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Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $468

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 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 Washington, D.C. Reagan-National Airport to Seoul (DCA-SEL)

Cheap round-trip flights

Air Canada Logo
4:10 pm - 5:10 pmDCA-ICN
35h 00m2 stops
Air Canada Logo
6:55 pm - 3:31 pmICN-DCA
34h 36m2 stops
$984Air Canada
Find Deal
Tue, Jan 6 - Mon, Jan 12
Air Canada Logo
9:20 pm - 5:10 pmDCA-ICN
29h 50m2 stops
Air Canada Logo
6:55 pm - 8:55 amICN-DCA
28h 00m2 stops
$986Air Canada
Find Deal
Tue, Jan 6 - Mon, Jan 12
Air Canada Logo
9:20 pm - 5:10 pmDCA-ICN
29h 50m2 stops
Air Canada Logo
6:55 pm - 10:26 amICN-DCA
29h 31m2 stops
$1,017Air Canada
Find Deal
Tue, Dec 9 - Fri, Dec 26
Logo
6:00 pm - 3:45 pmDCA-ICN
32h 45m2 stops
Logo
1:20 pm - 8:00 pmICN-DCA
19h 40m1 stop
$1,039
Find Deal
Fri, Oct 24 - Fri, Oct 31
Logo
7:00 am - 8:30 pmDCA-ICN
24h 30m2 stops
Logo
1:20 pm - 8:00 pmICN-DCA
19h 40m1 stop
$1,043
Find Deal
Mon, Oct 20 - Fri, Oct 31
Cathay Pacific Logo
5:30 pm - 12:40 pmDCA-ICN
30h 10m2 stops
Cathay Pacific Logo
10:10 am - 12:58 amICN-DCA
27h 48m2 stops
$1,044Cathay Pacific
Find Deal
Mon, Sep 15 - Mon, Sep 22
Cathay Pacific Logo
5:00 pm - 6:35 pmDCA-ICN
35h 35m2 stops
Cathay Pacific Logo
1:50 pm - 6:54 pmICN-DCA
43h 04m2 stops
$1,046Cathay Pacific
Find Deal
Wed, Nov 19 - Mon, Dec 1
China Eastern Logo
11:10 am - 1:30 pmDCA-ICN
37h 20m2 stops
China Eastern Logo
8:55 am - 6:00 pmICN-DCA
22h 05m2 stops
$1,050China Eastern
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Wed, Oct 22 - Tue, Oct 28
ANA Logo
3:30 pm - 11:05 amDCA-GMP
30h 35m2 stops
ANA Logo
7:50 pm - 11:58 amGMP-DCA
30h 08m2 stops
$1,621ANA
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Mon, Oct 20 - Tue, Nov 4
ANA Logo
8:30 am - 10:20 pmDCA-GMP
24h 50m2 stops
ANA Logo
7:45 am - 6:52 pmGMP-DCA
25h 07m2 stops
$1,810ANA
Find Deal
Sun, Sep 21 - Sun, Feb 8

Cathay Pacific flights from Washington, D.C. Reagan-National Airport to Seoul

Our best Cathay Pacific deals on Washington, D.C. Reagan-National Airport to Seoul flight tickets
Cathay Pacific
Sep 15
DCA5:30 pmWashington, D.C. Reagan-National
30h 10m
2 stops
ICN12:40 pmIncheon Intl
Sep 22
ICN10:10 amIncheon Intl
27h 48m
2 stops
DCA12:58 amWashington, D.C. Reagan-National
$1,044
Find similar
Cathay Pacific
Nov 19
DCA5:00 pmWashington, D.C. Reagan-National
35h 35m
2 stops
ICN6:35 pmIncheon Intl
Dec 1
ICN1:50 pmIncheon Intl
43h 04m
2 stops
DCA6:54 pmWashington, D.C. Reagan-National
$1,046
Find similar
Cathay Pacific
Nov 16
DCA5:00 pmWashington, D.C. Reagan-National
53h 45m
2 stops
ICN12:45 pmIncheon Intl
Dec 8
ICN1:50 pmIncheon Intl
47h 17m
2 stops
DCA11:07 pmWashington, D.C. Reagan-National
$1,056
Find similar

Air Canada flights from Washington, D.C. Reagan-National Airport to Seoul

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Seoul flight tickets
Air Canada
Jan 6
DCA4:10 pmWashington, D.C. Reagan-National
35h 00m
2 stops
ICN5:10 pmIncheon Intl
Jan 12
ICN6:55 pmIncheon Intl
34h 36m
2 stops
DCA3:31 pmWashington, D.C. Reagan-National
$984
Find similar
Air Canada
Jan 6
DCA9:20 pmWashington, D.C. Reagan-National
29h 50m
2 stops
ICN5:10 pmIncheon Intl
Jan 12
ICN6:55 pmIncheon Intl
28h 00m
2 stops
DCA8:55 amWashington, D.C. Reagan-National
$986
Find similar
Air Canada
Dec 9
DCA9:20 pmWashington, D.C. Reagan-National
29h 50m
2 stops
ICN5:10 pmIncheon Intl
Dec 26
ICN6:55 pmIncheon Intl
29h 31m
2 stops
DCA10:26 amWashington, D.C. Reagan-National
$1,017
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Seoul 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 August 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 1/6

4:10 pm-5:10 pm

2 stops35h 00m

Incheon Intl

Mon 1/12

6:55 pm-3:31 pm

2 stops34h 36m

$984

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 1/6

9:20 pm-5:10 pm

2 stops29h 50m

Incheon Intl

Mon 1/12

6:55 pm-8:55 am

2 stops28h 00m

$986

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 12/9

9:20 pm-5:10 pm

2 stops29h 50m

Incheon Intl

Fri 12/26

6:55 pm-10:26 am

2 stops29h 31m

$1,017

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 10/24

6:00 pm-3:45 pm

2 stops32h 45m

Incheon Intl

Fri 10/31

1:20 pm-8:00 pm

1 stop19h 40m

$1,039

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/20

7:00 am-8:30 pm

2 stops24h 30m

Incheon Intl

Fri 10/31

1:20 pm-8:00 pm

1 stop19h 40m

$1,043

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/15

5:30 pm-12:40 pm

2 stops30h 10m

Incheon Intl

Mon 9/22

10:10 am-12:58 am

2 stops27h 48m

$1,044

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 11/19

5:00 pm-6:35 pm

2 stops35h 35m

Incheon Intl

Mon 12/1

1:50 pm-6:54 pm

2 stops43h 04m

$1,046

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/22

11:10 am-1:30 pm

2 stops37h 20m

Incheon Intl

Tue 10/28

8:55 am-6:00 pm

2 stops22h 05m

$1,050

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 10/20

3:30 pm-11:05 am

2 stops30h 35m

Seoul Gimpo Intl

Tue 11/4

7:50 pm-11:58 am

2 stops30h 08m

$1,621

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sun 9/21

8:30 am-10:20 pm

2 stops24h 50m

Seoul Gimpo Intl

Sun 2/8

7:45 am-6:52 pm

2 stops25h 07m

$1,810

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

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 typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Seoul?

What is the cheapest month to fly to Seoul?

The month of October is another great option to travel to Seoul, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $1,115.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Wednesday is the cheapest day to fly to Seoul from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Wednesday departure recently was $1,471. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,634.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Washington, D.C. Reagan-National Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,179 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,689 per ticket.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Seoul flights?

You could potentially save up to 21% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Seoul flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Seoul 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 (DCA to SEL) 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

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Seoul. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Seoul.
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  • How far is Washington, D.C. Reagan-National to Seoul by plane?

    Seoul is 6936.4 mi away from Washington, D.C. Reagan-National. By plane, this route typically takes 20h 35m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Seoul were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Seoul?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Seoul.

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

    The travel and health documents required for your trip to Seoul 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 Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Seoul?

Best airlines flying from Washington, D.C. Reagan-National Airport to Seoul

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $864Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $877Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Korean AirPriceFrom $1,527Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Seoul. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Seoul from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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?

Of course. momondo tracks the price of Washington, D.C. to Seoul 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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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport