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Gimpo Intl

$459+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GMP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This oojo deal was found by Cheapflights users on 12/9. 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 12/1112:10 pmSEA - GMP
1 stop29h 45mJapan Airlines
Sat 2/2812:05 pmGMP - SEA
2 stops23h 35mJapan Airlines
Deal found 12/9$1,106
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Wed 1/77:40 pmGMP - SEA
1 stop31h 15mJapan Airlines
Deal found 12/10$1,118
This oojo deal was found by Cheapflights users on 12/9. 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 12/117:05 amSEA - GMP
2 stops22h 00mMultiple Airlines
Sat 2/2812:05 pmGMP - SEA
2 stops23h 35mMultiple Airlines
Deal found 12/9$1,336
This ANA deal was found by Cheapflights users on 12/9. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/273:40 pmSEA - GMP
1 stop33h 55mANA
Sun 1/257:45 amGMP - SEA
2 stops24h 59mANA
Deal found 12/9$1,450
This FlightHub deal was found by Cheapflights users on 12/10. 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 12/3112:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Thu 1/87:40 pmGMP - SEA
1 stop31h 15mJapan Airlines
Deal found 12/10$1,627
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:40 pmSEA - GMP
1 stop33h 55mANA
Thu 12/187:50 pmGMP - SEA
1 stop34h 30mANA
Deal found 12/11$1,637
This oojo deal was found by Cheapflights users on 12/10. 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.
Mon 12/1512:10 pmSEA - GMP
1 stop29h 45mJapan Airlines
Thu 1/157:40 pmGMP - SEA
2 stops54h 38mJapan Airlines
Deal found 12/10$1,716
This FlightHub deal was found by Cheapflights users on 12/10. 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 12/1412:10 pmSEA - GMP
1 stop29h 45mJapan Airlines
Sat 12/207:40 pmGMP - SEA
1 stop31h 10mJapan Airlines
Deal found 12/10$1,750
This FlightHub deal was found by Cheapflights users on 12/10. 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 12/103:40 pmSEA - GMP
1 stop33h 55mANA
Thu 12/1812:25 pmGMP - SEA
1 stop17h 55mANA
Deal found 12/10$1,754

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$828
(Gotogate)

One-way from

$459
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,183
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. 18% potential increase in price ($227 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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 1/25

12:30 pm-10:05 pm

1 stop16h 35m

Seoul Gimpo Intl

Thu 1/29

7:40 pm-4:47 pm

2 stops38h 07m

$887

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Tue 2/3

8:25 am-10:05 pm

2 stops20h 40m

Seoul Gimpo Intl

Tue 2/17

8:00 am-4:04 pm

2 stops25h 04m

$888

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 1/26

12:30 pm-10:05 pm

1 stop16h 35m

Seoul Gimpo Intl

Wed 1/28

7:40 pm-8:58 am

2 stops54h 18m

$907

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 2/23

8:15 am-10:05 pm

2 stops20h 50m

Seoul Gimpo Intl

Tue 3/3

12:05 pm-4:04 pm

2 stops20h 59m

$919

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 3/30

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Sat 4/11

1:50 pm-7:30 pm

1 stop21h 40m

$957

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 2/2

6:00 am-10:05 pm

2 stops23h 05m

Seoul Gimpo Intl

Mon 2/9

8:00 am-11:59 pm

2 stops32h 59m

$973

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 3/30

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Thu 4/23

8:10 am-7:18 pm

2 stops27h 08m

$1,019

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 2/28

8:15 am-10:05 pm

2 stops20h 50m

Seoul Gimpo Intl

Wed 3/4

8:00 am-4:04 pm

2 stops25h 04m

$1,058

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Thu 2/5

12:30 pm-10:05 pm

1 stop16h 35m

Seoul Gimpo Intl

Mon 2/16

12:05 pm-9:55 am

1 stop14h 50m

$1,060

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 1/3

12:30 pm-10:05 pm

1 stop16h 35m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 21 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 December 12, 2025.

It’s typically best to fly out from Seattle to Seoul Gimpo Intl Airport in the afternoon. Doing so could potentially save you 21% 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 16h 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.

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