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Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $662

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Seoul departing on 3/1. 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 Washington, D.C. Reagan-National Airport to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 am - 10:25 pm
DCA
-
GMP
22h 25m
2 stops
Multiple Airlines Logo
8:10 am - 10:31 pm
GMP
-
DCA
27h 21m
2 stops
$1,126Multiple Airlines
Tue, Aug 25 - Wed, Sep 2
Japan Airlines Logo
5:55 am - 9:15 pm
DCA
-
GMP
26h 20m
2 stops
Japan Airlines Logo
12:05 pm - 4:45 pm
GMP
-
DCA
41h 40m
2 stops
$1,320Japan Airlines
Thu, Apr 9 - Tue, Apr 21
Japan Airlines Logo
6:58 am - 9:15 pm
DCA
-
GMP
25h 17m
2 stops
Japan Airlines Logo
8:00 am - 6:58 pm
GMP
-
DCA
23h 58m
2 stops
$1,321Japan Airlines
Wed, Apr 8 - Thu, Apr 16
Japan Airlines Logo
9:32 am - 9:15 pm
DCA
-
GMP
22h 43m
2 stops
Japan Airlines Logo
8:00 am - 6:58 pm
GMP
-
DCA
23h 58m
2 stops
$1,328Japan Airlines
Tue, Apr 7 - Wed, Apr 22
Japan Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
Japan Airlines Logo
8:00 am - 4:45 pm
GMP
-
DCA
21h 45m
2 stops
$1,371Japan Airlines
Sat, Apr 11 - Thu, Apr 23
Japan Airlines Logo
6:00 am - 9:15 pm
DCA
-
GMP
26h 15m
2 stops
Japan Airlines Logo
8:00 am - 4:45 pm
GMP
-
DCA
21h 45m
2 stops
$1,376Japan Airlines
Sat, Apr 11 - Thu, Apr 23
Multiple Airlines Logo
11:36 am - 9:15 pm
DCA
-
GMP
20h 39m
2 stops
Multiple Airlines Logo
8:00 am - 10:59 pm
GMP
-
DCA
27h 59m
2 stops
$1,383Multiple Airlines
Tue, Apr 7 - Mon, Apr 20
Multiple Airlines Logo
6:00 am - 10:40 am
DCA
-
GMP
39h 40m
2 stops
Multiple Airlines Logo
7:15 pm - 10:59 pm
GMP
-
DCA
40h 44m
2 stops
$1,409Multiple Airlines
Sun, Apr 12 - Sun, Apr 19
Japan Airlines Logo
11:36 am - 9:15 pm
DCA
-
GMP
20h 39m
2 stops
Japan Airlines Logo
8:00 am - 6:58 pm
GMP
-
DCA
23h 58m
2 stops
$1,420Japan Airlines
Tue, Apr 7 - Mon, Apr 20
Japan Airlines Logo
7:00 am - 9:15 pm
DCA
-
GMP
25h 15m
2 stops
Japan Airlines Logo
8:00 am - 6:58 pm
GMP
-
DCA
23h 58m
2 stops
$1,424Japan Airlines
Sun, Apr 19 - Fri, Apr 24

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

Our best Japan Airlines deals on Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Apr 9
DCA5:55 amWashington, D.C. Reagan-National
26h 20m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Apr 21
GMP12:05 pmSeoul Gimpo Intl
41h 40m
2 stops
DCA4:45 pmWashington, D.C. Reagan-National
$1,320
Japan Airlines
Apr 8
DCA6:58 amWashington, D.C. Reagan-National
25h 17m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Apr 16
GMP8:00 amSeoul Gimpo Intl
23h 58m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
$1,321
Japan Airlines
Apr 7
DCA9:32 amWashington, D.C. Reagan-National
22h 43m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Apr 22
GMP8:00 amSeoul Gimpo Intl
23h 58m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
$1,328

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

Our best ANA deals on Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport flight tickets
ANA
Apr 7
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
Jul 7
GMP7:55 pmSeoul Gimpo Intl
31h 27m
2 stops
DCA2:22 pmWashington, D.C. Reagan-National
$1,663
ANA
Apr 7
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
Jul 7
GMP7:55 pmSeoul Gimpo Intl
31h 27m
2 stops
DCA2:22 pmWashington, D.C. Reagan-National
$1,753
ANA
Mar 31
DCA3:30 pmWashington, D.C. Reagan-National
30h 35m
2 stops
GMP11:05 amSeoul Gimpo Intl
Apr 8
GMP7:55 pmSeoul Gimpo Intl
32h 43m
2 stops
DCA3:38 pmWashington, D.C. Reagan-National
$1,834

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Seoul Gimpo 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 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 8/25

11:00 am-10:25 pm

2 stops22h 25m

Seoul Gimpo Intl

Wed 9/2

8:10 am-10:31 pm

2 stops27h 21m

$1,126

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 4/9

5:55 am-9:15 pm

2 stops26h 20m

Seoul Gimpo Intl

Tue 4/21

12:05 pm-4:45 pm

2 stops41h 40m

$1,320

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 4/8

6:58 am-9:15 pm

2 stops25h 17m

Seoul Gimpo Intl

Thu 4/16

8:00 am-6:58 pm

2 stops23h 58m

$1,321

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 4/7

9:32 am-9:15 pm

2 stops22h 43m

Seoul Gimpo Intl

Wed 4/22

8:00 am-6:58 pm

2 stops23h 58m

$1,328

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sat 4/11

6:00 am-9:15 pm

2 stops26h 15m

Seoul Gimpo Intl

Thu 4/23

8:00 am-4:45 pm

2 stops21h 45m

$1,371

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sat 4/11

6:00 am-9:15 pm

2 stops26h 15m

Seoul Gimpo Intl

Thu 4/23

8:00 am-4:45 pm

2 stops21h 45m

$1,376

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 4/7

11:36 am-9:15 pm

2 stops20h 39m

Seoul Gimpo Intl

Mon 4/20

8:00 am-10:59 pm

2 stops27h 59m

$1,383

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sun 4/12

6:00 am-10:40 am

2 stops39h 40m

Seoul Gimpo Intl

Sun 4/19

7:15 pm-10:59 pm

2 stops40h 44m

$1,409

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 4/7

11:36 am-9:15 pm

2 stops20h 39m

Seoul Gimpo Intl

Mon 4/20

8:00 am-6:58 pm

2 stops23h 58m

$1,420

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sun 4/19

7:00 am-9:15 pm

2 stops25h 15m

Seoul Gimpo Intl

Fri 4/24

8:00 am-6:58 pm

2 stops23h 58m

$1,424

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 Seoul from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Seoul Gimpo 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 airline that flies from Washington, D.C. Reagan-National to Seoul Gimpo Intl?

EVA Air is the most popular carrier operating from Washington, D.C. Reagan-National to Seoul Gimpo Intl

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport (DCA to GMP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport

Fastest flight time

19h 44m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport takes 19h 44m
There are no direct flights from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport.
Search flight deals

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

    The straight-line distance from Washington, D.C. Reagan-National to Seoul Gimpo Intl is 6938.8 mi. 19h 44m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport are updated daily.

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

    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 Washington, D.C. Reagan-National Airport to Seoul Gimpo Intl Airport.

  • What documentation or ID do you need to fly to Seoul Gimpo Intl Airport?

    The required travel and health documents for your Seoul Gimpo Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seoul Gimpo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Seoul for you.

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

Flights from Washington, D.C. to Seoul 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 Washington, D.C. to Seoul?

momondo helps you find the best flight between Washington, D.C. and Seoul 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 Washington, D.C. to Seoul right now. Can momondo alert me if prices change?

Price alerts on flights to Seoul from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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