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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $520

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 8/18. 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
12:40 pm - 10:05 am
GMP
-
IAD
34h 25m
1 stop
ANA Logo
1:05 pm - 6:35 pm
IAD
-
GMP
39h 30m
2 stops
$1,033ANA
Wed, Sep 16 - Wed, Nov 11
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
3:30 pm - 11:05 am
IAD
-
GMP
30h 35m
2 stops
$1,036ANA
Wed, Jun 24 - Mon, Sep 28
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
3:30 pm - 10:20 pm
IAD
-
GMP
41h 50m
2 stops
$1,037ANA
Wed, Jun 24 - Wed, Sep 30
ANA Logo
7:55 pm - 7:26 am
GMP
-
IAD
48h 31m
2 stops
ANA Logo
3:30 pm - 11:05 am
IAD
-
GMP
54h 35m
2 stops
$1,049ANA
Wed, Jun 10 - Mon, Jul 20
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
$1,053ANA
Wed, Jun 10 - Wed, Sep 16
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
$1,055ANA
Wed, Jun 10 - Wed, Sep 16
Japan Airlines Logo
12:05 pm - 11:13 pm
GMP
-
DCA
24h 08m
2 stops
Japan Airlines Logo
7:24 pm - 10:40 am
DCA
-
GMP
26h 16m
2 stops
$1,407Japan Airlines
Tue, Jun 2 - Wed, Jul 22
Multiple Airlines Logo
12:05 pm - 11:13 pm
GMP
-
DCA
24h 08m
2 stops
Multiple Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
$1,484Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Japan Airlines Logo
7:15 pm - 12:58 pm
GMP
-
DCA
54h 43m
2 stops
Japan Airlines Logo
7:22 pm - 9:15 pm
DCA
-
GMP
36h 53m
2 stops
$1,492Japan Airlines
Wed, Sep 9 - Sat, Sep 12
Japan Airlines Logo
7:15 pm - 4:29 pm
GMP
-
DCA
34h 14m
2 stops
Japan Airlines Logo
6:59 pm - 5:55 pm
DCA
-
GMP
33h 56m
2 stops
$1,493Japan Airlines
Mon, May 25 - Sun, May 31

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ANA flights from Seoul Gimpo Intl Airport to Washington, D.C.

Our best ANA deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets
ANA
Sep 16
GMP12:40 pmSeoul Gimpo Intl
34h 25m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Nov 11
IAD1:05 pmWashington, D.C. Dulles Intl
39h 30m
2 stops
GMP6:35 pmSeoul Gimpo Intl
$1,033
ANA
Jun 24
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 28
IAD3:30 pmWashington, D.C. Dulles Intl
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
$1,036
ANA
Jun 24
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 30
IAD3:30 pmWashington, D.C. Dulles Intl
41h 50m
2 stops
GMP10:20 pmSeoul Gimpo Intl
$1,037

Japan Airlines flights from Seoul Gimpo Intl Airport to Washington, D.C.

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets
Japan Airlines
Jun 2
GMP12:05 pmSeoul Gimpo Intl
24h 08m
2 stops
DCA11:13 pmWashington, D.C. Reagan-National
Jul 22
DCA7:24 pmWashington, D.C. Reagan-National
26h 16m
2 stops
GMP10:40 amSeoul Gimpo Intl
$1,407
Japan Airlines
Sep 9
GMP7:15 pmSeoul Gimpo Intl
54h 43m
2 stops
DCA12:58 pmWashington, D.C. Reagan-National
Sep 12
DCA7:22 pmWashington, D.C. Reagan-National
36h 53m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,492
Japan Airlines
May 25
GMP7:15 pmSeoul Gimpo Intl
34h 14m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
May 31
DCA6:59 pmWashington, D.C. Reagan-National
33h 56m
2 stops
GMP5:55 pmSeoul Gimpo Intl
$1,493

momondo Fare Finder

 
Customize your flight search to find flights from Seoul Gimpo Intl Airport to Washington, D.C. 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 April 20, 2026.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/16

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Wed 11/11

1:05 pm-6:35 pm

2 stops39h 30m

$1,033

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/24

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 9/28

3:30 pm-11:05 am

2 stops30h 35m

$1,036

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/24

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 9/30

3:30 pm-10:20 pm

2 stops41h 50m

$1,037

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/10

7:55 pm-7:26 am

2 stops48h 31m

Washington, D.C. Dulles Intl

Mon 7/20

3:30 pm-11:05 am

2 stops54h 35m

$1,049
Quickest round-trip

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/10

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 9/16

12:15 pm-10:20 pm

1 stop21h 05m

$1,053

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/10

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 9/16

12:15 pm-10:20 pm

1 stop21h 05m

$1,055

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 6/2

12:05 pm-11:13 pm

2 stops24h 08m

Washington, D.C. Reagan-National

Wed 7/22

7:24 pm-10:40 am

2 stops26h 16m

$1,407

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 6/1

12:05 pm-11:13 pm

2 stops24h 08m

Washington, D.C. Reagan-National

Mon 6/8

6:00 am-9:15 pm

2 stops26h 15m

$1,484

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 9/9

7:15 pm-12:58 pm

2 stops54h 43m

Washington, D.C. Reagan-National

Sat 9/12

7:22 pm-9:15 pm

2 stops36h 53m

$1,492

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Mon 5/25

7:15 pm-4:29 pm

2 stops34h 14m

Washington, D.C. Reagan-National

Sun 5/31

6:59 pm-5:55 pm

2 stops33h 56m

$1,493

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.

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 day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Seoul Gimpo Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $1,258. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seoul Gimpo Intl Airport to Washington, D.C. for around $1,655.

Can stopping save me money on Seoul Gimpo Intl Airport to Washington, D.C. flights?

You could potentially save up to 18% on your flight if you consider stops on a Seoul Gimpo Intl Airport to Washington, D.C. flight.

When to book flights from Seoul Gimpo Intl Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul Gimpo Intl Airport to Washington, D.C. 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. (GMP to WAS) 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.

Fastest flight time

21h 16m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. takes 21h 16m
There are no direct flights from Seoul Gimpo Intl Airport to Washington, D.C.. There are no popular flight routes from Seoul Gimpo Intl Airport to Washington, D.C..
Search flight deals

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

  • How far is Seoul Gimpo Intl to Washington, D.C. by plane?

    The distance between Seoul Gimpo Intl and Washington, D.C. is about 6935.3 mi. Typically, this will take 21h 16m by plane in normal conditions.

  • When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Washington, D.C.?

    Prices for flights from Seoul Gimpo Intl Airport to Washington, D.C. refresh daily.

  • How old do you have to be to fly from Seoul Gimpo Intl Airport to Washington, D.C.?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. 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.. 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
Tysons
Linthicum Heights
Bethesda
Fairfax
Springfield
College Park

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?

Finding the right flight to Washington, D.C. from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seoul to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Seoul.

I’m not ready to book a flight from Seoul to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seoul to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport