19h 40m

Seoul Gimpo Intl

Fri 9/11

1:50 pm-7:40 pm

1 stop21h 50m

$1,222

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?

EVA Air and Japan Airlines are the most popular carriers 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

19h 00m

Direct flights

None
The fastest flight from Seattle to Seoul Gimpo Intl Airport takes 19h 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 19h 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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