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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $631

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul Gimpo Intl Airport to Washington, D.C. departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seoul Gimpo Intl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 4:29 pmGMP  Seoul Gimpo Intl-DCA Washington, D.C. Reagan-National
21h 29m2 stops Tokyo Haneda Los Angeles Los Angeles
Multiple Airlines Logo
7:32 am - 5:55 pmDCA  Washington, D.C. Reagan-National-GMP Seoul Gimpo Intl
21h 23m2 stops Dallas/Fort Worth Tokyo Haneda
$1,067Multiple Airlines
Wed, Sep 9 - Mon, Sep 21
Multiple Airlines Logo
8:00 am - 8:24 pmGMP  Seoul Gimpo Intl-IAD Washington, D.C. Dulles Intl
25h 24m2 stops Tokyo Haneda Dallas/Fort Worth
Multiple Airlines Logo
6:52 am - 5:55 pmIAD  Washington, D.C. Dulles Intl-GMP Seoul Gimpo Intl
22h 03m2 stops Dallas/Fort Worth Tokyo Haneda
$1,067Multiple Airlines
Wed, Sep 9 - Mon, Sep 21
Japan Airlines Logo
8:00 am - 11:10 pmGMP  Seoul Gimpo Intl-DCA Washington, D.C. Reagan-National
28h 10m2 stops Tokyo Haneda New York John F Kennedy Intl
Japan Airlines Logo
11:31 am - 9:15 pmDCA  Washington, D.C. Reagan-National-GMP Seoul Gimpo Intl
20h 44m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,166Japan Airlines
Mon, Sep 14 - Tue, Sep 22
Japan Airlines Logo
8:00 am - 11:33 pmGMP  Seoul Gimpo Intl-DCA Washington, D.C. Reagan-National
28h 33m2 stops Tokyo Haneda New York John F Kennedy Intl
Japan Airlines Logo
6:23 pm - 10:40 amDCA  Washington, D.C. Reagan-National-GMP Seoul Gimpo Intl
27h 17m2 stops New York John F Kennedy Intl Tokyo Haneda
$1,191Japan Airlines
Mon, Sep 7 - Mon, Sep 21
Multiple Airlines Logo
8:00 am - 5:46 pmGMP  Seoul Gimpo Intl-BWI Baltimore/Washington
22h 46m2 stops Tokyo Haneda Chicago O'Hare Intl
Multiple Airlines Logo
11:23 am - 9:15 pmBWI  Baltimore/Washington-GMP Seoul Gimpo Intl
20h 52m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,251Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
8:00 am - 6:03 pmGMP  Seoul Gimpo Intl-DCA Washington, D.C. Reagan-National
23h 03m2 stops Tokyo Haneda Chicago O'Hare Intl
Multiple Airlines Logo
8:40 am - 9:15 pmDCA  Washington, D.C. Reagan-National-GMP Seoul Gimpo Intl
23h 35m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,251Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
ANA Logo
7:55 pm - 10:05 amGMP  Seoul Gimpo Intl-IAD Washington, D.C. Dulles Intl
27h 10m1 stop Tokyo Haneda
ANA Logo
12:15 pm - 11:05 amIAD  Washington, D.C. Dulles Intl-GMP Seoul Gimpo Intl
33h 50m1 stop Tokyo Haneda
$1,266ANA
Mon, Sep 7 - Mon, Sep 21
ANA Logo
12:40 pm - 10:05 amGMP  Seoul Gimpo Intl-IAD Washington, D.C. Dulles Intl
34h 25m1 stop Tokyo Haneda
ANA Logo
12:15 pm - 10:20 pmIAD  Washington, D.C. Dulles Intl-GMP Seoul Gimpo Intl
21h 05m1 stop Tokyo Haneda
$1,316ANA
Mon, Sep 21 - Mon, Sep 28
Japan Airlines Logo
8:00 am - 11:33 pmGMP  Seoul Gimpo Intl-DCA Washington, D.C. Reagan-National
28h 33m2 stops Tokyo Haneda New York John F Kennedy Intl
Japan Airlines Logo
6:00 am - 9:15 pmDCA  Washington, D.C. Reagan-National-GMP Seoul Gimpo Intl
26h 15m2 stops New York John F Kennedy Intl Tokyo Haneda
$1,318Japan Airlines
Tue, Sep 8 - Wed, Oct 14
ANA Logo
7:55 pm - 10:05 amGMP  Seoul Gimpo Intl-IAD Washington, D.C. Dulles Intl
27h 10m1 stop Tokyo Haneda
ANA Logo
12:15 pm - 10:20 pmIAD  Washington, D.C. Dulles Intl-GMP Seoul Gimpo Intl
21h 05m1 stop Tokyo Haneda
$1,320ANA
Mon, Oct 19 - Fri, Oct 23

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ANA flights from Seoul Gimpo Intl Airport to Washington, D.C.

Our best ANA deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets
ANA
Sep 7
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 21
IAD12:15 pmWashington, D.C. Dulles Intl
33h 50m
1 stop
GMP11:05 amSeoul Gimpo Intl
$1,266
ANA
Sep 21
GMP12:40 pmSeoul Gimpo Intl
34h 25m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 28
IAD12:15 pmWashington, D.C. Dulles Intl
21h 05m
1 stop
GMP10:20 pmSeoul Gimpo Intl
$1,316
ANA
Oct 19
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Oct 23
IAD12:15 pmWashington, D.C. Dulles Intl
21h 05m
1 stop
GMP10:20 pmSeoul Gimpo Intl
$1,320

Japan Airlines flights from Seoul Gimpo Intl Airport to Washington, D.C.

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets
Japan Airlines
Sep 14
GMP8:00 amSeoul Gimpo Intl
28h 10m
2 stops
DCA11:10 pmWashington, D.C. Reagan-National
Sep 22
DCA6:00 amWashington, D.C. Reagan-National
26h 15m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,166
Japan Airlines
Sep 7
GMP8:00 amSeoul Gimpo Intl
28h 33m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
Sep 21
DCA6:23 pmWashington, D.C. Reagan-National
27h 17m
2 stops
GMP10:40 amSeoul Gimpo Intl
$1,191
Japan Airlines
Sep 8
GMP8:00 amSeoul Gimpo Intl
28h 33m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
Oct 14
DCA6:00 amWashington, D.C. Reagan-National
26h 15m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,318

momondo Fare Finder

 
Customize your flight search to find flights from Seoul Gimpo Intl Airport to Washington, D.C. 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, momondo users made 832,500 searches. Data last updated August 10, 2026.
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

Cheapest round-trip
Quickest round-trip

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - DCA Washington, D.C. Reagan-National

GMPDCA

Seoul Gimpo Intl

Wed 9/9

8:00 am-4:29 pm

2 stops21h 29m

Washington, D.C. Reagan-National

Mon 9/21

7:32 am-5:55 pm

2 stops21h 23m

$1,067

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - IAD Washington, D.C. Dulles Intl

GMPIAD

Seoul Gimpo Intl

Wed 9/9

8:00 am-8:24 pm

2 stops25h 24m

Washington, D.C. Dulles Intl

Mon 9/21

6:52 am-5:55 pm

2 stops22h 03m

$1,067

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - DCA Washington, D.C. Reagan-National

GMPDCA

Seoul Gimpo Intl

Mon 9/14

8:00 am-11:10 pm

2 stops28h 10m

Washington, D.C. Reagan-National

Tue 9/22

11:31 am-9:15 pm

2 stops20h 44m

$1,166

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - DCA Washington, D.C. Reagan-National

GMPDCA

Seoul Gimpo Intl

Mon 9/7

8:00 am-11:33 pm

2 stops28h 33m

Washington, D.C. Reagan-National

Mon 9/21

6:23 pm-10:40 am

2 stops27h 17m

$1,191

SeoulBaltimore

GMP Seoul Gimpo Intl - BWI Baltimore/Washington

GMPBWI

Seoul Gimpo Intl

Mon 9/21

8:00 am-5:46 pm

2 stops22h 46m

Baltimore/Washington

Mon 9/28

11:23 am-9:15 pm

2 stops20h 52m

$1,251

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - DCA Washington, D.C. Reagan-National

GMPDCA

Seoul Gimpo Intl

Mon 9/21

8:00 am-6:03 pm

2 stops23h 03m

Washington, D.C. Reagan-National

Mon 9/28

8:40 am-9:15 pm

2 stops23h 35m

$1,251

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - IAD Washington, D.C. Dulles Intl

GMPIAD

Seoul Gimpo Intl

Mon 9/7

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 9/21

12:15 pm-11:05 am

1 stop33h 50m

$1,266

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - IAD Washington, D.C. Dulles Intl

GMPIAD

Seoul Gimpo Intl

Mon 9/21

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Mon 9/28

12:15 pm-10:20 pm

1 stop21h 05m

$1,316

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - DCA Washington, D.C. Reagan-National

GMPDCA

Seoul Gimpo Intl

Tue 9/8

8:00 am-11:33 pm

2 stops28h 33m

Washington, D.C. Reagan-National

Wed 10/14

6:00 am-9:15 pm

2 stops26h 15m

$1,318

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - IAD Washington, D.C. Dulles Intl

GMPIAD

Seoul Gimpo Intl

Mon 10/19

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Fri 10/23

12:15 pm-10:20 pm

1 stop21h 05m

$1,320

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Seoul Gimpo Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $1,258. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seoul Gimpo Intl Airport to Washington, D.C. for around $1,811.

Can stopping save me money on Seoul Gimpo Intl Airport to Washington, D.C. flights?

You could potentially save up to 5% on your flight if you consider stops on a Seoul Gimpo Intl Airport to Washington, D.C. flight.

When to book flights from Seoul Gimpo Intl Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul Gimpo Intl Airport to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seoul Gimpo Intl Airport to Washington, D.C. (GMP to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul Gimpo Intl Airport to Washington, D.C.

Fastest flight time

21h 24m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. takes 21h 24m
There are no direct flights from Seoul Gimpo Intl Airport to Washington, D.C.. There are no popular flight routes from Seoul Gimpo Intl Airport to Washington, D.C..
Search flight deals

Frequently asked questions about flying from Seoul Gimpo Intl Airport to Washington, D.C.

  • How far is Seoul Gimpo Intl to Washington, D.C. by plane?

    The distance between Seoul Gimpo Intl and Washington, D.C. is about 6935.3 mi. Typically, this will take 21h 24m by plane in normal conditions.

  • When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Washington, D.C.?

    Prices for flights from Seoul Gimpo Intl Airport to Washington, D.C. refresh daily.

  • How old do you have to be to fly from Seoul Gimpo Intl Airport to Washington, D.C.?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Colonial Beach
Springfield
Fairfax
Tysons
Edgewood
Glen Burnie
College Park

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?

Finding the right flight to Washington, D.C. from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seoul to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Seoul.

I’m not ready to book a flight from Seoul to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seoul to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport