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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $706

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 9/5. 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

Enter your travel dates to find the best prices.
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
$1,413ANA
Wed, Aug 26 - Wed, Sep 9
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
$1,554ANA
Wed, Sep 2 - Fri, Sep 11
Japan Airlines Logo
8:00 am - 4:29 pm
GMP
-
DCA
21h 29m
2 stops
Japan Airlines Logo
9:59 am - 9:15 pm
DCA
-
GMP
22h 16m
2 stops
$1,654Japan Airlines
Tue, Sep 8 - Wed, Oct 14
Multiple Airlines Logo
8:00 am - 4:30 pm
GMP
-
DCA
21h 30m
2 stops
Multiple Airlines Logo
6:59 am - 5:55 pm
DCA
-
GMP
21h 56m
2 stops
$1,664Multiple Airlines
Tue, Jun 16 - Tue, Sep 8
ANA Logo
7:55 pm - 8:09 pm
GMP
-
DCA
37h 14m
2 stops
ANA Logo
3:30 pm - 10:20 pm
DCA
-
GMP
41h 50m
2 stops
$1,680ANA
Mon, Aug 17 - Tue, Aug 25
ANA Logo
7:55 pm - 2:22 pm
GMP
-
DCA
31h 27m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,719ANA
Thu, Jun 18 - Fri, Jul 10
ANA Logo
12:40 pm - 2:22 pm
GMP
-
DCA
38h 42m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,744ANA
Wed, Jun 24 - Tue, Jul 7
Japan Airlines Logo
12:05 pm - 10:59 pm
GMP
-
DCA
23h 54m
2 stops
Japan Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
$1,747Japan Airlines
Sat, Sep 12 - Sat, Sep 19
ANA Logo
7:55 pm - 9:10 pm
GMP
-
DCA
38h 15m
2 stops
ANA Logo
3:30 pm - 10:20 pm
DCA
-
GMP
41h 50m
2 stops
$1,748ANA
Thu, Jul 2 - Tue, Jul 7
Multiple Airlines Logo
8:10 am - 10:31 pm
GMP
-
DCA
27h 21m
2 stops
Multiple Airlines Logo
11:00 am - 9:25 pm
DCA
-
GMP
21h 25m
2 stops
$1,750Multiple Airlines
Fri, Jul 10 - Tue, Jul 14

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
Aug 26
GMP7:55 pmSeoul Gimpo Intl
31h 28m
2 stops
DCA2:23 pmWashington, D.C. Reagan-National
Sep 9
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,413
ANA
Sep 2
GMP7:55 pmSeoul Gimpo Intl
31h 28m
2 stops
DCA2:23 pmWashington, D.C. Reagan-National
Sep 11
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,554
ANA
Aug 17
GMP7:55 pmSeoul Gimpo Intl
37h 14m
2 stops
DCA8:09 pmWashington, D.C. Reagan-National
Aug 25
DCA3:30 pmWashington, D.C. Reagan-National
41h 50m
2 stops
GMP10:20 pmSeoul Gimpo Intl
$1,680

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
Jun 8
GMP8:00 amSeoul Gimpo Intl
28h 14m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
Jun 15
DCA6:00 amWashington, D.C. Reagan-National
22h 55m
2 stops
GMP5:55 pmSeoul Gimpo Intl
$1,643
Japan Airlines
Sep 8
GMP8:00 amSeoul Gimpo Intl
21h 29m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
Oct 14
DCA9:59 amWashington, D.C. Reagan-National
22h 16m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,654
Japan Airlines
Jun 1
GMP8:00 amSeoul Gimpo Intl
28h 13m
2 stops
DCA11:13 pmWashington, D.C. Reagan-National
Jun 15
DCA6:00 amWashington, D.C. Reagan-National
22h 55m
2 stops
GMP5:55 pmSeoul Gimpo Intl
$1,684

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 May 31, 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

7:55 pm-2:23 pm

2 stops31h 28m

Washington, D.C. Reagan-National

Wed 9/9

3:30 pm-11:05 am

2 stops30h 35m

$1,413

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 9/2

7:55 pm-2:23 pm

2 stops31h 28m

Washington, D.C. Reagan-National

Fri 9/11

3:30 pm-11:05 am

2 stops30h 35m

$1,554

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 9/8

8:00 am-4:29 pm

2 stops21h 29m

Washington, D.C. Reagan-National

Wed 10/14

9:59 am-9:15 pm

2 stops22h 16m

$1,654
Quickest round-trip

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 6/16

8:00 am-4:30 pm

2 stops21h 30m

Washington, D.C. Reagan-National

Tue 9/8

6:59 am-5:55 pm

2 stops21h 56m

$1,664

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 8/17

7:55 pm-8:09 pm

2 stops37h 14m

Washington, D.C. Reagan-National

Tue 8/25

3:30 pm-10:20 pm

2 stops41h 50m

$1,680

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 6/18

7:55 pm-2:22 pm

2 stops31h 27m

Washington, D.C. Reagan-National

Fri 7/10

3:30 pm-11:05 am

2 stops30h 35m

$1,719

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 6/24

12:40 pm-2:22 pm

2 stops38h 42m

Washington, D.C. Reagan-National

Tue 7/7

3:30 pm-11:05 am

2 stops30h 35m

$1,744

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Sat 9/12

12:05 pm-10:59 pm

2 stops23h 54m

Washington, D.C. Reagan-National

Sat 9/19

6:00 am-9:15 pm

2 stops26h 15m

$1,747

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 7/2

7:55 pm-9:10 pm

2 stops38h 15m

Washington, D.C. Reagan-National

Tue 7/7

3:30 pm-10:20 pm

2 stops41h 50m

$1,748

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 7/10

8:10 am-10:31 pm

2 stops27h 21m

Washington, D.C. Reagan-National

Tue 7/14

11:00 am-9:25 pm

2 stops21h 25m

$1,750

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

21h 29m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport takes 21h 29m
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 21h 29m 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
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Rockville
Towson
Manassas
Linthicum Heights
Tysons
Springfield
Bethesda
Fairfax
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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