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Gimpo Intl

$450+ Cheap flights from Seattle (SEA) to Gimpo Intl (GMP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GMP
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Seattle to Gimpo Intl

Cheapest flights from Seattle to Gimpo Intl
Explore the most affordable flight options available from Seattle to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This lastminute.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2912:30 pm
SEA
-
GMP
1 stop16h 35m
Japan Airlines
Wed 2/1112:05 pm
GMP
-
SEA
1 stop14h 50m
Japan Airlines
Deal found 1/26$888
This oojo deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2612:30 pm
SEA
-
GMP
1 stop16h 35m
Japan Airlines
Mon 2/28:00 am
GMP
-
SEA
2 stops25h 47m
Japan Airlines
Deal found 1/25$909
This oojo deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:10 am
SEA
-
GMP
2 stops21h 40m
Japan Airlines
Mon 9/77:20 pm
GMP
-
SEA
2 stops37h 36m
Japan Airlines
Deal found 1/25$910
This oojo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:15 am
SEA
-
GMP
2 stops20h 50m
Japan Airlines
Tue 3/108:00 am
GMP
-
SEA
2 stops24h 04m
Japan Airlines
Deal found 1/26$911
This FlightHub deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:30 pm
SEA
-
GMP
1 stop29h 25m
Japan Airlines
Mon 2/27:40 pm
GMP
-
SEA
1 stop31h 15m
Japan Airlines
Deal found 1/25$916
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:41 am
SEA
-
GMP
2 stops34h 04m
Japan Airlines
Sat 5/167:20 pm
GMP
-
SEA
1 stop31h 05m
Japan Airlines
Deal found 1/26$922
This oojo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/311:43 am
SEA
-
GMP
2 stops41h 22m
Japan Airlines
Tue 2/1712:05 pm
GMP
-
SEA
2 stops39h 58m
Japan Airlines
Deal found 1/26$924
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:30 pm
SEA
-
GMP
1 stop29h 15m
Japan Airlines
Thu 5/1412:05 pm
GMP
-
SEA
1 stop14h 20m
Japan Airlines
Deal found 1/26$926
This KAYAK deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:10 am
SEA
-
GMP
2 stops21h 40m
Japan Airlines
Wed 9/912:05 pm
GMP
-
SEA
2 stops20h 51m
Japan Airlines
Deal found 1/25$935
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:41 am
SEA
-
GMP
2 stops34h 04m
Japan Airlines
Fri 5/1512:05 pm
GMP
-
SEA
1 stop14h 20m
Japan Airlines
Deal found 1/26$936
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:30 pm
SEA
-
GMP
1 stop16h 20m
Japan Airlines
Tue 5/127:55 am
GMP
-
SEA
1 stop18h 30m
Japan Airlines
Deal found 1/26$940
This KAYAK deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:30 pm
SEA
-
GMP
1 stop16h 20m
Japan Airlines
Wed 7/87:55 am
GMP
-
SEA
1 stop18h 40m
Japan Airlines
Deal found 1/25$946

Find flight deals from Seattle to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Gimpo Intl (GMP). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$909
(oojo)

One-way from

$450
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$870
Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul Gimpo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul Gimpo Intl flights.
Search Deals
From Seattle/Tacoma Intl to Seoul Gimpo Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Seoul Gimpo Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Gimpo 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 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Seattle to Seoul Gimpo Intl Airport that are best for you.

Fly from

Seattle

Fly to

Gimpo Intl

Route

Depart

Return

Price

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 2/8

9:55 am-10:30 pm

2 stops19h 35m

Seoul Gimpo Intl

Wed 2/11

7:50 pm-1:20 pm

1 stop34h 30m

$1,213

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 4/13

10:10 am-11:05 am

2 stops32h 55m

Seoul Gimpo Intl

Tue 4/21

7:40 am-8:57 pm

2 stops29h 17m

$1,219

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Wed 4/22

4:30 pm-11:05 am

1 stop26h 35m

Seoul Gimpo Intl

Mon 5/4

12:40 pm-2:25 pm

1 stop17h 45m

$1,258

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Wed 4/15

4:30 pm-6:35 pm

1 stop34h 05m

Seoul Gimpo Intl

Tue 4/21

7:40 am-8:57 pm

2 stops29h 17m

$1,273

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 7/11

9:55 am-11:05 am

2 stops33h 10m

Seoul Gimpo Intl

Thu 8/20

12:40 pm-2:25 pm

1 stop17h 45m

$1,350

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Tue 7/7

4:30 pm-6:35 pm

1 stop34h 05m

Seoul Gimpo Intl

Tue 8/18

12:40 pm-2:25 pm

1 stop17h 45m

$1,358

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 7/11

4:30 pm-11:05 am

1 stop26h 35m

Seoul Gimpo Intl

Sat 8/22

7:55 pm-2:25 pm

1 stop34h 30m

$1,358

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Fri 5/1

4:30 pm-6:35 pm

1 stop34h 05m

Seoul Gimpo Intl

Fri 5/15

12:40 pm-11:29 pm

2 stops26h 49m

$1,380

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 5/3

4:30 pm-11:05 am

1 stop26h 35m

Seoul Gimpo Intl

Thu 5/21

12:40 pm-2:25 pm

1 stop17h 45m

$1,391

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 5/18

4:30 pm-11:05 am

1 stop26h 35m

Seoul Gimpo Intl

Wed 6/10

12:40 pm-6:30 pm

2 stops21h 50m

$1,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 22 results
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Compare providers for flights from Seattle to Gimpo Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Gimpo Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Seoul Gimpo Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Seoul Gimpo Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Seoul Gimpo Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Seoul Gimpo Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Seattle with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Gimpo 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 Seoul Gimpo Intl?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Seoul Gimpo Intl. 0 airlines have flights from Seattle/Tacoma Intl to Seoul Gimpo Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Seoul Gimpo Intl should not be difficult; the airport handles an average of 0 outbound flights to Seoul Gimpo Intl per day.

  • How long is the flight from Seattle to Seoul Gimpo Intl Airport?

    Departing from Seattle to Seoul Gimpo Intl Airport will take you 19h 35m. Airlines will cover a distance of 5182 mi.

  • Can I find deals for flights from Seattle to Gimpo Intl that include hotel bookings?

    Yes. In addition to deals on Seattle to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Gimpo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Gimpo Intl.

  • Can I find deals for business class flights from Seattle to Gimpo Intl?

    Yes. Cheapflights offers flight deals from Seattle to Gimpo 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.

See more FAQs

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