Latest deals
Insights
When to book
FAQs
Price Alerts

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.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

ANA Logo
7:50 pm - 2:10 pmGMP-DCA
31h 20m2 stops
ANA Logo
7:30 am - 11:20 amDCA-GMP
37h 50m2 stops
$1,091ANA
Find Deal
Wed, Oct 29 - Wed, Nov 5
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
7:50 pm - 11:58 amGMP-DCA
30h 08m2 stops
ANA Logo
2:00 pm - 11:20 amDCA-GMP
31h 20m2 stops
$1,138ANA
Find Deal
Thu, Feb 5 - Sun, Feb 8
ANA Logo
7:50 pm - 1:13 pmGMP-DCA
31h 23m2 stops
ANA Logo
2:00 pm - 10:30 pmDCA-GMP
42h 30m2 stops
$1,139ANA
Find Deal
Thu, Feb 5 - Sun, Feb 8
Japan Airlines Logo
8:00 am - 7:50 amGMP-DCA
36h 50m2 stops
Japan Airlines Logo
6:10 am - 10:05 pmDCA-GMP
25h 55m2 stops
$1,226Japan Airlines
Find Deal
Mon, Oct 27 - Fri, Nov 14
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
6:38 am - 9:50 pmDCA-GMP
26h 12m2 stops
$1,266Japan Airlines
Find Deal
Fri, Oct 10 - Tue, Oct 14
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
$1,292Japan Airlines
Find Deal
Wed, Feb 11 - Mon, Mar 9
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
$1,294Japan Airlines
Find Deal
Wed, Feb 11 - Mon, Mar 9
Logo
7:55 am - 4:16 pmGMP-DCA
21h 21m2 stops
Logo
7:44 pm - 10:55 amDCA-GMP
25h 11m2 stops
$1,297
Find Deal
Fri, Oct 24 - Sun, Nov 9

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 27
GMP8:00 amSeoul Gimpo Intl
36h 50m
2 stops
DCA7:50 amWashington, D.C. Reagan-National
Nov 14
DCA6:10 amWashington, D.C. Reagan-National
25h 55m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,226
Find similar
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 14
DCA6:38 amWashington, D.C. Reagan-National
26h 12m
2 stops
GMP9:50 pmSeoul Gimpo Intl
$1,266
Find similar

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
Oct 29
GMP7:50 pmSeoul Gimpo Intl
31h 20m
2 stops
DCA2:10 pmWashington, D.C. Reagan-National
Nov 5
DCA7:30 amWashington, D.C. Reagan-National
37h 50m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,091
Find similar
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
GMP7:50 pmSeoul Gimpo Intl
30h 08m
2 stops
DCA11:58 amWashington, D.C. Reagan-National
Feb 8
DCA2:00 pmWashington, D.C. Reagan-National
31h 20m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,138
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 15, 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

Wed 10/29

7:50 pm-2:10 pm

2 stops31h 20m

Washington, D.C. Reagan-National

Wed 11/5

7:30 am-11:20 am

2 stops37h 50m

$1,091

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

7:50 pm-11:58 am

2 stops30h 08m

Washington, D.C. Reagan-National

Sun 2/8

2:00 pm-11:20 am

2 stops31h 20m

$1,138

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 2/5

7:50 pm-1:13 pm

2 stops31h 23m

Washington, D.C. Reagan-National

Sun 2/8

2:00 pm-10:30 pm

2 stops42h 30m

$1,139

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 10/27

8:00 am-7:50 am

2 stops36h 50m

Washington, D.C. Reagan-National

Fri 11/14

6:10 am-10:05 pm

2 stops25h 55m

$1,226

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

Tue 10/14

6:38 am-9:50 pm

2 stops26h 12m

$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

$1,292

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

$1,294

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 10/24

7:55 am-4:16 pm

2 stops21h 21m

Washington, D.C. Reagan-National

Sun 11/9

7:44 pm-10:55 am

2 stops25h 11m

$1,297

Flights are sorted by cheapest round-trip flights first.

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

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.
Search flight deals

  • 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.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.