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Gimpo Intl

$427+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap 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 December 28, 2025.

This Mytrip deal was found by Cheapflights users on 12/26. 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.
Wed 12/319:45 amIAD - GMP
3 stops35h 05mMultiple Airlines
Tue 1/62:25 pmGMP - IAD
1 stop18h 05mMultiple Airlines
Deal found 12/26$2,273
This Cheapflightsfares deal was found by Cheapflights users on 12/24. 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.
Mon 12/294:50 pmDCA - GMP
2 stops35h 30mJapan Airlines
Mon 1/128:00 amGMP - DCA
2 stops26h 44mJapan Airlines
Deal found 12/24$2,436
This Travelocity deal was found by Cheapflights users on 12/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:30 pmIAD - GMP
2 stops39h 35mMultiple Airlines
Sat 1/107:50 pmGMP - IAD
2 stops57h 56mMultiple Airlines
Deal found 12/26$2,495
This Booking.com deal was found by Cheapflights users on 12/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:10 amIAD - GMP
1 stop21h 20mANA
Sun 1/1812:25 pmGMP - IAD
1 stop34h 45mANA
Deal found 12/26$2,590
This Ovago deal was found by Cheapflights users on 12/24. 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 12/2911:10 amIAD - GMP
1 stop21h 20mMultiple Airlines
Mon 1/128:40 amGMP - IAD
1 stop21h 00mMultiple Airlines
Deal found 12/24$2,667
This Ovago deal was found by Cheapflights users on 12/25. 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.
Tue 12/3011:10 amIAD - GMP
1 stop21h 20mMultiple Airlines
Tue 1/68:40 amGMP - IAD
1 stop21h 00mMultiple Airlines
Deal found 12/25$2,668
This Ovago deal was found by Cheapflights users on 12/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:10 amIAD - GMP
1 stop21h 20mANA
Sat 1/1012:25 pmGMP - IAD
1 stop17h 15mANA
Deal found 12/26$2,852
This Air China deal was found by Cheapflights users on 12/25. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 amIAD - GMP
2 stops41h 40mAir China
Tue 1/62:25 pmGMP - IAD
1 stop18h 05mAir China
Deal found 12/25$2,855
This KAYAK deal was found by Cheapflights users on 12/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:00 pmDCA - GMP
2 stops32h 20mANA
Wed 1/712:25 pmGMP - DCA
2 stops37h 33mANA
Deal found 12/25$2,922
This KAYAK deal was found by Cheapflights users on 12/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:44 amBWI - GMP
2 stops34h 36mANA
Wed 1/77:50 pmGMP - BWI
2 stops32h 21mANA
Deal found 12/25$3,102
This KAYAK deal was found by Cheapflights users on 12/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:00 pmDCA - GMP
2 stops32h 20mANA
Tue 1/67:50 pmGMP - DCA
2 stops30h 08mANA
Deal found 12/25$3,272
This KAYAK deal was found by Cheapflights users on 12/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:44 amBWI - GMP
2 stops34h 36mANA
Tue 1/67:50 pmGMP - BWI
2 stops32h 21mANA
Deal found 12/25$3,452

Find 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 December 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,156
(Expedia)

One-way from

$427
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$2,169
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul Gimpo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul Gimpo Intl flights.
Search Deals
From Washington, D.C. (WAS) to Seoul Gimpo Intl
Search Deals
One-way flight from Washington, D.C. (WAS) to Seoul Gimpo Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($65 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 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 December 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

Sun 1/25

6:00 am-10:05 pm

2 stops50h 05m

Seoul Gimpo Intl

Wed 1/28

7:40 pm-11:52 pm

2 stops42h 12m

$1,307

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 1/17

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Thu 1/22

8:00 am-2:49 pm

2 stops20h 49m

$1,309

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sun 1/18

9:00 am-10:55 am

2 stops35h 55m

Seoul Gimpo Intl

Thu 1/22

8:00 am-2:49 pm

2 stops20h 49m

$1,319

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 1/17

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Thu 1/22

8:00 am-2:49 pm

2 stops20h 49m

$1,419

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Fri 1/23

9:40 am-10:05 pm

2 stops22h 25m

Seoul Gimpo Intl

Fri 1/30

8:00 am-10:35 pm

2 stops28h 35m

$1,470

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Fri 4/24

11:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Fri 5/22

8:35 am-7:30 pm

1 stop23h 55m

$1,500

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Fri 2/20

6:43 am-10:05 pm

2 stops25h 22m

Seoul Gimpo Intl

Fri 2/27

8:00 am-2:26 pm

2 stops20h 26m

$1,582

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Fri 1/23

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Wed 2/4

12:05 pm-5:57 pm

2 stops43h 52m

$1,609

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 1/24

6:07 am-10:05 pm

2 stops25h 58m

Seoul Gimpo Intl

Tue 2/3

8:00 am-2:49 pm

2 stops20h 49m

$1,615

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 3/4

2:00 pm-11:20 am

2 stops31h 20m

Seoul Gimpo Intl

Wed 6/3

7:55 pm-1:59 pm

2 stops31h 04m

$1,636

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 58 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Gimpo Intl in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Washington, D.C.-Seoul Gimpo Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Seoul Gimpo Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Seoul Gimpo Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Washington, D.C.-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 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, Air China, and ANA 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 25h. 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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