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Gimpo Intl

$594+ Cheap flights from Dulles Intl (IAD) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GMP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 11, 2025.

Round-trip from

$1,378
(Gurufare)

One-way from

$594
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,182
From Washington, D.C. Dulles Intl to Seoul Gimpo Intl
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One-way flight from Washington, D.C. Dulles Intl to Seoul Gimpo Intl
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Highest demand for flights based on searches. 17% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Gimpo Intl

Cheapest flights from Dulles Intl to Gimpo Intl
Explore the most affordable flight options available from Dulles Intl to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Ovago deal was found by Cheapflights users on 9/9. 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 11/410:00 pmIAD - GMP
1 stop25h 05mAir China
Thu 11/132:25 pmGMP - IAD
2 stops30h 23mAir China
Deal found 9/9$1,374
This Mytrip deal was found by Cheapflights users on 9/9. 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 9/2310:20 pmIAD - GMP
3 stops32h 30mMultiple Airlines
Fri 9/2612:05 pmGMP - IAD
2 stops34h 33mMultiple Airlines
Deal found 9/9$1,385
This Ovago deal was found by Cheapflights users on 9/10. 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 11/2510:00 pmIAD - GMP
1 stop25h 05mAir China
Tue 12/22:25 pmGMP - IAD
2 stops43h 01mAir China
Deal found 9/10$1,402
This oojo deal was found by Cheapflights users on 9/9. 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.
Tue 11/410:00 pmIAD - GMP
1 stop25h 05mAir China
Tue 11/188:35 amGMP - IAD
1 stop23h 55mAir China
Deal found 9/9$1,478
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Fri 10/311:00 pmIAD - GMP
1 stop25h 05mAir China
Fri 10/172:25 pmGMP - IAD
2 stops29h 44mAir China
Deal found 9/10$1,492
This Trip.com deal was found by Cheapflights users on 9/10. 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 stops47h 10mMultiple Airlines
Wed 11/512:25 pmGMP - IAD
2 stops31h 58mMultiple Airlines
Deal found 9/10$1,561
This Orbitz deal was found by Cheapflights users on 9/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:00 amIAD - GMP
2 stops23h 05mMultiple Airlines
Tue 12/27:45 amGMP - IAD
2 stops27h 35mMultiple Airlines
Deal found 9/10$1,578
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/317:43 amIAD - GMP
2 stops38h 37mMultiple Airlines
Fri 12/512:25 pmGMP - IAD
2 stops31h 50mMultiple Airlines
Deal found 9/9$1,585
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 11/1312:40 pmIAD - GMP
2 stops32h 40mANA
Tue 11/257:45 amGMP - IAD
1 stop21h 55mANA
Deal found 9/10$1,611

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Seoul Gimpo Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Gimpo Intl

Route

Depart

Return

Price

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 11/4

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Thu 11/13

2:25 pm-6:48 am

2 stops30h 23m

$1,374

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 11/25

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 12/2

8:35 am-6:30 pm

1 stop23h 55m

$1,598

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/19

11:05 am-10:30 pm

1 stop21h 25m

Seoul Gimpo Intl

Wed 11/26

7:50 pm-9:10 am

1 stop27h 20m

$1,677

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 10/21

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

Wed 11/5

7:50 pm-9:10 am

1 stop27h 20m

$1,708

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/5

11:05 am-10:30 pm

1 stop21h 25m

Seoul Gimpo Intl

Wed 12/3

7:50 pm-9:10 am

1 stop27h 20m

$1,714

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 11/4

11:05 am-10:30 pm

1 stop21h 25m

Seoul Gimpo Intl

Thu 11/13

7:50 pm-9:10 am

1 stop27h 20m

$1,723

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/12

11:05 am-10:30 pm

1 stop21h 25m

Seoul Gimpo Intl

Thu 11/20

7:50 pm-9:10 am

1 stop27h 20m

$1,724

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/5

11:05 am-11:20 am

1 stop34h 15m

Seoul Gimpo Intl

Thu 11/13

7:50 pm-7:21 am

2 stops25h 31m

$1,734

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 9/29

6:25 am-9:50 pm

2 stops26h 25m

Seoul Gimpo Intl

Thu 10/16

7:55 am-10:51 pm

2 stops27h 56m

$1,758

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/12

12:40 pm-11:20 am

2 stops32h 40m

Seoul Gimpo Intl

Thu 11/20

3:45 pm-9:10 am

1 stop31h 25m

$1,885

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
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Best time to book a flight from Dulles Intl to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Dulles Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Seoul Gimpo Intl Airport?

    A quick flight from Washington, D.C. Dulles Intl Airport to Seoul Gimpo Intl Airport can take about 21h 25m. Air China provides one of the quickest options available for as low as $1,677. Washington, D.C. Dulles Intl Airport and Seoul Gimpo Intl Airport are separated by a distance of 6925 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Dulles Intl to Gimpo Intl that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Gimpo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Gimpo Intl.

  • Can I find deals for business class flights from Dulles Intl to Gimpo Intl?

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Dulles Intl to Gimpo Intl

See prices for flight routes from nearby airports that may be better suited for you.
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