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Gimpo Intl

$602+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
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 14, 2025.

This Mytrip deal was found by Cheapflights users on 12/12. 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 12/2310:08 pmIAD - GMP
3 stops34h 22mMultiple Airlines
Sun 1/251:30 pmGMP - IAD
2 stops33h 35mMultiple Airlines
Deal found 12/12$1,718
This KAYAK deal was found by Cheapflights users on 12/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:10 amIAD - GMP
1 stop21h 20mANA
Sun 1/187:50 pmGMP - IAD
1 stop27h 20mANA
Deal found 12/13$2,072
This Trip.com deal was found by Cheapflights users on 12/12. 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 12/3011:10 amIAD - GMP
1 stop21h 20mANA
Tue 3/37:50 pmGMP - IAD
1 stop27h 20mANA
Deal found 12/12$2,117
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:00 amBWI - GMP
2 stops38h 55mJapan Airlines
Mon 12/227:40 pmGMP - BWI
2 stops42h 12mJapan Airlines
Deal found 12/14$2,277
This Booking.com deal was found by Cheapflights users on 12/12. 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.
Sun 12/2811:10 amIAD - GMP
1 stop34h 10mMultiple Airlines
Sun 1/188:40 amGMP - IAD
1 stop21h 00mMultiple Airlines
Deal found 12/12$2,281
This KAYAK deal was found by Cheapflights users on 12/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:00 amBWI - GMP
2 stops38h 55mJapan Airlines
Sun 12/287:40 pmGMP - BWI
2 stops37h 49mJapan Airlines
Deal found 12/14$2,290
This Cheapflightsfares deal was found by Cheapflights users on 12/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:10 amIAD - GMP
1 stop21h 20mANA
Sun 1/257:50 pmGMP - IAD
1 stop27h 20mANA
Deal found 12/14$2,378
This Cheapflightsfares deal was found by Cheapflights users on 12/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:10 amIAD - GMP
1 stop21h 20mANA
Mon 1/267:50 pmGMP - IAD
2 stops29h 56mANA
Deal found 12/14$2,388
This FlightHub deal was found by Cheapflights users on 12/12. 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 12/2411:10 amIAD - GMP
1 stop21h 20mANA
Tue 3/37:45 amGMP - IAD
1 stop21h 55mANA
Deal found 12/12$2,429
This Cheapflightsfares deal was found by Cheapflights users on 12/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:10 amIAD - GMP
1 stop21h 20mANA
Sat 1/247:50 pmGMP - IAD
2 stops29h 56mANA
Deal found 12/14$2,436
This CheapOair deal was found by Cheapflights users on 12/11. 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 12/156:00 amBWI - GMP
2 stops50h 05mJapan Airlines
Sat 1/177:40 pmGMP - BWI
2 stops36h 12mJapan Airlines
Deal found 12/11$2,463
This Expedia deal was found by Cheapflights users on 12/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:59 pmDCA - GMP
2 stops49h 56mMultiple Airlines
Fri 12/268:00 amGMP - DCA
2 stops28h 46mMultiple Airlines
Deal found 12/12$2,494

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 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,143
(KAYAK)

One-way from

$602
(Kiwi.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. 3% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($66 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 14, 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

Thu 2/19

6:43 am-6:20 pm

2 stops45h 37m

Seoul Gimpo Intl

Sun 3/8

12:05 pm-5:04 pm

2 stops42h 59m

$1,143

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 1/26

6:07 am-10:05 pm

2 stops25h 58m

Seoul Gimpo Intl

Mon 2/2

7:40 pm-5:52 pm

2 stops36h 12m

$1,248

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 1/12

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 1/19

7:40 pm-5:52 pm

2 stops36h 12m

$1,300

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 1/26

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 2/2

7:40 pm-5:52 pm

2 stops36h 12m

$1,325

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 1/8

6:07 am-10:05 pm

2 stops25h 58m

Seoul Gimpo Intl

Thu 1/15

7:40 pm-2:49 pm

2 stops33h 09m

$1,340

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 2/11

6:07 am-10:05 pm

2 stops25h 58m

Seoul Gimpo Intl

Wed 2/18

7:40 pm-5:54 pm

2 stops36h 14m

$1,345

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 2/16

6:43 am-10:55 am

2 stops38h 12m

Seoul Gimpo Intl

Thu 2/26

7:40 pm-5:54 pm

2 stops36h 14m

$1,354

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 2/2

6:00 am-6:20 pm

2 stops46h 20m

Seoul Gimpo Intl

Thu 2/5

7:40 pm-5:52 pm

2 stops36h 12m

$1,400

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 1/26

9:00 am-10:35 pm

2 stops23h 35m

Seoul Gimpo Intl

Mon 2/2

8:40 am-8:29 pm

2 stops25h 49m

$1,411

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 1/27

9:40 am-10:35 pm

2 stops22h 55m

Seoul Gimpo Intl

Tue 2/3

8:40 am-10:35 pm

2 stops27h 55m

$1,429

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 56 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 and ANA can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 21h 05m. Your travel time can differ by up to 24h 32m. 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, Baltimore/Washington - Seoul Gimpo Intl or Washington, D.C. Reagan-National - 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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