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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $726

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 9/14. 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
9:00 am - 10:31 pm
GMP
-
DCA
26h 31m
2 stops
Multiple Airlines Logo
6:59 am - 10:20 pm
DCA
-
GMP
26h 21m
2 stops
$1,361Multiple Airlines
Tue, Aug 25 - Thu, Aug 27
Japan Airlines Logo
12:05 pm - 7:59 am
GMP
-
DCA
32h 54m
2 stops
Japan Airlines Logo
5:55 pm - 10:05 pm
DCA
-
GMP
39h 10m
2 stops
$1,379Japan Airlines
Tue, Oct 20 - Sun, Oct 25
Japan Airlines Logo
12:05 pm - 4:51 pm
GMP
-
DCA
42h 46m
2 stops
Japan Airlines Logo
5:45 pm - 10:05 pm
DCA
-
GMP
38h 20m
2 stops
$1,409Japan Airlines
Wed, Nov 18 - Sun, Nov 22
Multiple Airlines Logo
8:00 am - 3:45 pm
GMP
-
DCA
21h 45m
2 stops
Multiple Airlines Logo
8:37 am - 10:05 pm
DCA
-
GMP
23h 28m
2 stops
$1,419Multiple Airlines
Tue, Nov 10 - Wed, Jan 6
Japan Airlines Logo
8:00 am - 7:59 am
GMP
-
DCA
36h 59m
2 stops
Japan Airlines Logo
7:35 am - 9:15 pm
DCA
-
GMP
24h 40m
2 stops
$1,434Japan Airlines
Wed, Aug 5 - Wed, Aug 12
Japan Airlines Logo
12:05 pm - 6:51 pm
GMP
-
DCA
44h 46m
2 stops
Japan Airlines Logo
5:45 pm - 6:20 pm
DCA
-
GMP
34h 35m
2 stops
$1,454Japan Airlines
Wed, Nov 18 - Sun, Nov 22
Japan Airlines Logo
12:05 pm - 6:51 pm
GMP
-
DCA
44h 46m
2 stops
Japan Airlines Logo
5:45 pm - 6:20 pm
DCA
-
GMP
34h 35m
2 stops
$1,458Japan Airlines
Wed, Nov 18 - Sun, Nov 22
Japan Airlines Logo
7:40 pm - 6:51 pm
GMP
-
DCA
37h 11m
2 stops
Japan Airlines Logo
5:45 pm - 6:20 pm
DCA
-
GMP
34h 35m
2 stops
$1,469Japan Airlines
Wed, Nov 18 - Sun, Nov 22
Japan Airlines Logo
8:00 am - 7:05 pm
GMP
-
DCA
24h 05m
2 stops
Japan Airlines Logo
1:00 pm - 10:55 am
DCA
-
GMP
31h 55m
2 stops
$1,477Japan Airlines
Thu, Oct 15 - Thu, Nov 5
Japan Airlines Logo
8:00 am - 4:29 pm
GMP
-
DCA
21h 29m
2 stops
Japan Airlines Logo
8:40 am - 9:15 pm
DCA
-
GMP
23h 35m
2 stops
$1,489Japan Airlines
Wed, Jul 15 - Mon, Jul 20

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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 20
GMP12:05 pmSeoul Gimpo Intl
32h 54m
2 stops
DCA7:59 amWashington, D.C. Reagan-National
Oct 25
DCA5:55 pmWashington, D.C. Reagan-National
39h 10m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,379
Japan Airlines
Jul 10
GMP8:00 amSeoul Gimpo Intl
28h 31m
2 stops
DCA11:31 pmWashington, D.C. Reagan-National
Jul 24
DCA8:40 amWashington, D.C. Reagan-National
23h 35m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,382
Japan Airlines
Nov 18
GMP12:05 pmSeoul Gimpo Intl
42h 46m
2 stops
DCA4:51 pmWashington, D.C. Reagan-National
Nov 22
DCA5:45 pmWashington, D.C. Reagan-National
38h 20m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,409

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

Our best China Eastern deals on Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
China Eastern
Nov 9
GMP12:00 pmSeoul Gimpo Intl
44h 05m
2 stops
DCA6:05 pmWashington, D.C. Reagan-National
Jan 4
DCA11:00 amWashington, D.C. Reagan-National
34h 00m
2 stops
GMP11:00 amSeoul Gimpo Intl
$2,978
China Eastern
Nov 7
GMP12:00 pmSeoul Gimpo Intl
44h 05m
2 stops
DCA6:05 pmWashington, D.C. Reagan-National
Jan 4
DCA11:00 amWashington, D.C. Reagan-National
34h 00m
2 stops
GMP11:00 amSeoul Gimpo Intl
$3,299

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 July 4, 2026.
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

Cheapest round-trip

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 8/25

9:00 am-10:31 pm

2 stops26h 31m

Washington, D.C. Reagan-National

Thu 8/27

6:59 am-10:20 pm

2 stops26h 21m

$1,361

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 10/20

12:05 pm-7:59 am

2 stops32h 54m

Washington, D.C. Reagan-National

Sun 10/25

5:55 pm-10:05 pm

2 stops39h 10m

$1,379

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/18

12:05 pm-4:51 pm

2 stops42h 46m

Washington, D.C. Reagan-National

Sun 11/22

5:45 pm-10:05 pm

2 stops38h 20m

$1,409

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 11/10

8:00 am-3:45 pm

2 stops21h 45m

Washington, D.C. Reagan-National

Wed 1/6

8:37 am-10:05 pm

2 stops23h 28m

$1,419

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 8/5

8:00 am-7:59 am

2 stops36h 59m

Washington, D.C. Reagan-National

Wed 8/12

7:35 am-9:15 pm

2 stops24h 40m

$1,434

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/18

12:05 pm-6:51 pm

2 stops44h 46m

Washington, D.C. Reagan-National

Sun 11/22

5:45 pm-6:20 pm

2 stops34h 35m

$1,454

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/18

12:05 pm-6:51 pm

2 stops44h 46m

Washington, D.C. Reagan-National

Sun 11/22

5:45 pm-6:20 pm

2 stops34h 35m

$1,458

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/18

7:40 pm-6:51 pm

2 stops37h 11m

Washington, D.C. Reagan-National

Sun 11/22

5:45 pm-6:20 pm

2 stops34h 35m

$1,469

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 10/15

8:00 am-7:05 pm

2 stops24h 05m

Washington, D.C. Reagan-National

Thu 11/5

1:00 pm-10:55 am

2 stops31h 55m

$1,477
Quickest round-trip

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 7/15

8:00 am-4:29 pm

2 stops21h 29m

Washington, D.C. Reagan-National

Mon 7/20

8:40 am-9:15 pm

2 stops23h 35m

$1,489

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

Fastest flight time

23h 08m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport takes 23h 08m
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.
Search flight deals

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

  • 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 23h 08m 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.

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

  • How do I get Price Alerts for flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport?

    Search flight deals from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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
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Woodbridge
Fredericksburg
Gaithersburg
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Rockville
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Towson
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Silver Spring
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Springfield
Bethesda
Fairfax
Glen Burnie

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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