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

There are many flights that can get you from Seoul Gimpo Intl Airport to Washington, D.C. in 27h 05m. Fly via ANA or Japan Airlines to get the fastest option. Seoul Gimpo Intl Airport and Washington, D.C. are separated by a distance of 6924 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 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 Seoul Gimpo Intl Airport to Washington, D.C.?

When deciding which route to take from Seoul Gimpo Intl Airport to Washington, D.C. consider Seoul Gimpo Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Reagan-National or Seoul Gimpo Intl - Baltimore/Washington as they are the most popular.

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

When flying from Seoul Gimpo Intl Airport to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Gimpo Intl to Washington, D.C.?

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

Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?

Yes. Cheapflights offers flight deals from Gimpo Intl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$661+ Flights from Seoul Gimpo Intl Airport to Washington, D.C.

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

Cheapest flights from Gimpo Intl to Washington, D.C.
Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Mon 12/157:50 pmGMP - IAD

1 stop27h 20mANA

Fri 2/2711:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/15

$1,006

Tue 12/237:50 pmGMP - IAD

1 stop27h 20mANA

Tue 2/1711:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/14

$1,425

Tue 12/2312:25 pmGMP - IAD

1 stop34h 45mANA

Tue 1/611:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/16

$1,437

Mon 12/2912:25 pmGMP - IAD

1 stop34h 45mANA

Thu 1/11:00 pmIAD - GMP

2 stops32h 20mANA

Deal found 12/15

$1,443

Tue 12/237:50 pmGMP - IAD

1 stop27h 20mANA

Fri 1/21:00 pmIAD - GMP

2 stops32h 20mANA

Deal found 12/14

$1,450

Fri 12/198:00 amGMP - DCA

2 stops22h 01mMultiple Airlines

Thu 1/13:25 pmDCA - GMP

2 stops29h 30mMultiple Airlines

Deal found 12/15

$1,465

Thu 12/257:50 pmGMP - IAD

1 stop27h 20mANA

Sat 1/1011:10 amIAD - GMP

1 stop34h 10mANA

Deal found 12/15

$1,468

Thu 12/2512:25 pmGMP - IAD

1 stop34h 45mANA

Sun 1/48:15 amIAD - GMP

2 stops37h 05mANA

Deal found 12/16

$1,475

Wed 12/247:50 pmGMP - IAD

1 stop27h 20mANA

Tue 2/1711:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/14

$1,493

Fri 12/198:00 amGMP - DCA

2 stops22h 01mJapan Airlines

Fri 1/26:00 amDCA - GMP

2 stops26h 05mJapan Airlines

Deal found 12/15

$1,540

Tue 12/238:00 amGMP - DCA

2 stops22h 20mMultiple Airlines

Tue 1/66:30 amDCA - GMP

2 stops25h 35mMultiple Airlines

Deal found 12/16

$1,541

Fri 12/197:50 pmGMP - IAD

1 stop27h 20mANA

Thu 1/11:00 pmIAD - GMP

2 stops32h 20mANA

Deal found 12/15

$1,546

Best flights from Gimpo Intl to Washington, D.C.
Discover carefully curated flight deals from Gimpo Intl to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Wed 2/117:50 pmGMP - IAD

1 stop27h 20mANA

Mon 3/912:15 pmIAD - GMP

1 stop21h 15mANA

Deal found 12/17

$1,006

Wed 4/17:55 amGMP - BWI

2 stops27h 05mJapan Airlines

Sun 4/56:52 amBWI - GMP

2 stops38h 53mJapan Airlines

Deal found 12/17

$1,217

Wed 2/118:00 amGMP - DCA

2 stops22h 38mMultiple Airlines

Mon 3/97:30 amDCA - GMP

2 stops25h 35mMultiple Airlines

Deal found 12/16

$1,272

Fri 4/247:40 amGMP - IAD

2 stops36h 55mANA

Wed 4/2912:15 pmIAD - GMP

1 stop21h 05mANA

Deal found 12/14

$1,043

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Sat 1/318:20 amIAD - GMP

2 stops37h 00mANA

Deal found 12/16

$1,092

Wed 4/17:55 amGMP - DCA

2 stops19h 46mJapan Airlines

Sun 4/55:00 pmDCA - GMP

2 stops39h 50mJapan Airlines

Deal found 12/16

$1,220

Wed 1/1412:25 pmGMP - IAD

2 stops33h 05mANA

Sun 1/188:20 amIAD - GMP

2 stops37h 00mANA

Deal found 12/16

$1,098

Thu 1/298:00 amGMP - DCA

2 stops20h 57mMultiple Airlines

Wed 2/116:30 amDCA - GMP

2 stops25h 35mMultiple Airlines

Deal found 12/17

$1,345

Wed 2/118:00 amGMP - DCA

2 stops20h 57mJapan Airlines

Mon 3/97:30 amDCA - GMP

2 stops25h 35mJapan Airlines

Deal found 12/17

$1,268

Thu 1/297:50 pmGMP - DCA

2 stops31h 23mANA

Sat 1/316:30 amDCA - GMP

2 stops38h 50mANA

Deal found 12/16

$1,098

Fri 1/308:00 amGMP - BWI

2 stops29h 18mMultiple Airlines

Fri 2/66:00 amBWI - GMP

2 stops38h 55mMultiple Airlines

Deal found 12/15

$1,355

Mon 2/28:00 amGMP - DCA

2 stops23h 08mJapan Airlines

Sat 2/286:02 amDCA - GMP

2 stops26h 03mJapan Airlines

Deal found 12/15

$1,349

Sat 1/3112:25 pmGMP - IAD

1 stop34h 45mANA

Sat 2/711:10 amIAD - GMP

1 stop34h 10mANA

Deal found 12/17

$1,116

Wed 2/187:50 pmGMP - IAD

1 stop27h 20mANA

Thu 2/1912:40 pmIAD - GMP

2 stops43h 50mANA

Deal found 12/16

$1,119

Thu 1/298:00 amGMP - DCA

2 stops28h 03mJapan Airlines

Thu 2/56:10 amDCA - GMP

2 stops25h 55mJapan Airlines

Deal found 12/14

$1,362

Sun 3/227:40 pmGMP - DCA

2 stops39h 16mJapan Airlines

Sun 4/126:35 amDCA - GMP

2 stops39h 10mJapan Airlines

Deal found 12/17

$1,409

Mon 3/28:00 amGMP - BWI

3 stops29h 17mMultiple Airlines

Wed 3/411:30 amBWI - GMP

3 stops35h 20mMultiple Airlines

Deal found 12/17

$1,741

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Wed 2/1111:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/17

$1,213

Sun 3/227:40 pmGMP - DCA

2 stops39h 16mJapan Airlines

Sat 4/115:49 pmDCA - GMP

2 stops39h 01mJapan Airlines

Deal found 12/17

$1,460

Mon 3/27:50 pmGMP - BWI

2 stops32h 11mANA

Wed 3/410:30 amBWI - GMP

2 stops42h 05mANA

Deal found 12/17

$1,213

Thu 1/297:50 pmGMP - BWI

2 stops32h 21mANA

Sat 1/3110:05 amBWI - GMP

2 stops35h 15mANA

Deal found 12/16

$1,275

Wed 2/187:50 pmGMP - DCA

2 stops30h 09mANA

Tue 3/248:20 amDCA - GMP

2 stops25h 10mANA

Deal found 12/16

$1,464

Wed 1/147:50 pmGMP - BWI

2 stops39h 31mANA

Sun 1/1810:05 amBWI - GMP

2 stops35h 15mANA

Deal found 12/16

$1,479

Wed 2/187:45 amGMP - BWI

2 stops27h 32mANA

Thu 2/196:30 amBWI - GMP

2 stops26h 05mANA

Deal found 12/16

$2,597

Fri 1/28:40 amGMP - BWI

2 stops26h 46mANA

Tue 1/610:05 amBWI - GMP

2 stops35h 15mANA

Deal found 12/16

$2,704

Thu 1/18:40 amGMP - BWI

2 stops26h 46mANA

Tue 1/610:05 amBWI - GMP

2 stops35h 15mANA

Deal found 12/16

$2,704

Wed 2/187:50 pmGMP - BWI

2 stops39h 27mANA

Tue 3/248:09 amBWI - GMP

2 stops25h 21mANA

Deal found 12/16

$4,398

Last-minute flights from Gimpo Intl to Washington, D.C.
Discover last-minute flight deals from Gimpo Intl to Washington, D.C.. Data last updated December 18, 2025 and is based on user searches.

Wed 1/1412:25 pmGMP - IAD

2 stops33h 05mANA

Sun 1/188:20 amIAD - GMP

2 stops37h 00mANA

Deal found 12/16

$1,098

Mon 1/2612:25 pmGMP - IAD

1 stop34h 45mANA

Wed 2/2511:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/17

$1,299

Mon 1/2612:05 pmGMP - IAD

2 stops42h 21mMultiple Airlines

Wed 2/256:00 amIAD - GMP

2 stops26h 05mMultiple Airlines

Deal found 12/17

$1,323

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Fri 2/611:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/15

$1,063

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Sat 1/318:20 amIAD - GMP

2 stops37h 00mANA

Deal found 12/16

$1,092

Thu 1/297:50 pmGMP - DCA

2 stops31h 23mANA

Sat 1/316:30 amDCA - GMP

2 stops38h 50mANA

Deal found 12/16

$1,098

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Thu 3/511:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/14

$1,205

Thu 1/297:50 pmGMP - IAD

1 stop27h 20mANA

Wed 2/1111:10 amIAD - GMP

1 stop21h 20mANA

Deal found 12/17

$1,213

Thu 1/297:50 pmGMP - BWI

2 stops32h 21mANA

Sat 1/3110:05 amBWI - GMP

2 stops35h 15mANA

Deal found 12/16

$1,275

Thu 1/298:00 amGMP - DCA

2 stops20h 57mMultiple Airlines

Wed 2/116:30 amDCA - GMP

2 stops25h 35mMultiple Airlines

Deal found 12/17

$1,345

Fri 1/308:00 amGMP - BWI

2 stops29h 18mMultiple Airlines

Fri 2/66:00 amBWI - GMP

2 stops38h 55mMultiple Airlines

Deal found 12/15

$1,355

Sat 1/3112:25 pmGMP - IAD

1 stop34h 45mANA

Sat 2/711:10 amIAD - GMP

1 stop34h 10mANA

Deal found 12/17

$1,116

One-way flights from Gimpo Intl to Washington, D.C.
Search for one-way flight options from Gimpo Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Fri 1/302:25 pmGMP - IAD

1 stop18h 05mAir China

Deal found 12/15

$661

Tue 1/132:25 pmGMP - IAD

1 stop18h 05mAir China

Deal found 12/14

$674

Fri 6/51:50 pmGMP - DCA

2 stops43h 10mEVA Air

Deal found 12/16

$731

Fri 5/87:40 amGMP - BWI

3 stops39h 17mMultiple Airlines

Deal found 12/17

$749

Thu 4/167:55 amGMP - DCA

2 stops18h 57mJapan Airlines

Deal found 12/15

$777

Fri 5/297:55 amGMP - DCA

2 stops28h 12mJapan Airlines

Deal found 12/15

$783

Sun 1/257:40 pmGMP - DCA

2 stops40h 19mJapan Airlines

Deal found 12/16

$791

Wed 5/207:55 amGMP - BWI

2 stops19h 06mMultiple Airlines

Deal found 12/16

$793

Sun 2/81:30 pmGMP - IAD

2 stops33h 35mMultiple Airlines

Deal found 12/17

$794

Sun 2/87:40 pmGMP - DCA

2 stops40h 19mJapan Airlines

Deal found 12/17

$794

Sun 2/812:05 pmGMP - BWI

2 stops43h 47mJapan Airlines

Deal found 12/15

$795

Mon 3/168:00 amGMP - DCA

2 stops21h 37mJapan Airlines

Deal found 12/15

$795

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

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,006 (WhyPayMore)
One-way from	$661 (SmartFares)
Popular in	August
Cheapest in	November
Average price	$933

Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.

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From Seoul Gimpo Intl to Washington, D.C. (WAS)

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One-way flight from Seoul Gimpo Intl to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 23% potential increase in price ($297 potential increase over avg. RT price).

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Cheapest flight prices on average. 9% potential price decrease ($83 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/11

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Mon 3/9

12:15 pm-10:30 pm

1 stop21h 15m

$1,006

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 4/24

7:40 am-7:35 am

2 stops36h 55m

Washington, D.C. Dulles Intl

Wed 4/29

12:15 pm-10:20 pm

1 stop21h 05m

$1,043

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 1/29

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Sat 1/31

8:20 am-11:20 am

2 stops37h 00m

$1,092

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 1/14

12:25 pm-7:30 am

2 stops33h 05m

Washington, D.C. Dulles Intl

Sun 1/18

8:20 am-11:20 am

2 stops37h 00m

$1,098

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 1/29

7:50 pm-1:13 pm

2 stops31h 23m

Washington, D.C. Reagan-National

Sat 1/31

6:30 am-11:20 am

2 stops38h 50m

$1,098

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sat 1/31

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Sat 2/7

11:10 am-11:20 am

1 stop34h 10m

$1,116

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/18

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Thu 2/19

12:40 pm-10:30 pm

2 stops43h 50m

$1,119

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 1/29

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Wed 2/11

11:10 am-10:30 pm

1 stop21h 20m

$1,213

SeoulBaltimore

GMP - BWI

GMPBWI

Seoul Gimpo Intl

Mon 3/2

7:50 pm-2:01 pm

2 stops32h 11m

Baltimore/Washington

Wed 3/4

10:30 am-6:35 pm

2 stops42h 05m

$1,213

SeoulBaltimore

GMP - BWI

GMPBWI

Seoul Gimpo Intl

Wed 4/1

7:55 am-10:00 pm

2 stops27h 05m

Baltimore/Washington

Sun 4/5

6:52 am-10:45 am

2 stops38h 53m

$1,217

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 55 results

...

Best time to book a flight from Gimpo Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Gimpo 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.

Cheapflights Insights

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

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Seoul Gimpo Intl Airport to Washington, D.C.?
There are many flights that can get you from Seoul Gimpo Intl Airport to Washington, D.C. in 27h 05m. Fly via ANA or Japan Airlines to get the fastest option. Seoul Gimpo Intl Airport and Washington, D.C. are separated by a distance of 6924 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 Seoul Gimpo Intl Airport to Washington, D.C.?
When deciding which route to take from Seoul Gimpo Intl Airport to Washington, D.C. consider Seoul Gimpo Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Reagan-National or Seoul Gimpo Intl - Baltimore/Washington as they are the most popular.
Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Gimpo Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Gimpo Intl to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gimpo Intl to Washington, D.C..
Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Gimpo Intl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$661+ Cheap flights from Gimpo Intl (GMP) to Washington, D.C. (WAS)

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 1/30. 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 Gimpo Intl to Washington, D.C.

Cheapest flights from Gimpo Intl to Washington, D.C.Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

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

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Best time to book a flight from Gimpo Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Gimpo Intl with our price prediction graph.

Cheapflights Insights

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

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Washington, D.C.. 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 Seoul Gimpo Intl Airport to Washington, D.C.?

What are the most popular routes from Seoul Gimpo Intl Airport to Washington, D.C.?

Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?

How can I find direct flights from Gimpo Intl to Washington, D.C.?

Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?

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Cheapest flights from Gimpo Intl to Washington, D.C.
Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.