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$573+ Cheap flights from Gimpo Intl (GMP) to Washington

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Gimpo Intl to Washington

Keep the following information in mind while searching for Gimpo Intl to Washington flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$857
(FlightHub)

One-way from

$573
(FlightHub)

Popular in

August

Cheapest in

September

Average price

$704
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
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From Seoul Gimpo Intl to Washington
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One-way flight from Seoul Gimpo Intl to Washington
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Highest demand for flights based on searches. 6% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Gimpo Intl to Washington

Cheapest flights from Gimpo Intl to Washington
Explore the most affordable flight options available from Gimpo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This FlightHub deal was found by Cheapflights users on 10/29. 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.
Thu 11/2012:25 pmGMP - SEA
1 stop17h 55mANA
Thu 12/410:05 amSEA - GMP
2 stops19h 25mANA
Deal found 10/29$857
This FlightHub deal was found by Cheapflights users on 10/28. 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.
Sat 12/137:45 amGMP - SEA
2 stops28h 31mANA
Wed 12/313:45 pmSEA - GMP
1 stop33h 50mANA
Deal found 10/28$906
This ANA deal was found by Cheapflights users on 10/29. 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.
Tue 12/167:45 amGMP - SEA
1 stop22h 35mANA
Mon 1/53:45 pmSEA - GMP
1 stop26h 35mANA
Deal found 10/29$914
This FlightHub deal was found by Cheapflights users on 10/29. 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.
Mon 11/247:45 amGMP - SEA
1 stop22h 35mANA
Fri 11/2810:05 amSEA - GMP
2 stops19h 25mANA
Deal found 10/29$930
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Thu 12/2512:25 pmGMP - SEA
1 stop17h 55mANA
Mon 1/510:05 amSEA - GMP
2 stops19h 25mANA
Deal found 10/30$1,100
This Ovago deal was found by Cheapflights users on 10/29. 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.
Mon 12/158:00 amGMP - PDX
2 stops25h 50mJapan Airlines
Tue 12/307:15 amPDX - GMP
2 stops21h 50mJapan Airlines
Deal found 10/29$2,036
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:50 amGMP - PDX
2 stops22h 57mMultiple Airlines
Sat 12/209:45 pmPDX - GMP
2 stops31h 20mMultiple Airlines
Deal found 10/29$2,867
This Gotogate deal was found by Cheapflights users on 10/29. 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 12/297:45 amGMP - PDX
2 stops27h 45mANA
Fri 1/99:50 amPDX - GMP
2 stops19h 40mANA
Deal found 10/29$3,667
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:05 pmGMP - PDX
2 stops22h 07mMultiple Airlines
Tue 12/26:00 amPDX - GMP
2 stops23h 05mMultiple Airlines
Deal found 10/29$4,282
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Tue 12/3012:25 pmGMP - PDX
2 stops19h 21mANA
Sat 1/109:50 amPDX - GMP
2 stops19h 40mANA
Deal found 10/30$4,553
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:35 amGMP - PDX
2 stops27h 01mANA
Tue 12/26:00 amPDX - GMP
2 stops23h 30mANA
Deal found 10/30$7,128

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gimpo Intl to Washington 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 October 30, 2025.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington that are best for you.

Fly from

Gimpo Intl

Fly to

Washington

Route

Depart

Return

Price

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 12/16

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Mon 1/5

3:45 pm-11:20 am

1 stop26h 35m

$914

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 2/11

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Tue 2/17

3:45 pm-11:20 am

1 stop26h 35m

$919

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 4/7

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Tue 4/14

5:00 pm-11:05 am

2 stops26h 05m

$962

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 1/13

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Sun 4/12

4:30 pm-11:05 am

1 stop26h 35m

$996

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 1/12

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

Sun 1/18

7:30 pm-11:20 am

2 stops22h 50m

$1,127

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 12/26

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

Fri 1/16

10:05 am-10:30 pm

2 stops19h 25m

$1,153

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sat 12/27

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Mon 1/5

10:05 am-10:30 pm

2 stops19h 25m

$1,183

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Fri 2/20

7:45 am-6:30 pm

2 stops27h 45m

Portland

Mon 2/23

9:50 am-10:30 pm

2 stops19h 40m

$1,184

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sat 12/20

12:25 pm-7:16 pm

2 stops23h 51m

Seattle/Tacoma Intl

Sat 1/10

3:45 pm-11:20 am

1 stop26h 35m

$1,205

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 12/26

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

Wed 12/31

10:05 am-10:30 pm

2 stops19h 25m

$1,251

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 36 results
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Best time to book a flight from Gimpo Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Gimpo Intl 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 Seoul Gimpo Intl Airport to Washington
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seoul Gimpo Intl Airport to State of Washington?

    There are many flights that can get you from Seoul Gimpo Intl Airport to State of Washington in 22h 35m. Fly via ANA or Japan Airlines to get the fastest option. There are 5182 mi between Seoul Gimpo Intl Airport and State of Washington. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gimpo Intl to Washington 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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Alternative routes for Gimpo Intl to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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