What is the cheapest airline that flies from Seoul Gimpo Intl to Washington, D.C.?

Air China and Japan Airlines are the most popular carriers operating from Seoul Gimpo Intl to Washington, D.C.

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.

$664 Cheap Flights from Seoul Gimpo Intl Airport to Washington, D.C. in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

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.

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 9:10 am

GMP

IAD

34h 45m1 stop

11:10 am - 10:30 pm

IAD

GMP

21h 20m1 stop

$1,021ANA

Thu, Feb 5 - Fri, Feb 13

12:25 pm - 9:10 am

GMP

IAD

34h 45m1 stop

8:15 am - 11:20 am

IAD

GMP

37h 05m2 stops

$1,044ANA

Thu, Feb 5 - Fri, Feb 13

7:50 pm - 11:46 am

GMP

IAD

29h 56m2 stops

8:15 am - 11:20 am

IAD

GMP

37h 05m2 stops

$1,050ANA

Thu, Feb 5 - Fri, Feb 13

12:25 pm - 9:10 am

GMP

IAD

34h 45m1 stop

12:15 pm - 10:30 pm

IAD

GMP

21h 15m1 stop

$1,089ANA

Wed, Feb 11 - Mon, Mar 9

7:50 pm - 9:10 am

GMP

IAD

27h 20m1 stop

12:15 pm - 10:30 pm

IAD

GMP

21h 15m1 stop

$1,091ANA

Wed, Feb 11 - Mon, Mar 9

7:50 pm - 9:10 am

GMP

IAD

27h 20m1 stop

11:10 am - 10:30 pm

IAD

GMP

21h 20m1 stop

$1,120ANA

Sun, Jan 25 - Sun, Feb 1

7:50 pm - 9:10 am

GMP

IAD

27h 20m1 stop

11:10 am - 10:30 pm

IAD

GMP

21h 20m1 stop

$1,121ANA

Fri, Jan 23 - Fri, Feb 20

7:55 pm - 10:05 am

GMP

IAD

27h 10m1 stop

12:15 pm - 10:20 pm

IAD

GMP

21h 05m1 stop

$1,145ANA

Tue, Jun 23 - Tue, Jul 21

12:05 pm - 10:33 pm

GMP

DCA

23h 28m2 stops

5:49 pm - 10:45 am

DCA

GMP

27h 56m2 stops

$1,249Japan Airlines

Tue, Apr 7 - Wed, Apr 15

8:00 am - 3:59 pm

GMP

DCA

45h 59m2 stops

5:00 pm - 10:55 am

DCA

GMP

52h 55m2 stops

$1,311Japan Airlines

Fri, Mar 6 - Mon, Mar 9

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

Feb 5

GMP12:25 pmSeoul Gimpo Intl

34h 45m

1 stop

IAD9:10 amWashington, D.C. Dulles Intl

Feb 13

IAD11:10 amWashington, D.C. Dulles Intl

21h 20m

1 stop

GMP10:30 pmSeoul Gimpo Intl

$1,021

Find similar

ANA

Feb 5

GMP12:25 pmSeoul Gimpo Intl

34h 45m

1 stop

IAD9:10 amWashington, D.C. Dulles Intl

Feb 13

IAD8:15 amWashington, D.C. Dulles Intl

37h 05m

2 stops

GMP11:20 amSeoul Gimpo Intl

$1,044

Find similar

ANA

Feb 5

GMP7:50 pmSeoul Gimpo Intl

29h 56m

2 stops

IAD11:46 amWashington, D.C. Dulles Intl

Feb 13

IAD8:15 amWashington, D.C. Dulles Intl

37h 05m

2 stops

GMP11:20 amSeoul Gimpo Intl

$1,050

Find similar

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

Our best Air China deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets

Air China

Jan 6

GMP2:25 pmSeoul Gimpo Intl

18h 05m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

Jan 9

IAD10:00 pmWashington, D.C. Dulles Intl

25h 05m

1 stop

GMP1:05 pmSeoul Gimpo Intl

$1,422

Find similar

Air China

Jan 9

GMP2:25 pmSeoul Gimpo Intl

18h 05m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

May 12

IAD11:00 pmWashington, D.C. Dulles Intl

25h 05m

1 stop

GMP1:05 pmSeoul Gimpo Intl

$1,478

Find similar

momondo Fare Finder

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

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 2/5

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Fri 2/13

11:10 am-10:30 pm

1 stop21h 20m

$1,021

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 2/5

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Fri 2/13

8:15 am-11:20 am

2 stops37h 05m

$1,044

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 2/5

7:50 pm-11:46 am

2 stops29h 56m

Washington, D.C. Dulles Intl

Fri 2/13

8:15 am-11:20 am

2 stops37h 05m

$1,050

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/11

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Mon 3/9

12:15 pm-10:30 pm

1 stop21h 15m

$1,089

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

$1,091

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Sun 1/25

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Sun 2/1

11:10 am-10:30 pm

1 stop21h 20m

$1,120

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Fri 1/23

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Fri 2/20

11:10 am-10:30 pm

1 stop21h 20m

$1,121

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 6/23

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Tue 7/21

12:15 pm-10:20 pm

1 stop21h 05m

$1,145

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 4/7

12:05 pm-10:33 pm

2 stops23h 28m

Washington, D.C. Reagan-National

Wed 4/15

5:49 pm-10:45 am

2 stops27h 56m

$1,249

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Fri 3/6

8:00 am-3:59 pm

2 stops45h 59m

Washington, D.C. Reagan-National

Mon 3/9

5:00 pm-10:55 am

2 stops52h 55m

$1,311

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 Sunday. momondo users have found tickets for Sunday departures for as low as $1,392. 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 $1,648.

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

In the afternoon is the cheapest time of day to fly from Seoul Gimpo Intl Airport to Washington, D.C. when you can find flight prices for as low as $919. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,537. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 8% 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	18h 05m
Direct flights	None

The fastest flight from Seoul Gimpo Intl Airport to Washington, D.C. takes 18h 05m

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

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 18h 05m 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.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Gaithersburg

Reston

Manassas

Fairfax

Glen Burnie

Linthicum Heights

Bethesda

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.

An easier way to manage your Washington, D.C. 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

Mon 1/26

Mon 2/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

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

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Popular cities in the United States

Flights to New Yorkfrom $50

Flights to Los Angelesfrom $47

Flights to Miamifrom $50

Flights to Chicagofrom $51

Flights to Orlandofrom $49

Flights to San Franciscofrom $59

Flights to Las Vegasfrom $49

Flights to Bostonfrom $51

Flights to Atlantafrom $44

Flights to Dallasfrom $51

Flights to Seattlefrom $57

Flights to Denverfrom $53

Cheap flights from Seoul Gimpo Intl Airport to Washington, D.C. from $664

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seoul Gimpo Intl Airport to Washington, D.C.

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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

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

Our best Air China deals on Seoul Gimpo Intl Airport to Washington, D.C. flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to Washington, D.C.

What is the cheapest day to depart on your flight to Washington, D.C.?

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

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

You could potentially save up to 8% on your flight if you consider stops on a Seoul Gimpo Intl Airport to Washington, D.C. flight.

What is the cheapest airline that flies from Seoul Gimpo Intl to Washington, D.C.?

Air China and Japan Airlines are the most popular carriers operating from Seoul Gimpo Intl to Washington, D.C.

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

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

Direct flights

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

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

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

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

Traveling to a place near Washington, D.C.?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Washington, D.C. 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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.