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$624+ Cheap flights from Reagan-National (DCA) to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ICN
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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Cheap flight deals from Reagan-National to South Korea

Cheapest flights from Reagan-National to South Korea
Explore the most affordable flight options available from Reagan-National to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:59 am
DCA
-
ICN
1 stop21h 31m
Air Canada
Fri 10/307:10 pm
ICN
-
DCA
1 stop16h 27m
Air Canada
Deal found 5/14$1,246
This Cathay Pacific deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:59 pm
DCA
-
ICN
2 stops28h 41m
Multiple Airlines
Tue 9/158:00 am
ICN
-
DCA
2 stops25h 15m
Multiple Airlines
Deal found 5/15$1,287
This FlightHub deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:30 am
DCA
-
ICN
2 stops38h 10m
Multiple Airlines
Mon 10/58:05 pm
ICN
-
DCA
2 stops34h 52m
Multiple Airlines
Deal found 5/12$1,293
This Alaska Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:57 pm
DCA
-
ICN
2 stops33h 38m
Alaska Airlines
Mon 11/98:00 pm
ICN
-
DCA
2 stops35h 59m
Alaska Airlines
Deal found 5/11$1,301
This Cathay Pacific deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:57 pm
DCA
-
ICN
2 stops35h 08m
Cathay Pacific
Mon 8/248:00 am
ICN
-
DCA
2 stops28h 58m
Cathay Pacific
Deal found 5/16$1,313
This KAYAK deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:30 am
DCA
-
ICN
2 stops39h 35m
Multiple Airlines
Tue 10/203:10 pm
ICN
-
DCA
2 stops39h 47m
Multiple Airlines
Deal found 5/11$1,328
This FlightHub deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:30 am
DCA
-
ICN
2 stops38h 10m
Multiple Airlines
Fri 10/23:10 pm
ICN
-
DCA
2 stops39h 47m
Multiple Airlines
Deal found 5/12$1,343
This Alaska Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:57 pm
DCA
-
ICN
2 stops33h 38m
Alaska Airlines
Thu 11/128:00 pm
ICN
-
DCA
2 stops35h 59m
Alaska Airlines
Deal found 5/12$1,349
This Cathay Pacific deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:36 am
DCA
-
ICN
2 stops36h 04m
Multiple Airlines
Wed 5/278:00 am
ICN
-
DCA
2 stops25h 59m
Multiple Airlines
Deal found 5/12$1,360
This oojo deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:20 am
DCA
-
ICN
2 stops27h 05m
Cathay Pacific
Wed 9/308:00 am
ICN
-
DCA
2 stops28h 58m
Cathay Pacific
Deal found 5/15$1,365
This FlightHub deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:30 am
DCA
-
ICN
2 stops38h 10m
Multiple Airlines
Mon 10/58:05 pm
ICN
-
DCA
2 stops34h 52m
Multiple Airlines
Deal found 5/14$1,368
This oojo deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:30 am
DCA
-
GMP
2 stops25h 45m
Japan Airlines
Mon 10/512:05 pm
GMP
-
DCA
2 stops23h 52m
Japan Airlines
Deal found 5/11$1,413

Find flight deals from Reagan-National to South Korea

Keep the following information in mind while searching for Reagan-National to South Korea flight deals. Data was last updated May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,246

One-way from

$624
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,504
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
Search Deals
From Washington, D.C. Reagan-National to South Korea
Search Deals
One-way flight from Washington, D.C. Reagan-National to South Korea
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to South Korea 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, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to South Korea 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 8/5

6:59 pm-5:30 pm

2 stops33h 31m

Incheon Intl

Wed 8/19

7:35 pm-9:00 pm

2 stops38h 25m

$1,621

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 7/22

6:59 pm-5:30 pm

2 stops33h 31m

Incheon Intl

Wed 8/19

7:35 pm-9:00 pm

2 stops38h 25m

$1,621

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 6/1

5:22 pm-11:20 am

2 stops28h 58m

Incheon Intl

Sun 6/21

9:50 pm-11:59 pm

2 stops39h 09m

$1,735

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 6/23

11:35 am-10:25 pm

2 stops45h 50m

Incheon Intl

Mon 7/6

1:55 am-8:59 pm

2 stops32h 04m

$1,756

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 8/8

6:59 pm-5:30 pm

2 stops33h 31m

Incheon Intl

Wed 8/26

7:35 pm-4:00 pm

2 stops33h 25m

$1,764

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 5/24

5:22 pm-11:20 am

2 stops28h 58m

Incheon Intl

Wed 6/3

9:50 pm-11:59 pm

2 stops39h 09m

$1,770

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 6/1

5:22 pm-11:20 am

2 stops28h 58m

Incheon Intl

Sun 6/14

9:50 pm-8:00 am

2 stops47h 10m

$1,821
Quickest round-trip

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 7/15

6:30 am-4:30 pm

1 stop21h 00m

Incheon Intl

Wed 7/22

12:40 pm-8:00 pm

1 stop20h 20m

$1,868

Washington, D.C.Daegu

DCA - TAE

DCATAE

Washington, D.C. Reagan-National

Mon 8/10

5:00 pm-7:55 pm

2 stops37h 55m

Daegu

Tue 8/25

7:55 am-8:00 pm

2 stops25h 05m

$1,906

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 7/15

11:35 am-12:40 pm

2 stops36h 05m

Incheon Intl

Wed 7/22

3:10 pm-11:31 pm

2 stops45h 21m

$1,906

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Reagan-National to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to South Korea

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to South Korea?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $247). Flying from Washington, D.C. Reagan-National Airport to South Korea in January is currently the most expensive (average of $1,777). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated May 16, 2026.
Read reviews from past customers who have flown Air Canada from Washington, D.C. Reagan-National Airport to South Korea. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,046 reviews

Crew

7.8

Overall

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good
Air Canada
7.1
Good
11,046 reviews
Air Canada
7.1
Good
11,046 reviews

Crew

7.8

Overall

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to South Korea?

    For as low as $1,942, Alaska Airlines can have you in South Korea from Washington, D.C. Reagan-National Airport in 26h 15m. The distance from Washington, D.C. Reagan-National Airport to South Korea is about 6939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to South Korea?

    Most travelers choose Washington, D.C. Reagan-National - Incheon Intl, Washington, D.C. Reagan-National - Seoul Gimpo Intl or Washington, D.C. Reagan-National - Busan Gimhae when deciding on the best route from Washington, D.C. Reagan-National Airport to South Korea.

  • Can I find deals for flights from Reagan-National to South Korea that include hotel bookings?

    Yes. In addition to deals on Reagan-National to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to South Korea.

  • Can I find deals for business class flights from Reagan-National to South Korea?

    Yes. Cheapflights offers flight deals from Reagan-National to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to South Korea?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $247). Flying from Washington, D.C. Reagan-National Airport to South Korea in January is currently the most expensive (average of $1,777). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Reagan-National to South Korea

Discover the top airline that operate flights from Reagan-National to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,137Average$1,236FlexibilityNo cancel feeOn-time67%

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