How long is the flight from Washington, D.C. to Seoul Gimpo Intl Airport?

China Eastern, Japan Airlines, and Air China can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 25h 05m. Your travel time can differ by up to 14h 40m. 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 is the cheapest day to fly from Washington, D.C. to Seoul Gimpo Intl Airport?

Travelers seeking maximum savings on their Washington, D.C. to Seoul Gimpo Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 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.

What is the cheapest time of day to fly from WAS 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. to Seoul Gimpo Intl Airport as you normally would.

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.

$523+ Cheap Flights from Washington, D.C. to Seoul Gimpo Intl Airport

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Cheap flight deals from Washington, D.C. to Gimpo Intl

Round-trip from	$1,021 (FlightHub)
One-way from	$523 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,293

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. 16% potential increase in price ($266 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($43 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 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 September 16, 2025.

Mon 11/1712:11 pmIAD - GMP

2 stops32h 49mChina Eastern

Mon 11/248:50 pmGMP - IAD

2 stops36h 18mChina Eastern

Deal found 9/13

$1,021

Wed 11/56:05 amDCA - GMP

2 stops38h 55mChina Eastern

Mon 11/108:50 pmGMP - DCA

2 stops35h 10mChina Eastern

Deal found 9/13

$1,050

Thu 9/256:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Thu 10/237:55 amGMP - BWI

2 stops22h 38mJapan Airlines

Deal found 9/15

$1,108

Mon 9/226:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Tue 10/77:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/14

$1,118

Tue 10/216:25 amIAD - GMP

2 stops26h 25mMultiple Airlines

Mon 10/278:00 amGMP - IAD

2 stops35h 23mMultiple Airlines

Deal found 9/14

$1,205

Sat 9/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Tue 10/77:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/15

$1,219

Wed 11/1912:11 pmIAD - GMP

2 stops41h 39mChina Eastern

Mon 11/248:50 pmGMP - IAD

2 stops36h 18mChina Eastern

Deal found 9/14

$1,251

Mon 10/205:45 pmIAD - GMP

3 stops30h 20mMultiple Airlines

Sat 10/252:25 pmGMP - IAD

3 stops35h 20mMultiple Airlines

Deal found 9/15

$1,271

Tue 11/116:02 amBWI - GMP

2 stops26h 03mMultiple Airlines

Tue 11/188:00 amGMP - BWI

2 stops20h 30mMultiple Airlines

Deal found 9/15

$1,280

Wed 10/296:14 amBWI - GMP

2 stops26h 51mMultiple Airlines

Wed 11/58:00 amGMP - BWI

2 stops29h 02mMultiple Airlines

Deal found 9/14

$1,301

Thu 11/276:00 amBWI - GMP

2 stops38h 55mJapan Airlines

Tue 12/27:40 pmGMP - BWI

2 stops35h 06mJapan Airlines

Deal found 9/14

$1,306

Mon 9/2911:23 amBWI - GMP

2 stops34h 22mMultiple Airlines

Sat 10/117:55 amGMP - BWI

2 stops27h 59mMultiple Airlines

Deal found 9/15

$1,328

Best flights from Washington, D.C. to Gimpo Intl
Discover carefully curated flight deals from Washington, D.C. to Gimpo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Mon 11/312:09 pmIAD - GMP

2 stops32h 51mChina Eastern

Mon 11/108:50 pmGMP - IAD

2 stops36h 18mChina Eastern

Deal found 9/13

$1,021

Thu 9/256:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Thu 10/237:55 amGMP - BWI

2 stops22h 38mJapan Airlines

Deal found 9/15

$1,108

Wed 10/296:14 amBWI - GMP

2 stops26h 51mMultiple Airlines

Wed 11/58:00 amGMP - BWI

2 stops29h 02mMultiple Airlines

Deal found 9/14

$1,301

Tue 11/1810:00 pmIAD - GMP

1 stop25h 05mAir China

Tue 11/258:35 amGMP - IAD

1 stop23h 55mAir China

Deal found 9/13

$1,465

Wed 3/111:05 pmIAD - GMP

2 stops33h 15mANA

Wed 4/87:55 pmGMP - IAD

1 stop27h 10mANA

Deal found 9/15

$1,611

Wed 11/56:05 amDCA - GMP

2 stops38h 55mChina Eastern

Mon 11/108:50 pmGMP - DCA

2 stops35h 10mChina Eastern

Deal found 9/13

$1,050

Mon 9/226:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Tue 10/77:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/14

$1,118

Mon 11/36:05 amDCA - GMP

2 stops38h 55mChina Eastern

Mon 11/108:50 pmGMP - DCA

2 stops35h 10mChina Eastern

Deal found 9/13

$1,050

Mon 11/1711:10 amDCA - GMP

2 stops33h 50mChina Eastern

Mon 11/248:50 pmGMP - DCA

2 stops35h 10mChina Eastern

Deal found 9/13

$1,050

Mon 9/2911:23 amBWI - GMP

2 stops34h 22mMultiple Airlines

Sat 10/117:55 amGMP - BWI

2 stops27h 59mMultiple Airlines

Deal found 9/15

$1,328

Mon 11/1011:10 amDCA - GMP

2 stops33h 50mChina Eastern

Mon 11/178:50 pmGMP - DCA

2 stops35h 10mChina Eastern

Deal found 9/13

$1,050

Thu 11/276:00 amBWI - GMP

2 stops38h 55mJapan Airlines

Tue 12/27:40 pmGMP - BWI

2 stops35h 06mJapan Airlines

Deal found 9/14

$1,306

Sat 12/66:02 amBWI - GMP

2 stops26h 03mMultiple Airlines

Sun 12/147:40 pmGMP - BWI

2 stops35h 06mMultiple Airlines

Deal found 9/14

$1,346

Mon 2/211:05 amIAD - GMP

1 stop21h 25mANA

Mon 2/97:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 9/14

$1,651

Thu 10/165:37 pmBWI - GMP

3 stops30h 13mMultiple Airlines

Fri 10/241:50 pmGMP - BWI

2 stops29h 45mMultiple Airlines

Deal found 9/15

$1,375

Fri 2/2711:05 amIAD - GMP

1 stop21h 25mANA

Sun 3/87:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 9/14

$1,651

Mon 11/106:02 amBWI - GMP

2 stops26h 03mMultiple Airlines

Mon 11/178:00 amGMP - BWI

2 stops29h 02mMultiple Airlines

Deal found 9/14

$1,379

Sat 11/296:00 amBWI - GMP

2 stops38h 55mJapan Airlines

Wed 12/107:40 pmGMP - BWI

2 stops37h 19mJapan Airlines

Deal found 9/15

$1,533

Thu 3/1212:10 pmIAD - GMP

1 stop21h 20mANA

Wed 4/112:40 pmGMP - IAD

1 stop34h 25mANA

Deal found 9/16

$1,674

Sun 11/96:02 amBWI - GMP

2 stops26h 03mMultiple Airlines

Fri 11/148:00 amGMP - BWI

2 stops20h 30mMultiple Airlines

Deal found 9/14

$1,423

Tue 2/311:05 amIAD - GMP

1 stop21h 25mANA

Thu 2/127:45 amGMP - IAD

1 stop21h 55mANA

Deal found 9/15

$1,674

Wed 10/293:30 pmDCA - GMP

2 stops30h 50mANA

Wed 11/57:50 pmGMP - DCA

2 stops30h 08mANA

Deal found 9/14

$1,679

Tue 2/106:59 amDCA - GMP

2 stops25h 06mJapan Airlines

Wed 2/1812:05 pmGMP - DCA

2 stops38h 45mJapan Airlines

Deal found 9/16

$1,851

Tue 2/39:40 amDCA - GMP

2 stops22h 50mMultiple Airlines

Thu 2/128:00 amGMP - DCA

2 stops22h 26mMultiple Airlines

Deal found 9/14

$1,602

Sun 3/1512:10 pmIAD - GMP

1 stop21h 20mANA

Mon 3/237:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 9/14

$1,701

Mon 10/2712:10 pmIAD - GMP

1 stop34h 10mMultiple Airlines

Mon 11/107:45 amGMP - IAD

2 stops22h 37mMultiple Airlines

Deal found 9/14

$1,683

Wed 11/1211:05 amIAD - GMP

1 stop21h 25mANA

Wed 11/197:50 pmGMP - IAD

1 stop27h 20mANA

Deal found 9/15

$1,713

Tue 11/256:00 pmIAD - GMP

3 stops29h 05mMultiple Airlines

Sat 11/291:45 pmGMP - IAD

2 stops32h 35mMultiple Airlines

Deal found 9/15

$1,695

Wed 10/299:21 amDCA - GMP

2 stops23h 44mMultiple Airlines

Wed 11/58:00 amGMP - DCA

2 stops21h 55mMultiple Airlines

Deal found 9/14

$1,760

Tue 10/146:38 amDCA - GMP

2 stops26h 12mMultiple Airlines

Tue 10/217:55 amGMP - DCA

2 stops21h 31mMultiple Airlines

Deal found 9/16

$1,834

Last-minute flights from Washington, D.C. to Gimpo Intl
Discover last-minute flight deals from Washington, D.C. to Gimpo Intl. Data last updated September 16, 2025 and is based on user searches.

Sat 9/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Tue 10/77:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/15

$1,219

Mon 9/226:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Tue 10/77:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/14

$1,118

Thu 9/256:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Thu 10/237:55 amGMP - BWI

2 stops22h 38mJapan Airlines

Deal found 9/15

$1,108

Mon 9/2911:23 amBWI - GMP

2 stops34h 22mMultiple Airlines

Sat 10/117:55 amGMP - BWI

2 stops27h 59mMultiple Airlines

Deal found 9/15

$1,328

Thu 10/165:37 pmBWI - GMP

3 stops30h 13mMultiple Airlines

Fri 10/241:50 pmGMP - BWI

2 stops29h 45mMultiple Airlines

Deal found 9/15

$1,375

Mon 10/205:45 pmIAD - GMP

3 stops30h 20mMultiple Airlines

Sat 10/252:25 pmGMP - IAD

3 stops35h 20mMultiple Airlines

Deal found 9/15

$1,271

Tue 10/216:25 amIAD - GMP

2 stops26h 25mMultiple Airlines

Mon 10/278:00 amGMP - IAD

2 stops35h 23mMultiple Airlines

Deal found 9/14

$1,205

Tue 10/218:00 amDCA - GMP

2 stops24h 50mMultiple Airlines

Mon 10/278:00 amGMP - DCA

2 stops26h 59mMultiple Airlines

Deal found 9/14

$1,495

Sun 10/266:24 amIAD - GMP

2 stops41h 41mAir China

Fri 10/312:25 pmGMP - IAD

2 stops29h 23mAir China

Deal found 9/15

$1,423

Tue 10/2811:00 pmIAD - GMP

1 stop25h 05mAir China

Tue 11/48:35 amGMP - IAD

1 stop23h 55mAir China

Deal found 9/13

$1,465

Wed 10/296:14 amBWI - GMP

2 stops26h 51mMultiple Airlines

Wed 11/58:00 amGMP - BWI

2 stops29h 02mMultiple Airlines

Deal found 9/14

$1,301

Fri 10/315:59 pmIAD - GMP

2 stops30h 06mAir China

Fri 11/72:25 pmGMP - IAD

2 stops30h 56mAir China

Deal found 9/16

$1,471

One-way flights from Washington, D.C. to Gimpo Intl
Search for one-way flight options from Washington, D.C. to Gimpo Intl. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Mon 9/295:45 amBWI - GMP

3 stops47h 45mMultiple Airlines

Deal found 9/15

$523

Mon 10/135:35 amBWI - GMP

3 stops45h 05mMultiple Airlines

Deal found 9/15

$586

Mon 11/35:35 amBWI - GMP

2 stops41h 30mMultiple Airlines

Deal found 9/14

$599

Mon 11/106:00 amBWI - GMP

2 stops41h 05mMultiple Airlines

Deal found 9/16

$602

Mon 9/298:59 amDCA - GMP

3 stops59h 36mMultiple Airlines

Deal found 9/15

$613

Mon 9/225:45 amBWI - GMP

3 stops47h 10mMultiple Airlines

Deal found 9/14

$625

Tue 10/146:59 pmDCA - GMP

3 stops57h 06mMultiple Airlines

Deal found 9/16

$625

Mon 9/299:00 amIAD - GMP

3 stops43h 40mMultiple Airlines

Deal found 9/15

$637

Mon 9/221:30 pmIAD - GMP

3 stops54h 35mMultiple Airlines

Deal found 9/14

$641

Sat 11/228:26 pmBWI - GMP

3 stops47h 54mMultiple Airlines

Deal found 9/16

$651

Fri 10/245:35 amBWI - GMP

3 stops39h 30mMultiple Airlines

Deal found 9/15

$655

Sun 10/1910:20 pmIAD - GMP

3 stops49h 05mMultiple Airlines

Deal found 9/14

$657

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 11/3

12:09 pm-11:00 am

2 stops32h 51m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-7:08 pm

2 stops36h 18m

$1,021

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 11/5

6:05 am-11:00 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/3

6:05 am-11:00 am

2 stops38h 55m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/17

11:10 am-11:00 am

2 stops33h 50m

Seoul Gimpo Intl

Mon 11/24

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 11/10

11:10 am-11:00 am

2 stops33h 50m

Seoul Gimpo Intl

Mon 11/17

8:50 pm-6:00 pm

2 stops35h 10m

$1,050

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 9/25

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

Thu 10/23

7:55 am-5:33 pm

2 stops22h 38m

$1,108

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/22

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

Tue 10/7

7:20 pm-5:33 pm

2 stops35h 13m

$1,118

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Wed 10/29

6:14 am-10:05 pm

2 stops26h 51m

Seoul Gimpo Intl

Wed 11/5

8:00 am-11:02 pm

2 stops29h 02m

$1,301

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 11/27

6:00 am-10:55 am

2 stops38h 55m

Seoul Gimpo Intl

Tue 12/2

7:40 pm-4:46 pm

2 stops35h 06m

$1,306

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Mon 9/29

11:23 am-10:45 am

2 stops34h 22m

Seoul Gimpo Intl

Sat 10/11

7:55 am-10:54 pm

2 stops27h 59m

$1,328

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results

...

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

How long is the flight from Washington, D.C. to Seoul Gimpo Intl Airport?
China Eastern, Japan Airlines, and Air China can get you from Washington, D.C. to Seoul Gimpo Intl Airport in just under 25h 05m. Your travel time can differ by up to 14h 40m. 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

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$523+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Washington, D.C. to Gimpo Intl

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Find flight deals from Washington, D.C. to Gimpo Intl

Cheapest flights from Washington, D.C. to Gimpo IntlExplore 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 September 16, 2025.

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 September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Seoul Gimpo Intl Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Seoul Gimpo Intl Airport

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?

What are the most popular routes 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?

How can I 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?

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

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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 September 16, 2025.