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Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $691

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 7/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
American Airlines Logo
7:59 am - 3:45 pm
DCA
-
ICN
18h 46m
1 stop
American Airlines Logo
5:50 pm - 8:59 am
ICN
-
DCA
28h 09m
1 stop
$1,296American Airlines
Wed, Jul 22 - Sun, Aug 30
Philippine Airlines Logo
5:35 pm - 6:00 am
DCA
-
ICN
47h 25m
2 stops
Philippine Airlines Logo
8:30 pm - 8:59 pm
ICN
-
DCA
37h 29m
2 stops
$1,298Philippine Airlines
Tue, Sep 29 - Tue, Oct 20
Multiple Airlines Logo
6:59 am - 6:45 pm
DCA
-
ICN
22h 46m
2 stops
Multiple Airlines Logo
8:45 pm - 12:00 pm
ICN
-
DCA
28h 15m
3 stops
$1,299Multiple Airlines
Mon, Sep 7 - Sat, Sep 19
Alaska Airlines Logo
6:59 pm - 5:30 pm
DCA
-
ICN
57h 31m
2 stops
Alaska Airlines Logo
7:35 pm - 5:59 pm
ICN
-
DCA
35h 24m
2 stops
$1,301Alaska Airlines
Mon, Sep 7 - Fri, Sep 18
Multiple Airlines Logo
6:20 am - 10:25 pm
DCA
-
ICN
27h 05m
2 stops
Multiple Airlines Logo
10:00 am - 6:44 pm
ICN
-
DCA
46h 44m
2 stops
$1,304Multiple Airlines
Tue, Sep 8 - Tue, Jan 19
Philippine Airlines Logo
5:35 pm - 7:15 pm
DCA
-
ICN
60h 40m
2 stops
Philippine Airlines Logo
8:30 pm - 8:49 pm
ICN
-
DCA
37h 19m
2 stops
$1,306Philippine Airlines
Sat, Aug 29 - Wed, Sep 30
Alaska Airlines Logo
6:59 pm - 5:30 pm
DCA
-
ICN
33h 31m
2 stops
Alaska Airlines Logo
7:35 pm - 5:59 pm
ICN
-
DCA
35h 24m
2 stops
$1,308Alaska Airlines
Sun, Sep 6 - Thu, Sep 24
China Eastern Logo
11:00 am - 11:00 am
DCA
-
GMP
34h 00m
2 stops
China Eastern Logo
12:00 pm - 6:05 pm
GMP
-
DCA
44h 05m
2 stops
$1,413China Eastern
Wed, Nov 4 - Mon, Nov 16
Japan Airlines Logo
6:30 am - 5:55 pm
DCA
-
GMP
22h 25m
2 stops
Japan Airlines Logo
8:00 am - 4:29 pm
GMP
-
DCA
21h 29m
2 stops
$1,439Japan Airlines
Sun, Aug 2 - Wed, Aug 26
Japan Airlines Logo
6:23 pm - 5:55 pm
DCA
-
GMP
34h 32m
2 stops
Japan Airlines Logo
8:00 am - 11:33 pm
GMP
-
DCA
28h 33m
2 stops
$1,451Japan Airlines
Thu, Sep 3 - Tue, Sep 8

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American Airlines flights from Washington, D.C. Reagan-National Airport to Seoul

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Seoul flight tickets
American Airlines
Jul 22
DCA7:59 amWashington, D.C. Reagan-National
18h 46m
1 stop
ICN3:45 pmIncheon Intl
Aug 30
ICN5:50 pmIncheon Intl
28h 09m
1 stop
DCA8:59 amWashington, D.C. Reagan-National
$1,296
American Airlines
Aug 28
DCA5:00 amWashington, D.C. Reagan-National
21h 45m
2 stops
ICN3:45 pmIncheon Intl
Sep 6
ICN5:50 pmIncheon Intl
28h 15m
2 stops
DCA9:05 amWashington, D.C. Reagan-National
$1,321
American Airlines
Aug 24
DCA6:59 amWashington, D.C. Reagan-National
19h 46m
1 stop
ICN3:45 pmIncheon Intl
Dec 19
ICN6:35 pmIncheon Intl
18h 24m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
$1,329

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
Sep 1
DCA9:40 amWashington, D.C. Reagan-National
17h 45m
1 stop
ICN4:25 pmIncheon Intl
Sep 29
ICN5:45 pmIncheon Intl
29h 35m
2 stops
DCA10:20 amWashington, D.C. Reagan-National
$1,323
Air Canada
Nov 9
DCA8:40 pmWashington, D.C. Reagan-National
31h 45m
1 stop
ICN6:25 pmIncheon Intl
Nov 19
ICN6:55 pmIncheon Intl
31h 24m
2 stops
DCA12:19 pmWashington, D.C. Reagan-National
$1,325
Air Canada
Sep 3
DCA6:00 amWashington, D.C. Reagan-National
21h 25m
1 stop
ICN4:25 pmIncheon Intl
Nov 17
ICN6:55 pmIncheon Intl
28h 02m
2 stops
DCA8:57 amWashington, D.C. Reagan-National
$1,328

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 June 13, 2026.
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

Cheapest round-trip

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 7/22

7:59 am-3:45 pm

1 stop18h 46m

Incheon Intl

Sun 8/30

5:50 pm-8:59 am

1 stop28h 09m

$1,296

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/29

5:35 pm-6:00 am

2 stops47h 25m

Incheon Intl

Tue 10/20

8:30 pm-8:59 pm

2 stops37h 29m

$1,298

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/7

6:59 am-6:45 pm

2 stops22h 46m

Incheon Intl

Sat 9/19

8:45 pm-12:00 pm

3 stops28h 15m

$1,299

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/7

6:59 pm-5:30 pm

2 stops57h 31m

Incheon Intl

Fri 9/18

7:35 pm-5:59 pm

2 stops35h 24m

$1,301

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/8

6:20 am-10:25 pm

2 stops27h 05m

Incheon Intl

Tue 1/19

10:00 am-6:44 pm

2 stops46h 44m

$1,304

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 8/29

5:35 pm-7:15 pm

2 stops60h 40m

Incheon Intl

Wed 9/30

8:30 pm-8:49 pm

2 stops37h 19m

$1,306

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 9/6

6:59 pm-5:30 pm

2 stops33h 31m

Incheon Intl

Thu 9/24

7:35 pm-5:59 pm

2 stops35h 24m

$1,308

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 11/4

11:00 am-11:00 am

2 stops34h 00m

Seoul Gimpo Intl

Mon 11/16

12:00 pm-6:05 pm

2 stops44h 05m

$1,413
Quickest round-trip

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sun 8/2

6:30 am-5:55 pm

2 stops22h 25m

Seoul Gimpo Intl

Wed 8/26

8:00 am-4:29 pm

2 stops21h 29m

$1,439

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 9/3

6:23 pm-5:55 pm

2 stops34h 32m

Seoul Gimpo Intl

Tue 9/8

8:00 am-11:33 pm

2 stops28h 33m

$1,451

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 cheapest month to fly to Seoul?

The month of August is another great option to travel to Seoul, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $326.

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

According to our data, Tuesday is the cheapest day to fly to Seoul from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Tuesday departure recently was $1,246. 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 $1,474.

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

Flying to Seoul from Washington, D.C. Reagan-National Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,297 when looking at flights departing at noon. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,362 per ticket.

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

You could potentially save up to 8% 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

Fastest flight time

20h 40m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Seoul takes 20h 40m
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.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Seoul

  • 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 40m.

  • 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 $1,137Free CancellationRating
7.1
11,172 reviews
Search Air Canada 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