Gimpo Intl

$523+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
Oct 16 — Oct 231
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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 September 16, 2025.

Round-trip from

$1,021
(FlightHub)

One-way from

$523
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,293
From Washington, D.C. (WAS) to Seoul Gimpo Intl
One-way flight from Washington, D.C. (WAS) to Seoul Gimpo Intl
Highest demand for flights based on searches. 16% potential increase in price ($266 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
Average for round-trip flights in September 2025

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 September 16, 2025.

This FlightHub deal was found by Cheapflights users on 9/13. 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 11/1712:11 pmIAD - GMP
2 stops32h 49mChina Eastern
Mon 11/248:50 pmGMP - IAD
2 stops36h 18mChina Eastern
Deal found 9/13$1,021
This FlightHub deal was found by Cheapflights users on 9/13. 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 11/56:05 amDCA - GMP
2 stops38h 55mChina Eastern
Mon 11/108:50 pmGMP - DCA
2 stops35h 10mChina Eastern
Deal found 9/13$1,050
This Japan Airlines deal was found by Cheapflights users on 9/15. 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 9/256:00 amBWI - GMP
2 stops39h 45mJapan Airlines
Thu 10/237:55 amGMP - BWI
2 stops22h 38mJapan Airlines
Deal found 9/15$1,108
This Fareboom deal was found by Cheapflights users on 9/14. 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.
Mon 9/226:00 amBWI - GMP
2 stops39h 45mJapan Airlines
Tue 10/77:20 pmGMP - BWI
2 stops35h 13mJapan Airlines
Deal found 9/14$1,118
This Trip.com deal was found by Cheapflights users on 9/14. 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 10/216:25 amIAD - GMP
2 stops26h 25mMultiple Airlines
Mon 10/278:00 amGMP - IAD
2 stops35h 23mMultiple Airlines
Deal found 9/14$1,205
This Fareboom deal was found by Cheapflights users on 9/15. 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.
Sat 9/206:00 amBWI - GMP
2 stops50h 50mJapan Airlines
Tue 10/77:20 pmGMP - BWI
2 stops35h 13mJapan Airlines
Deal found 9/15$1,219
This FlightHub deal was found by Cheapflights users on 9/14. 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 11/1912:11 pmIAD - GMP
2 stops41h 39mChina Eastern
Mon 11/248:50 pmGMP - IAD
2 stops36h 18mChina Eastern
Deal found 9/14$1,251
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/205:45 pmIAD - GMP
3 stops30h 20mMultiple Airlines
Sat 10/252:25 pmGMP - IAD
3 stops35h 20mMultiple Airlines
Deal found 9/15$1,271
This American Airlines deal was found by Cheapflights users on 9/15. 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 11/116:02 amBWI - GMP
2 stops26h 03mMultiple Airlines
Tue 11/188:00 amGMP - BWI
2 stops20h 30mMultiple Airlines
Deal found 9/15$1,280
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/296:14 amBWI - GMP
2 stops26h 51mMultiple Airlines
Wed 11/58:00 amGMP - BWI
2 stops29h 02mMultiple Airlines
Deal found 9/14$1,301
This Ovago deal was found by Cheapflights users on 9/14. 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 11/276:00 amBWI - GMP
2 stops38h 55mJapan Airlines
Tue 12/27:40 pmGMP - BWI
2 stops35h 06mJapan Airlines
Deal found 9/14$1,306
This Japan Airlines deal was found by Cheapflights users on 9/15. 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 9/2911:23 amBWI - GMP
2 stops34h 22mMultiple Airlines
Sat 10/117:55 amGMP - BWI
2 stops27h 59mMultiple Airlines
Deal found 9/15$1,328

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 September 16, 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

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 11/3

12:09 pm-11:00 am

2 stops32h 51m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-7:08 pm

2 stops36h 18m

$1,021

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 11/5

6:05 am-11:00 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/3

6:05 am-11:00 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/17

11:10 am-11:00 am

2 stops33h 50m

Seoul Gimpo Intl

Mon 11/24

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/10

11:10 am-11:00 am

2 stops33h 50m

Seoul Gimpo Intl

Mon 11/17

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 9/25

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

Thu 10/23

7:55 am-5:33 pm

2 stops22h 38m

$1,108

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/22

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

Tue 10/7

7:20 pm-5:33 pm

2 stops35h 13m

$1,118

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 10/29

6:14 am-10:05 pm

2 stops26h 51m

Seoul Gimpo Intl

Wed 11/5

8:00 am-11:02 pm

2 stops29h 02m

$1,301

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 11/27

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Tue 12/2

7:40 pm-4:46 pm

2 stops35h 06m

$1,306

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/29

11:23 am-10:45 am

2 stops34h 22m

Seoul Gimpo Intl

Sat 10/11

7:55 am-10:54 pm

2 stops27h 59m

$1,328

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 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?

    China Eastern, 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 14h 40m. 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?

  • 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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