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$671+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ICN
Jun 25 — Jul 21
Thu 6/25
Thu 7/2
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 26, 2026.

This Cathay Pacific deal was found by Cheapflights users on 5/21. 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.
Wed 9/238:20 am
DCA
-
ICN
2 stops27h 05m
Multiple Airlines
Wed 10/218:00 am
ICN
-
DCA
2 stops25h 16m
Multiple Airlines
Deal found 5/21$1,223
This Cathay Pacific deal was found by Cheapflights users on 5/23. 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.
Wed 9/168:20 am
DCA
-
ICN
2 stops27h 05m
Multiple Airlines
Sun 10/111:40 pm
ICN
-
DCA
2 stops47h 18m
Multiple Airlines
Deal found 5/23$1,268
This Cathay Pacific deal was found by Cheapflights users on 5/23. 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 9/88:45 am
DCA
-
ICN
2 stops26h 40m
Multiple Airlines
Sat 10/38:00 am
ICN
-
DCA
2 stops25h 15m
Multiple Airlines
Deal found 5/23$1,273
This Mytrip deal was found by Cheapflights users on 5/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:55 pm
DCA
-
ICN
3 stops34h 50m
Multiple Airlines
Tue 8/2511:00 pm
ICN
-
DCA
3 stops35h 48m
Multiple Airlines
Deal found 5/24$1,274
This Mytrip deal was found by Cheapflights users on 5/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:55 pm
DCA
-
ICN
3 stops34h 50m
Multiple Airlines
Thu 9/178:45 pm
ICN
-
DCA
3 stops31h 55m
Multiple Airlines
Deal found 5/25$1,277
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Thu 9/311:34 am
DCA
-
ICN
2 stops36h 06m
Cathay Pacific
Wed 9/301:55 am
ICN
-
DCA
2 stops31h 20m
Cathay Pacific
Deal found 5/23$1,279
This FlightHub deal was found by Cheapflights users on 5/24. 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
Sun 9/208:05 pm
ICN
-
DCA
2 stops34h 54m
Multiple Airlines
Deal found 5/24$1,283
This Alaska Airlines deal was found by Cheapflights users on 5/24. 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 10/206:57 pm
DCA
-
ICN
2 stops33h 33m
Alaska Airlines
Mon 11/28:00 pm
ICN
-
DCA
2 stops35h 59m
Alaska Airlines
Deal found 5/24$1,284
This Mytrip deal was found by Cheapflights users on 5/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:59 am
DCA
-
ICN
2 stops22h 46m
Multiple Airlines
Tue 9/228:45 pm
ICN
-
DCA
3 stops28h 15m
Multiple Airlines
Deal found 5/25$1,293
This Cathay Pacific deal was found by Cheapflights users on 5/24. 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 9/2811:31 am
DCA
-
ICN
2 stops42h 34m
Cathay Pacific
Wed 3/33:00 pm
ICN
-
DCA
2 stops46h 00m
Cathay Pacific
Deal found 5/24$1,304
This oojo deal was found by Cheapflights users on 5/25. 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.
Wed 9/26:00 am
DCA
-
GMP
2 stops26h 15m
Japan Airlines
Wed 9/3012:05 pm
GMP
-
DCA
2 stops24h 05m
Japan Airlines
Deal found 5/25$1,497
This oojo deal was found by Cheapflights users on 5/25. 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 11/126:10 am
DCA
-
GMP
2 stops25h 55m
Japan Airlines
Sat 11/2112:05 pm
GMP
-
DCA
2 stops23h 24m
Japan Airlines
Deal found 5/25$1,508

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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,208
(Justfly.com)

One-way from

$671
(Cathay Pacific)

Popular in

December

Cheapest in

February

Average price

$1,505
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 ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($64 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 26, 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

Tue 9/29

12:30 pm-12:40 pm

2 stops35h 10m

Incheon Intl

Tue 10/20

1:40 pm-8:16 pm

2 stops43h 36m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/2

11:35 am-10:25 pm

2 stops45h 50m

Incheon Intl

Mon 9/14

8:00 am-11:59 pm

2 stops28h 59m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/2

11:35 am-10:25 pm

2 stops45h 50m

Incheon Intl

Sun 9/13

8:05 pm-11:59 pm

2 stops40h 54m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 8/17

11:35 am-7:05 pm

2 stops42h 30m

Incheon Intl

Sun 8/23

1:55 am-11:58 pm

2 stops35h 03m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 8/29

6:57 pm-12:40 pm

2 stops28h 43m

Incheon Intl

Wed 9/30

3:10 pm-8:15 pm

2 stops42h 05m

$1,363

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/30

12:30 pm-12:40 pm

2 stops35h 10m

Incheon Intl

Sat 10/10

8:00 am-8:16 pm

2 stops25h 16m

$1,363

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/27

12:31 pm-9:25 pm

2 stops43h 54m

Incheon Intl

Tue 11/3

10:00 am-11:00 pm

2 stops27h 00m

$1,398

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 9/12

7:00 pm-12:25 am

2 stops40h 25m

Incheon Intl

Sat 9/19

8:00 am-11:59 pm

2 stops28h 59m

$1,413

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/13

6:57 pm-11:00 am

2 stops27h 03m

Incheon Intl

Tue 10/20

7:45 pm-4:25 pm

2 stops33h 40m

$1,428

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 10/17

6:59 pm-12:40 pm

2 stops28h 41m

Incheon Intl

Thu 10/22

8:00 am-8:16 pm

2 stops25h 16m

$1,448

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 54 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 26, 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
11,090 reviews

Boarding

7.3

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

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
11,090 reviews
Air Canada
7.1
Good
11,090 reviews

Boarding

7.3

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

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 $1,518, Cathay Pacific can have you in South Korea from Washington, D.C. Reagan-National Airport in 27h 17m. 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 cheapest airlines to fly from Washington, D.C. Reagan-National Airport to South Korea one-way?

    One-way options have recently been found by users for as low as $108 on Delta. Other airlines that offer cheap prices include United Airlines from $118 and American Airlines from $123 one-way.

  • 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 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,137Average$1,223FlexibilityNo cancel feeOn-time67%

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