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Gimpo Intl

$446+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GMP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$868
(oojo)

One-way from

$446
(oojo)

Popular in

June

Cheapest in

February

Average price

$984
From Seattle/Tacoma Intl to Seoul Gimpo Intl
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One-way flight from Seattle/Tacoma Intl to Seoul Gimpo Intl
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Highest demand for flights based on searches. 16% potential increase in price ($219 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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.
Sun 10/191:30 pmSEA - GMP
1 stop16h 20mJapan Airlines
Fri 10/318:00 amGMP - SEA
1 stop18h 50mJapan Airlines
Deal found 9/10$876
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:30 pmSEA - GMP
1 stop16h 20mJapan Airlines
Mon 9/2912:05 pmGMP - SEA
1 stop14h 20mJapan Airlines
Deal found 9/11$880
This oojo deal was found by Cheapflights users on 9/11. 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 11/2512:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Mon 12/18:00 amGMP - SEA
2 stops42h 08mJapan Airlines
Deal found 9/11$881
This oojo deal was found by Cheapflights users on 9/11. 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.
Sun 10/191:30 pmSEA - GMP
1 stop16h 20mJapan Airlines
Tue 11/118:00 amGMP - SEA
2 stops40h 11mJapan Airlines
Deal found 9/11$882
This FlightHub deal was found by Cheapflights users on 9/10. 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 10/261:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Wed 11/2612:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 9/10$884
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Wed 11/1212:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Wed 12/1012:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 9/10$885
This oojo deal was found by Cheapflights users on 9/11. 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 12/98:45 amSEA - GMP
2 stops20h 20mJapan Airlines
Tue 12/167:40 pmGMP - SEA
2 stops35h 58mJapan Airlines
Deal found 9/11$887
This oojo deal was found by Cheapflights users on 9/10. 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.
Wed 11/128:24 amSEA - GMP
2 stops20h 41mJapan Airlines
Thu 12/412:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 9/10$893
This oojo deal was found by Cheapflights users on 9/10. 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 9/231:40 pmSEA - GMP
2 stops40h 10mJapan Airlines
Thu 10/97:20 pmGMP - SEA
2 stops35h 35mJapan Airlines
Deal found 9/10$894
This oojo deal was found by Cheapflights users on 9/10. 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.
Wed 12/38:45 amSEA - GMP
2 stops20h 20mJapan Airlines
Sun 12/148:00 amGMP - SEA
2 stops42h 52mJapan Airlines
Deal found 9/10$895
This oojo deal was found by Cheapflights users on 9/11. 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.
Wed 9/248:08 amSEA - GMP
2 stops21h 42mJapan Airlines
Wed 10/2212:05 pmGMP - SEA
2 stops20h 53mJapan Airlines
Deal found 9/11$897

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 September 11, 2025.
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 12/14

6:25 am-10:05 pm

2 stops22h 40m

Seoul Gimpo Intl

Tue 12/16

7:40 pm-9:50 am

1 stop31h 10m

$928

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 2/19

6:00 am-10:05 pm

2 stops23h 05m

Seoul Gimpo Intl

Tue 3/3

8:00 am-4:55 pm

2 stops25h 55m

$939

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 2/19

6:00 am-10:05 pm

2 stops23h 05m

Seoul Gimpo Intl

Mon 3/2

8:00 am-4:55 pm

2 stops25h 55m

$939

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 12/14

6:25 am-10:05 pm

2 stops22h 40m

Seoul Gimpo Intl

Fri 12/19

7:40 pm-9:50 am

1 stop31h 10m

$945

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 12/11

6:25 am-10:05 pm

2 stops22h 40m

Seoul Gimpo Intl

Fri 12/19

8:00 am-9:50 am

1 stop18h 50m

$945

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 2/26

6:00 am-10:05 pm

2 stops23h 05m

Seoul Gimpo Intl

Fri 3/6

8:00 am-11:22 pm

2 stops32h 22m

$951

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 12/11

6:25 am-10:05 pm

2 stops22h 40m

Seoul Gimpo Intl

Mon 12/15

8:00 am-10:25 pm

2 stops31h 25m

$951

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 2/9

6:02 am-10:05 pm

2 stops23h 03m

Seoul Gimpo Intl

Tue 2/17

8:00 am-11:22 pm

2 stops32h 22m

$951

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 11/10

6:20 am-10:05 pm

2 stops22h 45m

Seoul Gimpo Intl

Sat 11/22

8:00 am-10:24 pm

2 stops31h 24m

$951

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Tue 11/11

6:05 am-10:05 pm

2 stops23h 00m

Seoul Gimpo Intl

Wed 11/19

8:00 am-10:24 pm

2 stops31h 24m

$951

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
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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.

Cheapflights Insights

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

What is the cheapest time of day to fly from SEA to GMP?

Find hourly flight availability from Seattle to Gimpo Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Seattle to Seoul Gimpo Intl Airport in the afternoon. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

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 22h 40m. 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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