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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $552

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 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seoul Gimpo Intl Airport to Washington, D.C.

Cheap round-trip flights

ANA Logo
12:25 pm - 1:13 pmGMP-DCA
38h 48m2 stops
ANA Logo
2:00 pm - 10:30 pmDCA-GMP
42h 30m2 stops
$1,137ANA
Find Deal
Thu, Feb 5 - Sun, Feb 8
ANA Logo
12:25 pm - 7:13 pmGMP-DCA
44h 48m2 stops
ANA Logo
7:30 am - 11:20 amDCA-GMP
37h 50m2 stops
$1,142ANA
Find Deal
Thu, Feb 5 - Sun, Feb 8
ANA Logo
12:25 pm - 7:13 pmGMP-DCA
44h 48m2 stops
ANA Logo
7:30 am - 11:20 amDCA-GMP
37h 50m2 stops
$1,147ANA
Find Deal
Thu, Feb 5 - Sun, Feb 8
Japan Airlines Logo
7:55 am - 10:57 pmGMP-DCA
28h 02m2 stops
Japan Airlines Logo
7:06 pm - 9:50 pmDCA-GMP
37h 44m2 stops
$1,249Japan Airlines
Find Deal
Fri, Oct 10 - Sat, Oct 18
Japan Airlines Logo
7:55 am - 10:57 pmGMP-DCA
28h 02m2 stops
Japan Airlines Logo
7:06 pm - 9:50 pmDCA-GMP
37h 44m2 stops
$1,266Japan Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Japan Airlines Logo
8:00 am - 4:27 pmGMP-DCA
22h 27m2 stops
Japan Airlines Logo
8:01 am - 10:05 pmDCA-GMP
25h 04m2 stops
$1,298Japan Airlines
Find Deal
Wed, Feb 11 - Mon, Mar 9
Japan Airlines Logo
7:55 am - 1:58 pmGMP-DCA
19h 03m2 stops
Japan Airlines Logo
3:25 pm - 10:55 amDCA-GMP
29h 30m2 stops
$1,303Japan Airlines
Find Deal
Fri, Oct 24 - Mon, Nov 3
Japan Airlines Logo
7:55 am - 10:57 pmGMP-DCA
28h 02m2 stops
Japan Airlines Logo
6:38 am - 9:50 pmDCA-GMP
50h 12m2 stops
$1,320Japan Airlines
Find Deal
Fri, Oct 10 - Sat, Oct 18
Multiple Airlines Logo
8:00 am - 2:50 pmGMP-DCA
19h 50m2 stops
Multiple Airlines Logo
8:40 am - 10:05 pmDCA-GMP
23h 25m2 stops
$1,448Multiple Airlines
Find Deal
Sun, Nov 2 - Fri, Nov 7
ANA Logo
7:50 pm - 2:17 pmGMP-DCA
32h 27m2 stops
ANA Logo
1:00 pm - 11:20 amDCA-GMP
32h 20m2 stops
$1,618ANA
Find Deal
Tue, Dec 23 - Fri, Jan 2

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

Our best ANA deals on Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
ANA
Feb 5
GMP12:25 pmSeoul Gimpo Intl
38h 48m
2 stops
DCA1:13 pmWashington, D.C. Reagan-National
Feb 8
DCA2:00 pmWashington, D.C. Reagan-National
42h 30m
2 stops
GMP10:30 pmSeoul Gimpo Intl
$1,137
Find similar
ANA
Feb 5
GMP12:25 pmSeoul Gimpo Intl
44h 48m
2 stops
DCA7:13 pmWashington, D.C. Reagan-National
Feb 8
DCA7:30 amWashington, D.C. Reagan-National
37h 50m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,142
Find similar
ANA
Feb 5
GMP12:25 pmSeoul Gimpo Intl
44h 48m
2 stops
DCA7:13 pmWashington, D.C. Reagan-National
Feb 8
DCA7:30 amWashington, D.C. Reagan-National
37h 50m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,147
Find similar

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

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
Japan Airlines
Oct 10
GMP7:55 amSeoul Gimpo Intl
28h 02m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
Oct 18
DCA7:06 pmWashington, D.C. Reagan-National
37h 44m
2 stops
GMP9:50 pmSeoul Gimpo Intl
$1,249
Find similar
Japan Airlines
Oct 10
GMP7:55 amSeoul Gimpo Intl
28h 02m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
Oct 13
DCA7:06 pmWashington, D.C. Reagan-National
37h 44m
2 stops
GMP9:50 pmSeoul Gimpo Intl
$1,266
Find similar
Japan Airlines
Feb 11
GMP8:00 amSeoul Gimpo Intl
22h 27m
2 stops
DCA4:27 pmWashington, D.C. Reagan-National
Mar 9
DCA8:01 amWashington, D.C. Reagan-National
25h 04m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,298
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport 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 September 17, 2025.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 2/5

12:25 pm-1:13 pm

2 stops38h 48m

Washington, D.C. Reagan-National

Sun 2/8

2:00 pm-10:30 pm

2 stops42h 30m

$1,137

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 2/5

12:25 pm-7:13 pm

2 stops44h 48m

Washington, D.C. Reagan-National

Sun 2/8

7:30 am-11:20 am

2 stops37h 50m

$1,142

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 2/5

12:25 pm-7:13 pm

2 stops44h 48m

Washington, D.C. Reagan-National

Sun 2/8

7:30 am-11:20 am

2 stops37h 50m

$1,147

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 10/10

7:55 am-10:57 pm

2 stops28h 02m

Washington, D.C. Reagan-National

Sat 10/18

7:06 pm-9:50 pm

2 stops37h 44m

$1,249

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 10/10

7:55 am-10:57 pm

2 stops28h 02m

Washington, D.C. Reagan-National

Mon 10/13

7:06 pm-9:50 pm

2 stops37h 44m

$1,266

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 2/11

8:00 am-4:27 pm

2 stops22h 27m

Washington, D.C. Reagan-National

Mon 3/9

8:01 am-10:05 pm

2 stops25h 04m

$1,298

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 10/24

7:55 am-1:58 pm

2 stops19h 03m

Washington, D.C. Reagan-National

Mon 11/3

3:25 pm-10:55 am

2 stops29h 30m

$1,303

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 10/10

7:55 am-10:57 pm

2 stops28h 02m

Washington, D.C. Reagan-National

Sat 10/18

6:38 am-9:50 pm

2 stops50h 12m

$1,320

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Sun 11/2

8:00 am-2:50 pm

2 stops19h 50m

Washington, D.C. Reagan-National

Fri 11/7

8:40 am-10:05 pm

2 stops23h 25m

$1,448

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 12/23

7:50 pm-2:17 pm

2 stops32h 27m

Washington, D.C. Reagan-National

Fri 1/2

1:00 pm-11:20 am

2 stops32h 20m

$1,618

Flights are sorted by cheapest round-trip flights 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. Reagan-National Airport

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 airline that flies from Seoul Gimpo Intl to Washington, D.C. Reagan-National?

Japan Airlines is the most popular carrier operating from Seoul Gimpo Intl to Washington, D.C. Reagan-National

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

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport (GMP to DCA) 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. Reagan-National Airport

Direct flights

None
There are no direct flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport.
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  • How far is Seoul Gimpo Intl to Washington, D.C. Reagan-National by plane?

    Seoul Gimpo Intl and Washington, D.C. Reagan-National are 6938.8 mi apart from one another. Typically, this will take 19h 03m by plane in normal conditions.

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

    Prices for flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport.

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

    The travel and health documents required for your trip to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport. 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
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seoul to Washington, D.C. for you.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Seoul with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seoul to Washington, D.C..

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

Yes. momondo can track prices for Seoul to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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