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$480+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This YBTour deal was found by Cheapflights users on 1/28. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:00 pm
GMP
-
SEA
2 stops19h 30m
Multiple Airlines
Fri 5/159:55 am
SEA
-
GMP
2 stops20h 30m
Multiple Airlines
Deal found 1/28$663
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/107:50 pm
GMP
-
SEA
1 stop34h 30m
ANA
Tue 2/173:45 pm
SEA
-
GMP
1 stop26h 35m
ANA
Deal found 1/26$898
This FlightHub deal was found by Cheapflights users on 1/27. 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 2/257:45 am
GMP
-
SEA
1 stop22h 35m
ANA
Wed 3/43:45 pm
SEA
-
GMP
1 stop26h 35m
ANA
Deal found 1/27$907
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:40 am
GMP
-
SEA
1 stop22h 45m
ANA
Wed 6/104:30 pm
SEA
-
GMP
1 stop34h 05m
ANA
Deal found 1/28$917
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Fri 12/412:25 pm
GMP
-
SEA
1 stop17h 55m
ANA
Sun 1/310:35 am
SEA
-
GMP
2 stops18h 55m
ANA
Deal found 1/28$927
This ANA deal was found by Cheapflights users on 1/27. 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.
Fri 2/67:45 am
GMP
-
SEA
1 stop22h 35m
ANA
Wed 2/183:45 pm
SEA
-
GMP
1 stop33h 50m
ANA
Deal found 1/27$933
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/512:25 pm
GMP
-
SEA
1 stop17h 55m
ANA
Thu 2/193:45 pm
SEA
-
GMP
1 stop33h 50m
ANA
Deal found 1/26$949
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Tue 6/212:40 pm
GMP
-
SEA
1 stop17h 45m
ANA
Tue 6/164:30 pm
SEA
-
GMP
1 stop34h 05m
ANA
Deal found 1/27$957
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:40 am
GMP
-
SEA
1 stop22h 45m
ANA
Fri 6/54:30 pm
SEA
-
GMP
1 stop26h 35m
ANA
Deal found 1/28$967
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 4/712:05 pm
GMP
-
PDX
2 stops25h 30m
Japan Airlines
Tue 4/217:05 am
PDX
-
GMP
2 stops22h 45m
Japan Airlines
Deal found 1/27$1,224
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 6/307:40 am
GMP
-
PDX
2 stops27h 26m
ANA
Fri 8/147:00 am
PDX
-
GMP
2 stops23h 20m
ANA
Deal found 1/27$1,331
This Japan Airlines 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:00 am
GMP
-
PDX
2 stops25h 50m
Japan Airlines
Sun 2/86:22 pm
PDX
-
GMP
2 stops54h 58m
Japan Airlines
Deal found 1/26$1,384

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$663
(YBTour)

One-way from

$480
(Mytrip)

Popular in

August

Cheapest in

November

Average price

$744
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
Search Deals
From Seoul Gimpo Intl to Washington
Search Deals
One-way flight from Seoul Gimpo Intl to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 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 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 January 29, 2026.
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

Sun 5/3

7:55 pm-2:25 pm

1 stop34h 30m

Seattle/Tacoma Intl

Tue 5/12

4:30 pm-6:35 pm

1 stop34h 05m

$898

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 2/25

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Wed 3/4

3:45 pm-11:20 am

1 stop26h 35m

$907

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 5/15

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Fri 6/5

4:30 pm-11:05 am

1 stop26h 35m

$967

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 2/27

12:25 pm-1:20 pm

1 stop17h 55m

Seattle/Tacoma Intl

Sat 3/7

3:45 pm-11:20 am

1 stop26h 35m

$985

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 2/25

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

Wed 5/27

4:30 pm-11:05 am

1 stop26h 35m

$1,006

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Thu 6/11

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Sat 7/4

4:30 pm-6:35 pm

1 stop34h 05m

$1,011

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 3/2

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

Sun 3/8

4:45 pm-6:35 pm

1 stop33h 50m

$1,015

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sat 5/9

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Fri 5/15

4:30 pm-11:05 am

1 stop26h 35m

$1,056

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 6/2

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Sat 6/6

4:30 pm-6:35 pm

1 stop34h 05m

$1,065

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 3/2

8:25 am-3:01 pm

2 stops23h 36m

Seattle/Tacoma Intl

Sun 3/8

4:45 pm-6:35 pm

1 stop33h 50m

$1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 44 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 25h 30m. Fly via ANA or Japan Airlines to get the fastest option. There are 5254 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.

See more FAQs

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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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