Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $770

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 11/8. 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

Enter your travel dates to find the best prices.
ANA Logo
7:50 pm - 9:10 amGMP-IAD
27h 20m1 stop
ANA Logo
12:15 pm - 10:30 pmIAD-GMP
21h 15m1 stop
$1,032ANA
Find Deal
Wed, Feb 11 - Mon, Mar 9
ANA Logo
12:25 pm - 9:10 amGMP-IAD
34h 45m1 stop
ANA Logo
1:02 pm - 10:30 pmIAD-GMP
43h 28m2 stops
$1,064ANA
Find Deal
Sun, Feb 1 - Mon, Feb 23
ANA Logo
7:50 pm - 11:46 amGMP-IAD
29h 56m2 stops
ANA Logo
8:20 am - 11:20 amIAD-GMP
37h 00m2 stops
$1,070ANA
Find Deal
Sun, Feb 1 - Mon, Feb 23
ANA Logo
7:45 am - 7:29 amGMP-IAD
37h 44m2 stops
ANA Logo
3:30 pm - 10:20 pmIAD-GMP
41h 50m2 stops
$1,080ANA
Find Deal
Fri, Mar 6 - Tue, Apr 21
Multiple Airlines Logo
3:50 pm - 8:26 pmGMP-IAD
18h 36m2 stops
Multiple Airlines Logo
9:00 am - 10:30 pmIAD-GMP
23h 30m2 stops
$1,111Multiple Airlines
Find Deal
Wed, Dec 24 - Wed, Jan 21
Japan Airlines Logo
8:00 am - 4:26 pmGMP-IAD
46h 26m2 stops
Japan Airlines Logo
7:00 am - 10:55 amIAD-GMP
37h 55m2 stops
$1,329Japan Airlines
Find Deal
Tue, Jan 27 - Thu, Feb 26
Japan Airlines Logo
12:05 pm - 4:26 pmGMP-IAD
42h 21m2 stops
Japan Airlines Logo
7:00 am - 10:05 pmIAD-GMP
25h 05m2 stops
$1,373Japan Airlines
Find Deal
Tue, Jan 27 - Wed, Feb 25
Multiple Airlines Logo
8:00 am - 4:11 pmGMP-IAD
22h 11m2 stops
Multiple Airlines Logo
7:34 am - 10:05 pmIAD-GMP
24h 31m2 stops
$1,563Multiple Airlines
Find Deal
Thu, Nov 20 - Wed, Dec 3
Air China Logo
8:50 am - 6:30 pmGMP-IAD
23h 40m1 stop
Air China Logo
10:00 pm - 1:05 pmIAD-GMP
25h 05m1 stop
$1,756Air China
Find Deal
Tue, Dec 23 - Fri, Jan 2
Air China Logo
8:50 am - 6:30 pmGMP-IAD
23h 40m1 stop
Air China Logo
10:00 pm - 1:05 pmIAD-GMP
25h 05m1 stop
$1,774Air China
Find Deal
Tue, Dec 23 - Fri, Jan 2

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
Feb 11
GMP7:50 pmSeoul Gimpo Intl
27h 20m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Mar 9
IAD12:15 pmWashington, D.C. Dulles Intl
21h 15m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$1,032
Find similar
ANA
Feb 1
GMP12:25 pmSeoul Gimpo Intl
34h 45m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Feb 23
IAD1:02 pmWashington, D.C. Dulles Intl
43h 28m
2 stops
GMP10:30 pmSeoul Gimpo Intl
$1,064
Find similar
ANA
Feb 1
GMP7:50 pmSeoul Gimpo Intl
29h 56m
2 stops
IAD11:46 amWashington, D.C. Dulles Intl
Feb 23
IAD8:20 amWashington, D.C. Dulles Intl
37h 00m
2 stops
GMP11:20 amSeoul Gimpo Intl
$1,070
Find similar

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

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Japan Airlines
Jan 27
GMP8:00 amSeoul Gimpo Intl
46h 26m
2 stops
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 26
IAD7:00 amWashington, D.C. Dulles Intl
37h 55m
2 stops
GMP10:55 amSeoul Gimpo Intl
$1,329
Find similar
Japan Airlines
Jan 27
GMP12:05 pmSeoul Gimpo Intl
42h 21m
2 stops
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 25
IAD7:00 amWashington, D.C. Dulles Intl
25h 05m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,373
Find similar
Japan Airlines
Jan 31
GMP8:00 amSeoul Gimpo Intl
46h 26m
2 stops
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 26
IAD7:00 amWashington, D.C. Dulles Intl
25h 05m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,382
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 November 3, 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

Wed 2/11

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Mon 3/9

12:15 pm-10:30 pm

1 stop21h 15m

$1,032

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sun 2/1

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Mon 2/23

1:02 pm-10:30 pm

2 stops43h 28m

$1,064

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sun 2/1

7:50 pm-11:46 am

2 stops29h 56m

Washington, D.C. Dulles Intl

Mon 2/23

8:20 am-11:20 am

2 stops37h 00m

$1,070

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 3/6

7:45 am-7:29 am

2 stops37h 44m

Washington, D.C. Dulles Intl

Tue 4/21

3:30 pm-10:20 pm

2 stops41h 50m

$1,080

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 12/24

3:50 pm-8:26 pm

2 stops18h 36m

Washington, D.C. Dulles Intl

Wed 1/21

9:00 am-10:30 pm

2 stops23h 30m

$1,111

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 1/27

8:00 am-4:26 pm

2 stops46h 26m

Washington, D.C. Dulles Intl

Thu 2/26

7:00 am-10:55 am

2 stops37h 55m

$1,329

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 1/27

12:05 pm-4:26 pm

2 stops42h 21m

Washington, D.C. Dulles Intl

Wed 2/25

7:00 am-10:05 pm

2 stops25h 05m

$1,373

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 11/20

8:00 am-4:11 pm

2 stops22h 11m

Washington, D.C. Dulles Intl

Wed 12/3

7:34 am-10:05 pm

2 stops24h 31m

$1,563

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 12/23

8:50 am-6:30 pm

1 stop23h 40m

Washington, D.C. Dulles Intl

Fri 1/2

10:00 pm-1:05 pm

1 stop25h 05m

$1,756

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 12/23

8:50 am-6:30 pm

1 stop23h 40m

Washington, D.C. Dulles Intl

Fri 1/2

10:00 pm-1:05 pm

1 stop25h 05m

$1,774

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. 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 $1,502. 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 $1,521 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.
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 18h 36m.

  • 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

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.

An easier way to manage your Washington, D.C. Dulles Intl 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 12/3
Wed 12/10
By creating a price alert you accept our terms of use and privacy policy.

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