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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $655

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 4/3. 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 - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
$1,048ANA
Mon, May 11 - Tue, Aug 18
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
$1,057ANA
Wed, Jul 1 - Wed, Jul 29
ANA Logo
12:40 pm - 10:05 am
GMP
-
IAD
34h 25m
1 stop
ANA Logo
8:35 am - 10:20 pm
IAD
-
GMP
24h 45m
2 stops
$1,080ANA
Mon, May 11 - Tue, Aug 18
ANA Logo
7:55 pm - 2:08 pm
GMP
-
IAD
31h 13m
2 stops
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
$1,089ANA
Wed, Jul 1 - Wed, Jul 29
ANA Logo
7:40 am - 7:28 pm
GMP
-
IAD
24h 48m
2 stops
ANA Logo
8:35 am - 10:20 pm
IAD
-
GMP
24h 45m
2 stops
$1,097ANA
Mon, May 11 - Tue, Aug 18
Multiple Airlines Logo
7:20 am - 7:30 pm
GMP
-
IAD
25h 10m
2 stops
Multiple Airlines Logo
11:00 pm - 1:05 pm
IAD
-
GMP
25h 05m
1 stop
$1,107Multiple Airlines
Fri, Apr 3 - Fri, Apr 10
Multiple Airlines Logo
7:20 am - 7:30 pm
GMP
-
IAD
25h 10m
2 stops
Multiple Airlines Logo
11:00 pm - 1:05 pm
IAD
-
GMP
25h 05m
1 stop
$1,109Multiple Airlines
Fri, Apr 3 - Fri, Apr 10
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
$1,112ANA
Wed, Jul 8 - Wed, Aug 12
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
ANA Logo
12:15 pm - 11:05 am
IAD
-
GMP
33h 50m
1 stop
$1,124ANA
Wed, Apr 22 - Wed, Apr 29
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
$1,266ANA
Mon, Jun 22 - Mon, Jul 13

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

Our best ANA deals on Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
ANA
May 11
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Aug 18
IAD12:15 pmWashington, D.C. Dulles Intl
21h 05m
1 stop
GMP10:20 pmSeoul Gimpo Intl
$1,048
ANA
Jul 1
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Jul 29
IAD12:15 pmWashington, D.C. Dulles Intl
21h 05m
1 stop
GMP10:20 pmSeoul Gimpo Intl
$1,057
ANA
May 11
GMP12:40 pmSeoul Gimpo Intl
34h 25m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Aug 18
IAD8:35 amWashington, D.C. Dulles Intl
24h 45m
2 stops
GMP10:20 pmSeoul Gimpo Intl
$1,080

Air China flights from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport

Our best Air China deals on Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Air China
Apr 6
GMP2:25 pmSeoul Gimpo Intl
42h 05m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Apr 17
IAD11:00 pmWashington, D.C. Dulles Intl
25h 05m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$1,432
Air China
Jun 29
GMP2:25 pmSeoul Gimpo Intl
42h 05m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Jul 31
IAD11:00 pmWashington, D.C. Dulles Intl
25h 05m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$1,745

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 5/11

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Tue 8/18

12:15 pm-10:20 pm

1 stop21h 05m

$1,048

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 7/1

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 7/29

12:15 pm-10:20 pm

1 stop21h 05m

$1,057

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 5/11

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Tue 8/18

8:35 am-10:20 pm

2 stops24h 45m

$1,080

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 7/1

7:55 pm-2:08 pm

2 stops31h 13m

Washington, D.C. Dulles Intl

Wed 7/29

12:15 pm-10:20 pm

1 stop21h 05m

$1,089

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 5/11

7:40 am-7:28 pm

2 stops24h 48m

Washington, D.C. Dulles Intl

Tue 8/18

8:35 am-10:20 pm

2 stops24h 45m

$1,097

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 4/3

7:20 am-7:30 pm

2 stops25h 10m

Washington, D.C. Dulles Intl

Fri 4/10

11:00 pm-1:05 pm

1 stop25h 05m

$1,107

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 4/3

7:20 am-7:30 pm

2 stops25h 10m

Washington, D.C. Dulles Intl

Fri 4/10

11:00 pm-1:05 pm

1 stop25h 05m

$1,109

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 7/8

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 8/12

12:15 pm-10:20 pm

1 stop21h 05m

$1,112

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 4/22

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 4/29

12:15 pm-11:05 am

1 stop33h 50m

$1,124

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 6/22

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 7/13

12:15 pm-10:20 pm

1 stop21h 05m

$1,266

Flights are sorted by cheapest round-trip flights 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. Dulles Intl 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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Sunday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,350. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport for around $1,671.

When to book flights from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl Airport (GMP to IAD) 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. Dulles Intl Airport

Fastest flight time

25h 10m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport takes 25h 10m
There are no direct flights from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport.
Search flight deals

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

    Seoul Gimpo Intl and Washington, D.C. Dulles Intl are 6925.2 mi apart from one another. A reasonable flight in good conditions will take 25h 10m.

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

    Prices for flights from Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

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

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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
Winchester
Waldorf
Woodbridge
Colonial Beach
Laurel
Silver Spring
Tysons
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Bethesda

Why use momondo?

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

It is quick and easy to find Seoul to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Flights from Seoul to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Seoul and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Seoul to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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