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$421+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ICN
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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Cheap 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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,011
(Kiwi.com)

One-way from

$421
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,268
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
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From Washington, D.C. Reagan-National to South Korea
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One-way flight from Washington, D.C. Reagan-National to South Korea
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Highest demand for flights based on searches. 16% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:59 amDCA - ICN
1 stop29h 11mMultiple Airlines
Mon 12/156:55 pmICN - DCA
1 stop37h 04mMultiple Airlines
Deal found 11/3$1,011
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:59 pmDCA - ICN
2 stops36h 36mMultiple Airlines
Wed 12/106:55 pmICN - DCA
1 stop37h 04mMultiple Airlines
Deal found 11/3$1,015
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:00 pmDCA - ICN
2 stops36h 20mMultiple Airlines
Thu 12/111:20 pmICN - DCA
1 stop20h 40mMultiple Airlines
Deal found 11/4$1,017
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:59 pmDCA - ICN
1 stop35h 31mMultiple Airlines
Mon 12/156:55 pmICN - DCA
1 stop37h 04mMultiple Airlines
Deal found 11/4$1,019
This Mytrip deal was found by Cheapflights users on 11/4. 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 12/212:55 pmDCA - ICN
3 stops34h 40mMultiple Airlines
Tue 12/99:20 pmICN - DCA
2 stops28h 59mMultiple Airlines
Deal found 11/4$1,025
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Wed 12/38:40 pmDCA - ICN
2 stops34h 55mMultiple Airlines
Sun 12/149:20 pmICN - DCA
2 stops28h 59mMultiple Airlines
Deal found 11/3$1,045
This Mytrip deal was found by Cheapflights users on 11/2. 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 11/256:59 amDCA - ICN
2 stops24h 36mMultiple Airlines
Thu 12/49:20 pmICN - DCA
2 stops27h 01mMultiple Airlines
Deal found 11/2$1,048
This Trip.com deal was found by Cheapflights users on 11/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:00 pmDCA - PUS
2 stops37h 05mMultiple Airlines
Tue 12/28:50 pmPUS - DCA
2 stops37h 10mMultiple Airlines
Deal found 11/5$1,246
This oojo deal was found by Cheapflights users on 11/5. 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 11/64:55 pmDCA - PUS
2 stops27h 55mChina Airlines
Sun 11/910:10 amPUS - DCA
2 stops42h 26mChina Airlines
Deal found 11/5$1,380
This Priceline deal was found by Cheapflights users on 11/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:54 pmDCA - GMP
2 stops27h 01mJapan Airlines
Mon 12/158:00 amGMP - DCA
2 stops22h 25mJapan Airlines
Deal found 11/4$1,699
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:10 amDCA - GMP
2 stops25h 55mJapan Airlines
Mon 12/812:05 pmGMP - DCA
2 stops23h 25mJapan Airlines
Deal found 11/2$1,712
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:10 amDCA - GMP
2 stops25h 55mJapan Airlines
Thu 12/118:00 amGMP - DCA
2 stops22h 25mJapan Airlines
Deal found 11/4$1,752

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 November 5, 2025.
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

Reagan-National

Fly to

South Korea

Route

Depart

Return

Price

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 1/13

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Fri 1/23

8:35 pm-4:01 pm

2 stops33h 26m

$1,161

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 1/20

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Fri 1/30

8:35 pm-4:01 pm

2 stops33h 26m

$1,184

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 1/21

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Fri 1/30

8:35 pm-4:01 pm

2 stops33h 26m

$1,184

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 1/9

6:56 pm-6:35 pm

2 stops33h 39m

Incheon Intl

Sat 1/24

8:35 pm-5:56 pm

2 stops35h 21m

$1,199

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 1/21

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Thu 1/29

8:35 pm-4:01 pm

2 stops33h 26m

$1,203

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Tue 11/18

5:00 pm-8:05 pm

2 stops37h 05m

Busan Gimhae

Tue 12/2

8:50 pm-8:00 pm

2 stops37h 10m

$1,246

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 1/17

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Sun 1/25

8:35 pm-4:01 pm

2 stops57h 26m

$1,257

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 1/16

5:09 pm-6:35 pm

2 stops35h 26m

Incheon Intl

Sun 1/25

8:35 pm-4:01 pm

2 stops57h 26m

$1,291

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 11/10

9:45 am-6:35 pm

2 stops42h 50m

Incheon Intl

Sun 12/7

3:00 pm-6:54 pm

2 stops41h 54m

$1,350

Washington, D.C.Daegu

DCA - TAE

DCATAE

Washington, D.C. Reagan-National

Thu 4/16

9:30 am-11:00 am

3 stops60h 30m

Daegu

Wed 4/22

12:00 pm-8:01 pm

3 stops69h 01m

$1,466

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 48 results
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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, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $537). Flying from Washington, D.C. Reagan-National Airport to South Korea in June is currently the most expensive (average of $1,558). 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.

What is the cheapest time of day to fly from DCA to KR?

Find hourly flight availability from Reagan-National to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2025.

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to South Korea is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 35% on airfare.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to South Korea flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 5, 2025.
Read reviews from past customers who have flown Korean Air, American Airlines, and 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.
Korean Air
8.4
Very good
1,160 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,160 reviews
Korean Air
8.4
Very good
1,160 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
American Airlines
7.2
Good
11,042 reviews
Korean Air
8.4
Very good
1,160 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,409 reviews
Korean Air
8.4
Very good
1,160 reviews

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 $2,012, Alaska Airlines can have you in South Korea from Washington, D.C. Reagan-National Airport in 21h 45m. The distance from Washington, D.C. Reagan-National Airport to South Korea is about 7055 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, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $537). Flying from Washington, D.C. Reagan-National Airport to South Korea in June is currently the most expensive (average of $1,558). 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

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Alternative routes for Reagan-National to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Reagan-National to South Korea

Discover the top 3 airlines 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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$864Average$1,267FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$877FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,583Average$1,944FlexibilityNo cancel feeOn-time81%

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