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 05m. ANA provides one of the quickest options available for as low as $1,586. Washington, D.C. Dulles Intl Airport and Seoul Gimpo Intl Airport are separated by a distance of 6925 mi.

In terms of precipitation, rainfall in Seoul Gimpo Intl Airport ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul Gimpo Intl Airport when rainfall is around 1.1 in.

If weather is an important factor for your trip to Seoul Gimpo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from IAD to GMP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Seoul Gimpo Intl Airport as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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. Dulles Intl Airport-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. Dulles Intl Airport-Seoul Gimpo Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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. Dulles Intl Airport-Seoul Gimpo Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$614+ Flights from Washington, D.C. Dulles Intl Airport to Seoul Gimpo Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl 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.

Cheap 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 diciembre 12, 2025.

mar. 12/2310:06 pmIAD - GMP

3 stops34h 24mMultiple Airlines

lun. 1/261:30 pmGMP - IAD

2 stops33h 35mMultiple Airlines

Deal found 12/10

$1,839

vie. 12/125:05 pmIAD - GMP

3 stops30h 00mMultiple Airlines

mar. 12/231:30 pmGMP - IAD

2 stops33h 35mMultiple Airlines

Deal found 12/9

$2,031

mié. 12/2411:10 amIAD - GMP

1 stop21h 20mANA

lun. 1/267:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 12/10

$2,243

jue. 12/115:05 pmIAD - GMP

3 stops30h 00mMultiple Airlines

lun. 12/158:50 amGMP - IAD

3 stops25h 36mMultiple Airlines

Deal found 12/9

$2,261

sáb. 12/135:05 pmIAD - GMP

3 stops31h 05mMultiple Airlines

lun. 12/157:50 pmGMP - IAD

2 stops38h 36mMultiple Airlines

Deal found 12/10

$2,424

jue. 12/117:34 amIAD - GMP

2 stops37h 21mJapan Airlines

lun. 12/158:00 amGMP - IAD

2 stops36h 06mJapan Airlines

Deal found 12/9

$2,427

sáb. 12/137:34 amIAD - GMP

2 stops24h 31mJapan Airlines

lun. 12/1512:05 pmGMP - IAD

2 stops32h 01mJapan Airlines

Deal found 12/10

$2,573

vie. 12/1210:10 pmIAD - GMP

2 stops48h 55mAir China

mar. 12/238:50 amGMP - IAD

1 stop23h 40mAir China

Deal found 12/9

$2,586

Best flights from Dulles Intl to Gimpo Intl
Discover carefully curated flight deals from Dulles Intl to Gimpo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 12, 2025.

lun. 4/2712:15 pmIAD - GMP

1 stop21h 05mANA

mar. 6/1612:40 pmGMP - IAD

1 stop34h 25mANA

Deal found 12/11

$1,586

mar. 4/2112:15 pmIAD - GMP

1 stop21h 05mMultiple Airlines

mié. 5/67:55 pmGMP - IAD

2 stops23h 41mMultiple Airlines

Deal found 12/10

$1,682

jue. 4/912:15 pmIAD - GMP

1 stop21h 05mANA

mar. 7/77:40 amGMP - IAD

2 stops35h 23mANA

Deal found 12/10

$1,632

lun. 2/211:10 amIAD - GMP

1 stop21h 20mMultiple Airlines

lun. 2/97:50 pmGMP - IAD

2 stops23h 34mMultiple Airlines

Deal found 12/10

$1,682

lun. 1/2611:10 amIAD - GMP

1 stop21h 20mANA

mar. 2/37:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 12/10

$1,649

dom. 3/111:10 amIAD - GMP

1 stop21h 20mANA

mar. 3/317:40 amGMP - IAD

1 stop21h 00mANA

Deal found 12/11

$1,658

vie. 2/2011:10 amIAD - GMP

1 stop21h 20mANA

dom. 3/87:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 12/10

$1,670

mar. 4/211:05 pmIAD - GMP

2 stops33h 00mANA

mar. 4/287:40 amGMP - IAD

1 stop21h 00mANA

Deal found 12/9

$1,672

mié. 3/411:10 amIAD - GMP

1 stop21h 20mANA

mié. 6/37:55 pmGMP - IAD

1 stop27h 10mANA

Deal found 12/11

$1,672

lun. 3/3012:15 pmIAD - GMP

1 stop21h 05mANA

mié. 4/2212:40 pmGMP - IAD

1 stop34h 25mANA

Deal found 12/11

$1,672

mié. 2/411:10 amIAD - GMP

1 stop21h 20mANA

mié. 5/612:40 pmGMP - IAD

1 stop34h 25mANA

Deal found 12/11

$1,672

lun. 1/2611:10 amIAD - GMP

1 stop34h 10mANA

lun. 2/212:25 pmGMP - IAD

1 stop34h 45mANA

Deal found 12/11

$1,673

Last-minute flights from Dulles Intl to Gimpo Intl
Discover last-minute flight deals from Dulles Intl to Gimpo Intl. Data last updated diciembre 12, 2025 and is based on user searches.

mié. 1/711:10 amIAD - GMP

1 stop21h 20mANA

mar. 1/207:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 12/9

$1,587

jue. 1/85:30 pmIAD - GMP

3 stops29h 35mMultiple Airlines

jue. 1/158:00 amGMP - IAD

2 stops26h 54mMultiple Airlines

Deal found 12/11

$1,579

jue. 1/81:05 pmIAD - GMP

2 stops32h 15mANA

jue. 1/1512:25 pmGMP - IAD

1 stop17h 15mANA

Deal found 12/11

$1,648

vie. 1/99:00 amIAD - GMP

2 stops23h 35mMultiple Airlines

vie. 1/168:40 amGMP - IAD

2 stops25h 46mMultiple Airlines

Deal found 12/10

$1,551

mar. 1/1310:00 pmIAD - GMP

1 stop25h 05mAir China

vie. 1/232:25 pmGMP - IAD

1 stop18h 05mAir China

Deal found 12/11

$1,220

mar. 1/139:15 pmIAD - GMP

2 stops26h 55mMultiple Airlines

vie. 1/232:25 pmGMP - IAD

1 stop18h 05mMultiple Airlines

Deal found 12/11

$1,481

jue. 1/159:00 amIAD - GMP

2 stops23h 05mMultiple Airlines

sáb. 1/318:00 amGMP - IAD

2 stops26h 26mMultiple Airlines

Deal found 12/11

$1,653

mar. 1/2010:00 pmIAD - GMP

1 stop25h 05mAir China

vie. 3/278:50 amGMP - IAD

1 stop23h 40mAir China

Deal found 12/10

$1,569

dom. 1/259:00 amIAD - GMP

2 stops23h 05mMultiple Airlines

dom. 2/18:00 amGMP - IAD

2 stops26h 29mMultiple Airlines

Deal found 12/10

$1,482

dom. 1/259:15 pmIAD - GMP

2 stops26h 55mMultiple Airlines

vie. 1/302:25 pmGMP - IAD

1 stop18h 05mMultiple Airlines

Deal found 12/11

$1,503

lun. 1/2611:10 amIAD - GMP

1 stop21h 20mANA

mar. 2/37:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 12/10

$1,649

One-way flights from Dulles Intl to Gimpo Intl
Search for one-way flight options from Dulles Intl to Gimpo Intl. Find affordable one-way fares based on user searches. Data last updated diciembre 12, 2025.

mar. 1/67:33 amIAD - GMP

3 stops39h 27mMultiple Airlines

Deal found 12/11

$614

jue. 1/155:30 pmIAD - GMP

3 stops54h 40mMultiple Airlines

Deal found 12/11

$662

jue. 3/57:05 amIAD - GMP

2 stops39h 45mEVA Air

Deal found 12/11

$693

mié. 1/146:04 pmIAD - GMP

3 stops55h 46mMultiple Airlines

Deal found 12/11

$700

mar. 4/217:01 pmIAD - GMP

3 stops38h 24mMultiple Airlines

Deal found 12/10

$718

mié. 1/76:10 pmIAD - GMP

3 stops54h 00mMultiple Airlines

Deal found 12/11

$727

Find flight deals from Dulles Intl to Gimpo Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$1,220 (oojo)
One-way from	$614 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$2,169

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Seoul Gimpo Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Seoul Gimpo Intl flights.

Search Deals

From Washington, D.C. Dulles Intl to Seoul Gimpo Intl

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Seoul Gimpo Intl

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($42 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

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

lun. 4/27

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

mar. 6/16

12:40 pm-10:05 am

1 stop34h 25m

$1,586

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

jue. 4/9

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

mar. 7/7

7:40 am-6:03 am

2 stops35h 23m

$1,632

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

lun. 1/26

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

mar. 2/3

7:50 pm-9:10 am

1 stop27h 20m

$1,649

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

dom. 3/1

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

mar. 3/31

7:40 am-3:40 pm

1 stop21h 00m

$1,658

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

vie. 2/20

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

dom. 3/8

7:50 pm-10:10 am

1 stop27h 20m

$1,670

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

mar. 4/21

1:05 pm-11:05 am

2 stops33h 00m

Seoul Gimpo Intl

mar. 4/28

7:40 am-3:40 pm

1 stop21h 00m

$1,672

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

mié. 3/4

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

mié. 6/3

7:55 pm-10:05 am

1 stop27h 10m

$1,672

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

lun. 3/30

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

mié. 4/22

12:40 pm-10:05 am

1 stop34h 25m

$1,672

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

mié. 2/4

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

mié. 5/6

12:40 pm-10:05 am

1 stop34h 25m

$1,672

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

lun. 1/26

11:10 am-11:20 am

1 stop34h 10m

Seoul Gimpo Intl

lun. 2/2

12:25 pm-9:10 am

1 stop34h 45m

$1,673

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 22 results

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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. Dulles Intl Airport-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. Dulles Intl Airport-Seoul Gimpo Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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. Dulles Intl Airport-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 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

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 05m. ANA provides one of the quickest options available for as low as $1,586. Washington, D.C. Dulles Intl Airport and Seoul Gimpo Intl Airport are separated by a distance of 6925 mi.
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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Gimpo Intl

Dulles Intl to Incheon Intl flights

Reagan-National to Incheon Intl flights

Baltimore to Incheon Intl flights

Baltimore to Gimpo Intl flights

Reagan-National to Gimpo Intl flights

Other flights to Gimpo Intl

Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Busan flights

Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Busan flights

Seoul Gimpo Intl Airport to Osaka Kansai Intl Airport flights

Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Shanghai Hongqiao Intl Airport flights

Seoul Gimpo Intl Airport to Osaka Kansai Intl Airport flights

Seoul Gimpo Intl Airport to Shanghai Hongqiao Intl Airport flights

Seoul Gimpo Intl Airport to Tokyo Haneda Airport flights

Seoul Gimpo Intl Airport to Shanghai Hongqiao Intl Airport 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.

$614+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Gimpo Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Gimpo Intl

Cheapest flights from Dulles Intl to Gimpo IntlExplore 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 diciembre 12, 2025.

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 diciembre 12, 2025.

Find flight deals from Dulles Intl to Gimpo Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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.

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.

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?

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

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

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

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 Dulles Intl to Gimpo Intl

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

100% Free

Book with Flexibility

Travel Smart

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 diciembre 12, 2025.