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$456+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ICN
May 15 — May 221
Fri 5/15
Fri 5/22
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 April 15, 2026.

This Air Canada deal was found by Cheapflights users on 4/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:20 pm
DCA
-
ICN
1 stop35h 05m
Air Canada
Wed 10/146:00 pm
ICN
-
DCA
1 stop16h 50m
Air Canada
Deal found 4/11$1,245
This Air Canada deal was found by Cheapflights users on 4/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am
DCA
-
ICN
1 stop21h 25m
Air Canada
Tue 10/205:45 pm
ICN
-
DCA
2 stops28h 10m
Air Canada
Deal found 4/10$1,250
This Air Canada deal was found by Cheapflights users on 4/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:20 pm
DCA
-
ICN
1 stop35h 05m
Air Canada
Mon 11/28:10 pm
ICN
-
DCA
1 stop35h 57m
Air Canada
Deal found 4/10$1,252
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am
DCA
-
ICN
2 stops22h 30m
Air Canada
Wed 11/116:55 pm
ICN
-
DCA
2 stops29h 26m
Air Canada
Deal found 4/12$1,254
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:50 pm
DCA
-
ICN
1 stop33h 35m
Air Canada
Tue 11/248:10 pm
ICN
-
DCA
1 stop16h 27m
Air Canada
Deal found 4/14$1,255
This FlightHub deal was found by Cheapflights users on 4/13. 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.
Wed 9/164:20 pm
DCA
-
ICN
1 stop35h 05m
Air Canada
Thu 10/17:05 pm
ICN
-
DCA
1 stop16h 29m
Air Canada
Deal found 4/13$1,260
This FlightHub deal was found by Cheapflights users on 4/13. 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.
Tue 9/298:40 pm
DCA
-
ICN
1 stop31h 50m
Air Canada
Thu 10/87:05 pm
ICN
-
DCA
1 stop16h 29m
Air Canada
Deal found 4/13$1,265
This FlightHub deal was found by Cheapflights users on 4/10. 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 9/74:20 pm
DCA
-
ICN
1 stop35h 05m
Multiple Airlines
Thu 9/178:25 am
ICN
-
DCA
2 stops26h 25m
Multiple Airlines
Deal found 4/10$1,268
This Ovago deal was found by Cheapflights users on 4/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:40 am
DCA
-
ICN
1 stop17h 45m
Asiana Airlines
Thu 10/17:05 pm
ICN
-
DCA
1 stop16h 29m
Asiana Airlines
Deal found 4/13$1,279
This oojo deal was found by Cheapflights users on 4/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:34 am
DCA
-
GMP
2 stops20h 41m
Japan Airlines
Thu 11/2612:05 pm
GMP
-
DCA
2 stops23h 24m
Japan Airlines
Deal found 4/14$1,403
This oojo deal was found by Cheapflights users on 4/11. 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.
Tue 10/66:59 am
DCA
-
GMP
2 stops25h 16m
Japan Airlines
Tue 11/1712:05 pm
GMP
-
DCA
2 stops22h 39m
Japan Airlines
Deal found 4/11$1,420
This oojo deal was found by Cheapflights users on 4/11. 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.
Thu 8/2712:31 pm
DCA
-
GMP
2 stops19h 44m
Japan Airlines
Wed 9/98:00 am
GMP
-
DCA
2 stops28h 02m
Japan Airlines
Deal found 4/11$1,421

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 April 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,331
(Mytrip)

One-way from

$456
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,456
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. 5% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 15, 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.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 8/27

12:31 pm-9:15 pm

2 stops19h 44m

Seoul Gimpo Intl

Wed 9/9

12:05 pm-11:02 pm

2 stops23h 57m

$1,422

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 8/17

7:34 am-9:15 pm

2 stops24h 41m

Seoul Gimpo Intl

Thu 8/27

8:00 am-4:29 pm

2 stops45h 29m

$1,433

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 9/10

7:22 pm-5:55 pm

2 stops33h 33m

Seoul Gimpo Intl

Mon 9/14

8:00 am-11:02 pm

2 stops28h 02m

$1,482

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Sat 8/29

7:17 pm-10:40 am

2 stops26h 23m

Seoul Gimpo Intl

Mon 9/7

8:00 am-7:49 am

2 stops36h 49m

$1,483

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 8/26

7:17 pm-9:15 pm

2 stops36h 58m

Seoul Gimpo Intl

Thu 9/10

8:00 am-7:58 am

2 stops36h 58m

$1,488

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 4/30

5:31 pm-9:15 pm

2 stops38h 44m

Seoul Gimpo Intl

Tue 5/12

7:15 pm-6:58 pm

2 stops36h 43m

$1,498

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Fri 5/1

5:31 pm-9:15 pm

2 stops38h 44m

Seoul Gimpo Intl

Tue 5/12

7:15 pm-6:58 pm

2 stops36h 43m

$1,498

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Fri 5/1

9:32 am-9:15 pm

2 stops22h 43m

Seoul Gimpo Intl

Fri 5/8

8:00 am-3:45 pm

2 stops20h 45m

$1,517

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 4/28

8:30 am-9:15 pm

2 stops23h 45m

Seoul Gimpo Intl

Tue 5/12

8:00 am-4:45 pm

2 stops21h 45m

$1,553

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Sun 8/16

9:59 am-9:30 am

2 stops34h 31m

Busan Gimhae

Mon 8/24

8:00 pm-5:59 pm

2 stops34h 59m

$1,670

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 56 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 $460). Flying from Washington, D.C. Reagan-National Airport to South Korea in May is currently the most expensive (average of $1,799). 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 April 15, 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
10,926 reviews

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Overall

7.1

Crew

7.8

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
10,926 reviews
Air Canada
7.1
Good
10,926 reviews

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Overall

7.1

Crew

7.8

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 $1,422, Japan Airlines can have you in South Korea from Washington, D.C. Reagan-National Airport in 19h 44m. 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 $460). Flying from Washington, D.C. Reagan-National Airport to South Korea in May is currently the most expensive (average of $1,799). 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 April 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,137Average$1,243FlexibilityNo cancel feeOn-time67%

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