Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $678

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 6/9. 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

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 - 1:59 pm
GMP
-
DCA
31h 04m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,061ANA
Thu, Oct 8 - Wed, Oct 14
Japan Airlines Logo
12:05 pm - 8:00 am
GMP
-
DCA
32h 55m
2 stops
Japan Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
$1,174Japan Airlines
Mon, Jun 8 - Thu, Jun 11
Japan Airlines Logo
12:05 pm - 7:59 am
GMP
-
DCA
32h 54m
2 stops
Japan Airlines Logo
6:40 pm - 10:40 am
DCA
-
GMP
27h 00m
2 stops
$1,177Japan Airlines
Thu, Jun 4 - Tue, Jun 16
ANA Logo
7:55 pm - 1:59 pm
GMP
-
DCA
31h 04m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,188ANA
Thu, Oct 8 - Wed, Oct 14
Japan Airlines Logo
12:05 pm - 7:49 am
GMP
-
DCA
32h 44m
2 stops
Japan Airlines Logo
7:06 pm - 5:55 pm
DCA
-
GMP
33h 49m
2 stops
$1,191Japan Airlines
Wed, Oct 7 - Tue, Oct 13
Japan Airlines Logo
12:05 pm - 10:57 pm
GMP
-
DCA
23h 52m
2 stops
Japan Airlines Logo
7:30 am - 9:15 pm
DCA
-
GMP
24h 45m
2 stops
$1,213Japan Airlines
Wed, Oct 7 - Tue, Oct 13
Japan Airlines Logo
12:05 pm - 7:59 am
GMP
-
DCA
32h 54m
2 stops
Japan Airlines Logo
7:25 pm - 10:40 am
DCA
-
GMP
26h 15m
2 stops
$1,231Japan Airlines
Thu, Jun 4 - Sun, Jul 26
Japan Airlines Logo
8:00 am - 10:57 pm
GMP
-
DCA
27h 57m
2 stops
Japan Airlines Logo
3:50 pm - 10:05 pm
DCA
-
GMP
41h 15m
2 stops
$1,274Japan Airlines
Thu, Oct 22 - Mon, Oct 26
Japan Airlines Logo
7:15 pm - 7:59 am
GMP
-
DCA
49h 44m
2 stops
Japan Airlines Logo
6:59 pm - 5:55 pm
DCA
-
GMP
33h 56m
2 stops
$1,277Japan Airlines
Mon, May 25 - Sun, May 31
Japan Airlines Logo
7:15 pm - 7:59 am
GMP
-
DCA
49h 44m
2 stops
Japan Airlines Logo
6:59 pm - 10:40 am
DCA
-
GMP
50h 41m
2 stops
$1,280Japan Airlines
Mon, May 25 - Sun, May 31

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

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 8
GMP7:55 pmSeoul Gimpo Intl
31h 04m
2 stops
DCA1:59 pmWashington, D.C. Reagan-National
Oct 14
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,061
ANA
Oct 8
GMP7:55 pmSeoul Gimpo Intl
31h 04m
2 stops
DCA1:59 pmWashington, D.C. Reagan-National
Oct 14
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,188
ANA
Oct 2
GMP7:55 pmSeoul Gimpo Intl
31h 04m
2 stops
DCA1:59 pmWashington, D.C. Reagan-National
Oct 10
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,413

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
GMP12:05 pmSeoul Gimpo Intl
32h 55m
2 stops
DCA8:00 amWashington, D.C. Reagan-National
Jun 11
DCA6:00 amWashington, D.C. Reagan-National
26h 15m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,174
Japan Airlines
Jun 4
GMP12:05 pmSeoul Gimpo Intl
32h 54m
2 stops
DCA7:59 amWashington, D.C. Reagan-National
Jun 16
DCA6:40 pmWashington, D.C. Reagan-National
27h 00m
2 stops
GMP10:40 amSeoul Gimpo Intl
$1,177
Japan Airlines
Oct 7
GMP12:05 pmSeoul Gimpo Intl
32h 44m
2 stops
DCA7:49 amWashington, D.C. Reagan-National
Oct 13
DCA7:06 pmWashington, D.C. Reagan-National
33h 49m
2 stops
GMP5:55 pmSeoul Gimpo Intl
$1,191

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 3, 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

Thu 10/8

7:55 pm-1:59 pm

2 stops31h 04m

Washington, D.C. Reagan-National

Wed 10/14

3:30 pm-11:05 am

2 stops30h 35m

$1,061

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 6/8

12:05 pm-8:00 am

2 stops32h 55m

Washington, D.C. Reagan-National

Thu 6/11

6:00 am-9:15 pm

2 stops26h 15m

$1,174

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 6/4

12:05 pm-7:59 am

2 stops32h 54m

Washington, D.C. Reagan-National

Tue 6/16

6:40 pm-10:40 am

2 stops27h 00m

$1,177

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 10/8

7:55 pm-1:59 pm

2 stops31h 04m

Washington, D.C. Reagan-National

Wed 10/14

3:30 pm-11:05 am

2 stops30h 35m

$1,188

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 10/7

12:05 pm-7:49 am

2 stops32h 44m

Washington, D.C. Reagan-National

Tue 10/13

7:06 pm-5:55 pm

2 stops33h 49m

$1,191
Quickest round-trip

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 10/7

12:05 pm-10:57 pm

2 stops23h 52m

Washington, D.C. Reagan-National

Tue 10/13

7:30 am-9:15 pm

2 stops24h 45m

$1,213

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 6/4

12:05 pm-7:59 am

2 stops32h 54m

Washington, D.C. Reagan-National

Sun 7/26

7:25 pm-10:40 am

2 stops26h 15m

$1,231

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 10/22

8:00 am-10:57 pm

2 stops27h 57m

Washington, D.C. Reagan-National

Mon 10/26

3:50 pm-10:05 pm

2 stops41h 15m

$1,274

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 5/25

7:15 pm-7:59 am

2 stops49h 44m

Washington, D.C. Reagan-National

Sun 5/31

6:59 pm-5:55 pm

2 stops33h 56m

$1,277

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 5/25

7:15 pm-7:59 am

2 stops49h 44m

Washington, D.C. Reagan-National

Sun 5/31

6:59 pm-10:40 am

2 stops50h 41m

$1,280

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

Fastest flight time

20h 52m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. Reagan-National Airport takes 20h 52m
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 20h 52m 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
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
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.

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
Tue 6/2
Tue 6/9
By creating a price alert you accept our terms of use and privacy policy.

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