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$439+ Cheap flights from Reagan-National (DCA) to Seoul (SEL)

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SEL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Reagan-National to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,011
(Kiwi.com)

One-way from

$439
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,232
Provider with most accurate pricing for Washington, D.C. Reagan-National-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Seoul (SEL) flights.
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From Washington, D.C. Reagan-National to Seoul (SEL)
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One-way flight from Washington, D.C. Reagan-National to Seoul (SEL)
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Highest demand for flights based on searches. 18% potential increase in price ($312 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($80 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 Seoul

Cheapest flights from Reagan-National to Seoul
Explore the most affordable flight options available from Reagan-National to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 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 11/4. 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 Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:00 pmDCA - ICN
2 stops45h 10mMultiple Airlines
Sat 12/131:20 pmICN - DCA
1 stop20h 40mMultiple Airlines
Deal found 11/5$1,026
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:00 pmDCA - ICN
2 stops36h 20mMultiple Airlines
Tue 12/161:20 pmICN - DCA
1 stop20h 40mMultiple Airlines
Deal found 11/5$1,029
This Kiwi.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 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
Sun 12/146:55 pmICN - DCA
1 stop37h 04mMultiple Airlines
Deal found 11/5$1,030
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:59 amDCA - ICN
1 stop29h 11mMultiple Airlines
Mon 12/156:55 pmICN - DCA
1 stop37h 04mMultiple Airlines
Deal found 11/5$1,034
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:55 pmDCA - ICN
3 stops34h 40mMultiple Airlines
Wed 12/102:35 pmICN - DCA
3 stops35h 44mMultiple Airlines
Deal found 11/5$1,047
This Mytrip deal was found by Cheapflights users on 11/6. 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 12/78:40 pmDCA - GMP
3 stops35h 25mMultiple Airlines
Wed 12/108:00 amGMP - DCA
3 stops28h 35mMultiple Airlines
Deal found 11/6$1,439
This Mytrip deal was found by Cheapflights users on 11/6. 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 12/78:40 pmDCA - GMP
3 stops35h 25mMultiple Airlines
Fri 12/122:25 pmGMP - DCA
3 stops32h 30mMultiple Airlines
Deal found 11/6$1,589
This Mytrip deal was found by Cheapflights users on 11/6. 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.
Mon 12/19:40 amDCA - GMP
2 stops22h 25mMultiple Airlines
Wed 12/108:00 amGMP - DCA
2 stops28h 35mMultiple Airlines
Deal found 11/6$1,673

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
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

Reagan-National

Fly to

Seoul

Route

Depart

Return

Price

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 1/8

6:56 pm-6:35 pm

2 stops33h 39m

Incheon Intl

Mon 1/19

8:35 pm-5:56 pm

2 stops35h 21m

$1,133

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 2/7

6:56 pm-6:35 pm

2 stops33h 39m

Incheon Intl

Sat 2/14

8:35 pm-5:32 pm

2 stops34h 57m

$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

Mon 11/24

6:38 pm-1:55 pm

2 stops29h 17m

Incheon Intl

Mon 1/26

10:00 am-11:00 pm

2 stops27h 00m

$1,231

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 11/24

4:59 pm-1:55 pm

2 stops30h 56m

Incheon Intl

Sun 2/15

7:35 pm-11:00 pm

2 stops41h 25m

$1,251

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

Thu 2/12

9:39 am-12:45 pm

2 stops37h 06m

Incheon Intl

Fri 2/20

3:00 pm-6:59 pm

2 stops41h 59m

$1,311

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 4/2

6:58 pm-7:05 pm

2 stops35h 07m

Incheon Intl

Wed 4/22

3:10 pm-12:55 am

2 stops46h 45m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 3/31

11:59 am-9:10 pm

2 stops44h 11m

Incheon Intl

Tue 4/21

10:10 am-10:15 pm

2 stops49h 05m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 3/30

6:58 pm-9:10 pm

2 stops37h 12m

Incheon Intl

Wed 4/22

3:10 pm-12:55 am

2 stops46h 45m

$1,353

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 41 results
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Compare providers for flights from Reagan-National to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Seoul in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Seoul flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Seoul flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Seoul flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $537). Flying from Washington, D.C. Reagan-National Airport to Seoul 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 SEL?

Find hourly flight availability from Reagan-National to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Seoul is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 31% on airfare.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Seoul?

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated November 6, 2025.
Peruse reviews from past customers who have flown with Korean Air, American Airlines, and Air Canada from Washington, D.C. Reagan-National Airport to Seoul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,160 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
11,040 reviews
Korean Air
8.4
Very good
1,160 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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
10,416 reviews
Korean Air
8.4
Very good
1,160 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

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 Seoul. 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 Seoul?

    A quick flight from Washington, D.C. Reagan-National Airport to Seoul can take about 27h 05m. Alaska Airlines provides one of the quickest options available for as low as $1,732. The distance from Washington, D.C. Reagan-National Airport to Seoul is about 6939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Seoul round-trip?

    Our cheapest airline available from Washington, D.C. Reagan-National Airport to Seoul is Air Canada. Our recent data shows that you can find tickets from as low as $864 on this airline. Additional options worth looking into are American Airlines and Korean Air, starting at $877 and $1,583 round-trip. Air Canada is 38% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Seoul 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 Seoul?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $537). Flying from Washington, D.C. Reagan-National Airport to Seoul 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Reagan-National to Seoul

Discover the top 3 airlines that operate flights from Reagan-National to Seoul. 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 6, 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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