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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $635

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 9/8. 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.
Japan Airlines Logo
8:00 am - 11:33 pm
GMP
-
DCA
28h 33m
2 stops
Japan Airlines Logo
11:35 am - 9:15 pm
DCA
-
GMP
20h 40m
2 stops
$1,405Japan Airlines
Wed, Aug 26 - Sun, Aug 30
Japan Airlines Logo
8:00 am - 4:51 pm
GMP
-
DCA
22h 51m
2 stops
Japan Airlines Logo
6:10 am - 6:20 pm
DCA
-
GMP
22h 10m
2 stops
$1,438Japan Airlines
Fri, Nov 20 - Fri, Nov 27
Japan Airlines Logo
8:00 am - 11:33 pm
GMP
-
DCA
28h 33m
2 stops
Japan Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
$1,448Japan Airlines
Mon, Aug 24 - Mon, Aug 31
Japan Airlines Logo
8:00 am - 4:51 pm
GMP
-
DCA
22h 51m
2 stops
Japan Airlines Logo
6:10 am - 10:55 am
DCA
-
GMP
38h 45m
2 stops
$1,465Japan Airlines
Thu, Nov 12 - Mon, Nov 16
Japan Airlines Logo
8:00 am - 11:33 pm
GMP
-
DCA
28h 33m
2 stops
Japan Airlines Logo
6:23 pm - 5:55 pm
DCA
-
GMP
34h 32m
2 stops
$1,466Japan Airlines
Mon, Sep 7 - Mon, Sep 14
Japan Airlines Logo
8:00 am - 6:51 pm
GMP
-
DCA
48h 51m
2 stops
Japan Airlines Logo
5:45 pm - 10:05 pm
DCA
-
GMP
38h 20m
2 stops
$1,467Japan Airlines
Wed, Nov 25 - Sun, Nov 29
Japan Airlines Logo
8:00 am - 6:51 pm
GMP
-
DCA
48h 51m
2 stops
Japan Airlines Logo
5:45 pm - 10:05 pm
DCA
-
GMP
38h 20m
2 stops
$1,470Japan Airlines
Wed, Nov 25 - Sun, Nov 29
Japan Airlines Logo
8:00 am - 7:05 pm
GMP
-
DCA
24h 05m
2 stops
Japan Airlines Logo
11:30 am - 9:15 pm
DCA
-
GMP
20h 45m
2 stops
$1,471Japan Airlines
Mon, Oct 12 - Wed, Oct 14
ANA Logo
7:55 pm - 2:23 pm
GMP
-
DCA
31h 28m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,473ANA
Tue, Sep 1 - Tue, Sep 8
Japan Airlines Logo
12:05 pm - 8:01 am
GMP
-
DCA
32h 56m
2 stops
Japan Airlines Logo
7:40 am - 9:15 pm
DCA
-
GMP
24h 35m
2 stops
$1,474Japan Airlines
Tue, Sep 8 - Thu, Sep 10

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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
Sep 1
GMP7:55 pmSeoul Gimpo Intl
31h 28m
2 stops
DCA2:23 pmWashington, D.C. Reagan-National
Sep 8
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,473
ANA
Oct 11
GMP7:55 pmSeoul Gimpo Intl
37h 14m
2 stops
DCA8:09 pmWashington, D.C. Reagan-National
Oct 15
DCA9:30 amWashington, D.C. Reagan-National
23h 50m
2 stops
GMP10:20 pmSeoul Gimpo Intl
$1,486
ANA
Nov 13
GMP7:45 amSeoul Gimpo Intl
25h 07m
2 stops
DCA6:52 pmWashington, D.C. Reagan-National
Nov 18
DCA8:30 amWashington, D.C. Reagan-National
24h 00m
2 stops
GMP10:30 pmSeoul Gimpo Intl
$1,496

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
Aug 26
GMP8:00 amSeoul Gimpo Intl
28h 33m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
Aug 30
DCA11:35 amWashington, D.C. Reagan-National
20h 40m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,405
Japan Airlines
Nov 20
GMP8:00 amSeoul Gimpo Intl
22h 51m
2 stops
DCA4:51 pmWashington, D.C. Reagan-National
Nov 27
DCA6:10 amWashington, D.C. Reagan-National
22h 10m
2 stops
GMP6:20 pmSeoul Gimpo Intl
$1,438
Japan Airlines
Aug 24
GMP8:00 amSeoul Gimpo Intl
28h 33m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
Aug 31
DCA6:00 amWashington, D.C. Reagan-National
26h 15m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,448

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 19, 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

Wed 8/26

8:00 am-11:33 pm

2 stops28h 33m

Washington, D.C. Reagan-National

Sun 8/30

11:35 am-9:15 pm

2 stops20h 40m

$1,405

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 11/20

8:00 am-4:51 pm

2 stops22h 51m

Washington, D.C. Reagan-National

Fri 11/27

6:10 am-6:20 pm

2 stops22h 10m

$1,438

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 8/24

8:00 am-11:33 pm

2 stops28h 33m

Washington, D.C. Reagan-National

Mon 8/31

6:00 am-9:15 pm

2 stops26h 15m

$1,448

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 11/12

8:00 am-4:51 pm

2 stops22h 51m

Washington, D.C. Reagan-National

Mon 11/16

6:10 am-10:55 am

2 stops38h 45m

$1,465

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 9/7

8:00 am-11:33 pm

2 stops28h 33m

Washington, D.C. Reagan-National

Mon 9/14

6:23 pm-5:55 pm

2 stops34h 32m

$1,466

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/25

8:00 am-6:51 pm

2 stops48h 51m

Washington, D.C. Reagan-National

Sun 11/29

5:45 pm-10:05 pm

2 stops38h 20m

$1,467

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/25

8:00 am-6:51 pm

2 stops48h 51m

Washington, D.C. Reagan-National

Sun 11/29

5:45 pm-10:05 pm

2 stops38h 20m

$1,470
Quickest round-trip

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 10/12

8:00 am-7:05 pm

2 stops24h 05m

Washington, D.C. Reagan-National

Wed 10/14

11:30 am-9:15 pm

2 stops20h 45m

$1,471

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 9/1

7:55 pm-2:23 pm

2 stops31h 28m

Washington, D.C. Reagan-National

Tue 9/8

3:30 pm-11:05 am

2 stops30h 35m

$1,473

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 9/8

12:05 pm-8:01 am

2 stops32h 56m

Washington, D.C. Reagan-National

Thu 9/10

7:40 am-9:15 pm

2 stops24h 35m

$1,474

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. 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

Fastest flight time

19h 53m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport takes 19h 53m
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 19h 53m 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
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Towson
Manassas
Silver Spring
Colonial Beach
Springfield
Tysons
Fairfax
Bethesda
College Park

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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