HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gimpo Intl

$599+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Gimpo Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/23. 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 12/29:00 amIAD - GMP
2 stops23h 35mMultiple Airlines
Wed 12/171:30 pmGMP - IAD
2 stops33h 35mMultiple Airlines
Deal found 11/23$1,233
This Trip.com deal was found by Cheapflights users on 11/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:00 pmIAD - GMP
1 stop25h 05mAir China
Tue 12/162:25 pmGMP - IAD
1 stop18h 05mAir China
Deal found 11/24$1,307
This Japan Airlines deal was found by Cheapflights users on 11/23. 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 11/296:02 amBWI - GMP
2 stops26h 03mMultiple Airlines
Tue 12/97:40 pmGMP - BWI
2 stops32h 48mMultiple Airlines
Deal found 11/23$1,339
This Japan Airlines deal was found by Cheapflights users on 11/25. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/306:02 amBWI - GMP
2 stops26h 03mMultiple Airlines
Sun 12/148:00 amGMP - BWI
2 stops28h 54mMultiple Airlines
Deal found 11/25$1,340
This CheapOair deal was found by Cheapflights users on 11/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amBWI - GMP
2 stops46h 20mJapan Airlines
Fri 12/197:40 pmGMP - BWI
2 stops42h 12mJapan Airlines
Deal found 11/24$1,406
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:30 pmIAD - GMP
3 stops29h 35mMultiple Airlines
Sun 12/211:30 pmGMP - IAD
2 stops33h 35mMultiple Airlines
Deal found 11/24$1,547
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:10 amIAD - GMP
2 stops20h 45mMultiple Airlines
Tue 12/22:25 pmGMP - IAD
1 stop18h 05mMultiple Airlines
Deal found 11/24$1,564
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:02 amBWI - GMP
2 stops26h 03mMultiple Airlines
Sun 12/78:00 amGMP - BWI
2 stops20h 24mMultiple Airlines
Deal found 11/26$1,615
This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:30 pmIAD - GMP
3 stops30h 40mMultiple Airlines
Mon 12/221:30 pmGMP - IAD
2 stops33h 35mMultiple Airlines
Deal found 11/25$1,643
This CheapOair deal was found by Cheapflights users on 11/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amBWI - GMP
2 stops50h 05mJapan Airlines
Wed 2/2512:05 pmGMP - BWI
2 stops43h 49mJapan Airlines
Deal found 11/26$1,723
This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:00 amIAD - GMP
2 stops23h 05mMultiple Airlines
Sun 1/188:00 amGMP - IAD
2 stops27h 25mMultiple Airlines
Deal found 11/25$1,820
This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amDCA - GMP
3 stops26h 05mMultiple Airlines
Sun 1/188:00 amGMP - DCA
2 stops28h 35mMultiple Airlines
Deal found 11/25$1,890

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 November 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,183
(CheapOair)

One-way from

$599
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,333
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. 15% potential increase in price ($244 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 26, 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 1/12

6:00 am-6:20 pm

2 stops46h 20m

Seoul Gimpo Intl

Tue 1/20

7:40 pm-11:59 pm

2 stops42h 19m

$1,212

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 11/29

6:02 am-10:05 pm

2 stops26h 03m

Seoul Gimpo Intl

Sat 12/6

8:00 am-9:17 pm

2 stops27h 17m

$1,339

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sun 11/30

6:02 am-10:05 pm

2 stops26h 03m

Seoul Gimpo Intl

Sun 12/14

8:00 am-10:54 pm

2 stops28h 54m

$1,339

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 11/29

6:02 am-10:05 pm

2 stops26h 03m

Seoul Gimpo Intl

Tue 12/9

7:40 pm-2:28 pm

2 stops32h 48m

$1,339

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 12/8

6:00 am-6:20 pm

2 stops46h 20m

Seoul Gimpo Intl

Fri 12/19

7:40 pm-11:52 pm

2 stops42h 12m

$1,406

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 1/17

6:07 am-10:05 pm

2 stops25h 58m

Seoul Gimpo Intl

Sat 1/24

8:00 am-2:49 pm

2 stops20h 49m

$1,412

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 1/17

6:07 am-10:55 am

2 stops38h 48m

Seoul Gimpo Intl

Sun 1/25

8:00 am-2:49 pm

2 stops20h 49m

$1,414

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 2/4

6:00 am-10:05 pm

2 stops50h 05m

Seoul Gimpo Intl

Wed 5/6

7:20 pm-5:40 pm

2 stops35h 20m

$1,503

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 1/7

6:00 am-6:20 pm

2 stops46h 20m

Seoul Gimpo Intl

Wed 1/21

7:40 pm-5:52 pm

2 stops36h 12m

$1,575

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 1/20

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

Wed 2/18

7:50 pm-9:10 am

1 stop27h 20m

$1,616

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 55 results
1
2
3
...
6

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 November.
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 and ANA can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 21h 20m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Gimpo Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Incheon Intl flights
Reagan-National to Incheon Intl flights
Dulles Intl to Gimpo Intl flights
Reagan-National to Gimpo Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.