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Gimpo Intl

$424+ 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — GMP
feb. 5 — feb. 121
jue. 2/5
jue. 2/12
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 enero 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,132
(Gurufare)

One-way from

$424
(oojo)

Popular in

December

Cheapest in

March

Average price

$1,146
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul Gimpo Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul Gimpo Intl flights.
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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. 5% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 enero 6, 2026.

This Gurufare deal was found by Cheapflights users on 1/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/196:55 amBWI - GMP
2 stops38h 00mJapan Airlines
dom. 3/87:40 pmGMP - BWI
2 stops39h 20mJapan Airlines
Deal found 1/6$1,132
This KAYAK deal was found by Cheapflights users on 1/5. 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.
jue. 2/196:55 amBWI - GMP
2 stops49h 10mJapan Airlines
dom. 3/157:40 pmGMP - BWI
2 stops39h 20mJapan Airlines
Deal found 1/5$1,144
This KAYAK deal was found by Cheapflights users on 1/6. 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.
sáb. 8/296:00 amBWI - GMP
2 stops50h 50mJapan Airlines
vie. 9/187:20 pmGMP - BWI
2 stops41h 12mJapan Airlines
Deal found 1/6$1,151
This Expedia deal was found by Cheapflights users on 1/3. 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.
mié. 2/186:50 amBWI - GMP
2 stops45h 30mJapan Airlines
mié. 2/257:40 pmGMP - BWI
2 stops37h 59mJapan Airlines
Deal found 1/3$1,157
This KAYAK deal was found by Cheapflights users on 1/6. 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.
sáb. 4/117:55 pmBWI - GMP
2 stops25h 50mJapan Airlines
mié. 4/227:55 amGMP - BWI
2 stops28h 52mJapan Airlines
Deal found 1/6$1,172
This Cheapflightsfares deal was found by Cheapflights users on 1/4. 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.
sáb. 4/117:55 pmBWI - GMP
2 stops25h 50mJapan Airlines
jue. 4/237:55 amGMP - BWI
2 stops23h 01mJapan Airlines
Deal found 1/4$1,173
This KAYAK deal was found by Cheapflights users on 1/6. 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.
mié. 4/87:55 pmBWI - GMP
2 stops33h 05mJapan Airlines
mar. 4/217:20 pmGMP - BWI
2 stops41h 27mJapan Airlines
Deal found 1/6$1,187
This KAYAK deal was found by Cheapflights users on 1/5. 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.
mié. 4/87:55 pmBWI - GMP
2 stops33h 05mJapan Airlines
mié. 4/1512:05 pmGMP - BWI
2 stops42h 51mJapan Airlines
Deal found 1/5$1,194
This Cheapflightsfares deal was found by Cheapflights users on 1/3. 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.
mar. 4/147:55 pmBWI - GMP
2 stops25h 50mJapan Airlines
vie. 4/247:55 amGMP - BWI
2 stops23h 01mJapan Airlines
Deal found 1/3$1,195
This KAYAK deal was found by Cheapflights users on 1/6. 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.
mié. 4/87:55 pmBWI - GMP
2 stops25h 50mJapan Airlines
mié. 4/227:55 amGMP - BWI
2 stops28h 52mJapan Airlines
Deal found 1/6$1,200
This KAYAK deal was found by Cheapflights users on 1/6. 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.
mar. 1/206:00 amBWI - GMP
2 stops38h 55mJapan Airlines
vie. 1/307:40 pmGMP - BWI
2 stops42h 12mJapan Airlines
Deal found 1/6$1,201
This oojo deal was found by Cheapflights users on 1/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/2411:00 pmIAD - GMP
1 stop25h 05mAir China
mar. 4/218:35 amGMP - IAD
1 stop23h 55mAir China
Deal found 1/6$1,262

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 enero 6, 2026.
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

jue. 2/19

6:55 am-10:55 am

2 stops38h 00m

Seoul Gimpo Intl

dom. 3/8

7:40 pm-10:00 pm

2 stops39h 20m

$1,132

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

lun. 2/16

6:55 am-10:55 am

2 stops38h 00m

Seoul Gimpo Intl

jue. 3/12

7:40 pm-10:00 pm

2 stops39h 20m

$1,144

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

mié. 2/25

6:50 am-10:55 am

2 stops38h 05m

Seoul Gimpo Intl

dom. 3/15

7:40 pm-10:00 pm

2 stops39h 20m

$1,144

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 2/19

6:55 am-10:05 pm

2 stops49h 10m

Seoul Gimpo Intl

dom. 3/15

7:40 pm-10:00 pm

2 stops39h 20m

$1,144

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

dom. 2/15

6:55 am-10:55 am

2 stops38h 00m

Seoul Gimpo Intl

dom. 3/8

7:40 pm-10:00 pm

2 stops39h 20m

$1,144

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 1/29

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

mié. 2/4

7:40 pm-11:52 pm

2 stops42h 12m

$1,223

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

lun. 1/26

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

mié. 2/4

7:40 pm-11:52 pm

2 stops42h 12m

$1,223

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 1/29

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

dom. 2/8

7:40 pm-11:59 pm

2 stops42h 19m

$1,223

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 2/19

11:53 am-10:55 am

2 stops33h 02m

Seoul Gimpo Intl

jue. 2/26

7:40 pm-7:39 pm

2 stops37h 59m

$1,229

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 3/5

6:55 am-6:20 pm

2 stops45h 25m

Seoul Gimpo Intl

lun. 3/9

7:40 pm-11:33 pm

2 stops40h 53m

$1,301

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 59 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 January.
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 can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 38h. Your travel time can differ by up to . Airlines will cover a distance of 6924 mi.

  • 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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