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Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $629

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 9/29. 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

ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,037ANA
Find Deal
Sun, Dec 14 - Thu, Jan 22
ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
1:05 pm - 11:20 amIAD-GMP
32h 15m2 stops
$1,042ANA
Find Deal
Sun, Dec 14 - Thu, Jan 22
ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,046ANA
Find Deal
Wed, Jan 14 - Wed, Mar 4
ANA Logo
12:25 pm - 9:10 amGMP-IAD
34h 45m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,055ANA
Find Deal
Mon, Dec 15 - Fri, Feb 27
ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,056ANA
Find Deal
Mon, Dec 15 - Fri, Feb 27
ANA Logo
12:25 pm - 9:10 amGMP-IAD
34h 45m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,067ANA
Find Deal
Sun, Dec 14 - Wed, Jan 21
ANA Logo
12:25 pm - 9:10 amGMP-IAD
34h 45m1 stop
ANA Logo
12:35 pm - 6:35 pmIAD-GMP
40h 00m2 stops
$1,086ANA
Find Deal
Wed, Jan 14 - Wed, Mar 4
ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$1,116ANA
Find Deal
Tue, Nov 25 - Thu, Dec 4
Logo
7:55 am - 4:47 pmGMP-IAD
21h 52m2 stops
Logo
6:04 am - 10:05 pmIAD-GMP
26h 01m2 stops
$1,184
Find Deal
Fri, Oct 24 - Sun, Nov 9
Logo
8:00 am - 10:18 pmGMP-IAD
28h 18m2 stops
Logo
6:32 am - 10:05 pmIAD-GMP
25h 33m2 stops
$1,349
Find Deal
Wed, Jan 14 - Wed, Mar 4

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
Dec 14
GMP7:50 pmSeoul Gimpo Intl
27h 20m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Jan 22
IAD11:05 amWashington, D.C. Dulles Intl
21h 25m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$1,037
Find similar
ANA
Dec 14
GMP7:50 pmSeoul Gimpo Intl
27h 20m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Jan 22
IAD1:05 pmWashington, D.C. Dulles Intl
32h 15m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,042
Find similar
ANA
Jan 14
GMP7:50 pmSeoul Gimpo Intl
27h 20m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Mar 4
IAD11:05 amWashington, D.C. Dulles Intl
21h 25m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$1,046
Find similar

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 September 11, 2025.
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

Sun 12/14

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Thu 1/22

11:05 am-10:30 pm

1 stop21h 25m

$1,037

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sun 12/14

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Thu 1/22

1:05 pm-11:20 am

2 stops32h 15m

$1,042

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 1/14

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Wed 3/4

11:05 am-10:30 pm

1 stop21h 25m

$1,046

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 12/15

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Fri 2/27

11:05 am-10:30 pm

1 stop21h 25m

$1,055

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 12/15

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Fri 2/27

11:05 am-10:30 pm

1 stop21h 25m

$1,056

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sun 12/14

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Wed 1/21

11:05 am-10:30 pm

1 stop21h 25m

$1,067

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 1/14

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Wed 3/4

12:35 pm-6:35 pm

2 stops40h 00m

$1,086

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 11/25

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Thu 12/4

11:05 am-10:30 pm

1 stop21h 25m

$1,116

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 10/24

7:55 am-4:47 pm

2 stops21h 52m

Washington, D.C. Dulles Intl

Sun 11/9

6:04 am-10:05 pm

2 stops26h 01m

$1,184

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 1/14

8:00 am-10:18 pm

2 stops28h 18m

Washington, D.C. Dulles Intl

Wed 3/4

6:32 am-10:05 pm

2 stops25h 33m

$1,349

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 Saturday 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 $1,371. 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. Dulles Intl Airport for around $1,646.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Seoul Gimpo Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $922 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,520 on average. Flights to Washington, D.C. Dulles Intl Airport from Seoul Gimpo Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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.
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  • 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 21h 52m.

  • 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie

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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