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Gimpo Intl

$488+ Cheap flights from Washington, D.C. (WAS) 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 August 28, 2025.

Round-trip from

$1,054
(American Airlines)

One-way from

$488
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,764
From Washington, D.C. (WAS) to Seoul Gimpo Intl
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One-way flight from Washington, D.C. (WAS) to Seoul Gimpo Intl
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Highest demand for flights based on searches. 17% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Washington, D.C. to Gimpo Intl

Cheapest flights from Washington, D.C. to Gimpo Intl
Explore the most affordable flight options available from Washington, D.C. to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.

This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:41 amBWI - GMP
2 stops26h 09mMultiple Airlines
Sun 9/147:55 amGMP - BWI
2 stops28h 23mMultiple Airlines
Deal found 8/27$1,054
This Mytrip deal was found by Cheapflights users on 8/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:20 pmBWI - GMP
3 stops34h 45mMultiple Airlines
Mon 12/12:25 pmGMP - BWI
2 stops28h 41mMultiple Airlines
Deal found 8/28$1,178
This Japan Airlines deal was found by Cheapflights users on 8/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:00 amBWI - GMP
2 stops38h 55mJapan Airlines
Mon 11/177:40 pmGMP - BWI
2 stops35h 00mJapan Airlines
Deal found 8/28$1,257
This Japan Airlines deal was found by Cheapflights users on 8/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:13 pmBWI - GMP
2 stops27h 32mMultiple Airlines
Thu 11/208:00 amGMP - BWI
2 stops25h 07mMultiple Airlines
Deal found 8/28$1,269
This Japan Airlines deal was found by Cheapflights users on 8/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:13 pmBWI - GMP
2 stops27h 32mMultiple Airlines
Thu 11/138:00 amGMP - BWI
2 stops24h 13mMultiple Airlines
Deal found 8/28$1,277
This Japan Airlines deal was found by Cheapflights users on 8/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:20 pmBWI - GMP
2 stops34h 40mMultiple Airlines
Fri 9/267:55 amGMP - BWI
2 stops28h 06mMultiple Airlines
Deal found 8/28$1,301
This Japan Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 9/96:20 pmBWI - GMP
2 stops27h 25mMultiple Airlines
Tue 9/167:55 amGMP - BWI
2 stops22h 55mMultiple Airlines
Deal found 8/26$1,302
This Trip.com deal was found by Cheapflights users on 8/27. 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.
Mon 10/136:25 amIAD - GMP
2 stops26h 25mMultiple Airlines
Wed 11/1212:05 pmGMP - IAD
2 stops32h 18mMultiple Airlines
Deal found 8/27$1,304
This CheapOair deal was found by Cheapflights users on 8/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:00 amBWI - GMP
2 stops39h 45mJapan Airlines
Sat 9/277:55 amGMP - BWI
2 stops22h 55mJapan Airlines
Deal found 8/28$1,308
This Fareboom deal was found by Cheapflights users on 8/28. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:53 amBWI - GMP
2 stops39h 52mJapan Airlines
Wed 10/157:55 amGMP - BWI
2 stops22h 38mJapan Airlines
Deal found 8/28$1,319
This Gotogate deal was found by Cheapflights users on 8/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/219:45 amIAD - GMP
2 stops23h 05mMultiple Airlines
Mon 9/297:55 amGMP - IAD
2 stops26h 10mMultiple Airlines
Deal found 8/26$1,333
This Mytrip deal was found by Cheapflights users on 8/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:20 amIAD - GMP
2 stops22h 15mMultiple Airlines
Tue 9/162:00 pmGMP - IAD
3 stops32h 38mMultiple Airlines
Deal found 8/26$1,344

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 August 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Seoul Gimpo Intl Airport that are best for you.

Fly from

Washington, D.C.

Fly to

Gimpo Intl

Route

Depart

Return

Price

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/8

6:41 am-9:50 pm

2 stops26h 09m

Seoul Gimpo Intl

Sun 9/14

7:55 am-11:18 pm

2 stops28h 23m

$1,054

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 11/24

12:20 pm-1:05 pm

3 stops34h 45m

Seoul Gimpo Intl

Mon 12/1

2:25 pm-5:06 am

2 stops28h 41m

$1,178

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 2/2

7:49 am-10:55 am

2 stops37h 06m

Seoul Gimpo Intl

Mon 2/16

12:05 pm-5:38 pm

2 stops43h 33m

$1,207

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 11/10

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 11/17

7:40 pm-4:40 pm

2 stops35h 00m

$1,257

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 10/23

6:13 pm-10:45 am

2 stops27h 32m

Seoul Gimpo Intl

Thu 11/20

8:00 am-7:07 pm

2 stops25h 07m

$1,269

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 10/15

6:13 pm-10:45 am

2 stops27h 32m

Seoul Gimpo Intl

Thu 11/13

8:00 am-6:13 pm

2 stops24h 13m

$1,277

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 9/13

6:20 pm-6:00 pm

2 stops34h 40m

Seoul Gimpo Intl

Fri 9/26

7:55 am-11:01 pm

2 stops28h 06m

$1,301

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Tue 9/9

6:20 pm-10:45 am

2 stops27h 25m

Seoul Gimpo Intl

Tue 9/16

7:55 am-5:50 pm

2 stops22h 55m

$1,302

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 10/13

6:25 am-9:50 pm

2 stops26h 25m

Seoul Gimpo Intl

Wed 11/12

12:05 pm-6:23 am

2 stops32h 18m

$1,304

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/22

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

Sat 9/27

7:55 am-5:50 pm

2 stops22h 55m

$1,308

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Showing 1-10 of 58 results
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Best time to book a flight from Washington, D.C. to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Washington, D.C. 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 Washington, D.C. to Seoul Gimpo Intl Airport
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 Washington, D.C. to Gimpo Intl. 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 Washington, D.C. to Seoul Gimpo Intl Airport?

    Japan Airlines and Air China can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 25h 05m. Your travel time can differ by up to 12h 01m. Airlines will cover a distance of 6925 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to Seoul Gimpo Intl Airport?

    Most travelers choose Washington, D.C. Dulles Intl - Seoul Gimpo Intl, Washington, D.C. Reagan-National - Seoul Gimpo Intl or Baltimore/Washington - Seoul Gimpo Intl when deciding on the best route from Washington, D.C. to Seoul Gimpo Intl Airport.

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

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

  • How can I find direct flights from Washington, D.C. to Gimpo Intl?

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

  • Can I find deals for business class flights from Washington, D.C. to Gimpo Intl?

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

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