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$453+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SEL
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap 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 February 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/39:59 am
DCA
-
ICN
1 stop40h 21m
Multiple Airlines
Wed 3/116:55 pm
ICN
-
DCA
2 stops31h 07m
Multiple Airlines
Deal found 2/8$970
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/42:00 pm
DCA
-
ICN
2 stops36h 20m
Multiple Airlines
Mon 3/166:55 pm
ICN
-
DCA
1 stop36h 04m
Multiple Airlines
Deal found 2/9$1,014
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 4/79:59 am
DCA
-
ICN
1 stop40h 46m
Multiple Airlines
Wed 5/66:20 pm
ICN
-
DCA
2 stops35h 39m
Multiple Airlines
Deal found 2/8$1,022
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 4/219:59 am
DCA
-
ICN
1 stop40h 46m
Multiple Airlines
Mon 5/1110:00 pm
ICN
-
DCA
2 stops31h 59m
Multiple Airlines
Deal found 2/8$1,033
This Kiwi.com deal was found by Cheapflights users on 2/7. 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 3/319:59 am
DCA
-
ICN
1 stop40h 46m
Multiple Airlines
Wed 4/156:20 pm
ICN
-
DCA
2 stops35h 39m
Multiple Airlines
Deal found 2/7$1,045
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 4/79:59 am
DCA
-
ICN
1 stop40h 46m
Multiple Airlines
Tue 4/289:10 pm
ICN
-
DCA
2 stops37h 49m
Multiple Airlines
Deal found 2/8$1,057
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:59 am
DCA
-
ICN
1 stop30h 11m
Multiple Airlines
Wed 3/187:15 am
ICN
-
DCA
2 stops25h 45m
Multiple Airlines
Deal found 2/10$1,083
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 pm
DCA
-
ICN
2 stops37h 10m
Multiple Airlines
Wed 5/276:00 pm
ICN
-
DCA
1 stop36h 59m
Multiple Airlines
Deal found 2/10$1,097
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/49:59 am
DCA
-
ICN
1 stop29h 11m
Multiple Airlines
Wed 3/1110:20 pm
ICN
-
DCA
2 stops27h 42m
Multiple Airlines
Deal found 2/8$1,099
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/156:00 pm
DCA
-
ICN
2 stops36h 30m
Multiple Airlines
Wed 3/46:55 pm
ICN
-
DCA
1 stop37h 04m
Multiple Airlines
Deal found 2/10$1,102
This Kiwi.com deal was found by Cheapflights users on 2/7. 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.
Fri 4/39:59 am
DCA
-
ICN
1 stop30h 21m
Multiple Airlines
Wed 4/156:20 pm
ICN
-
DCA
2 stops35h 39m
Multiple Airlines
Deal found 2/7$1,105
This Kiwi.com deal was found by Cheapflights users on 2/7. 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 3/319:59 am
DCA
-
ICN
1 stop40h 46m
Multiple Airlines
Tue 4/149:10 pm
ICN
-
DCA
2 stops37h 49m
Multiple Airlines
Deal found 2/7$1,117

Find 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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$970
(Kiwi.com)

One-way from

$453
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$1,179
Provider with most accurate pricing for Washington, D.C. Reagan-National-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Seoul (SEL) flights.
Search Deals
From Washington, D.C. Reagan-National to Seoul (SEL)
Search Deals
One-way flight from Washington, D.C. Reagan-National to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($89 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 11, 2026.
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

Mon 3/16

4:59 pm-12:45 pm

2 stops54h 46m

Incheon Intl

Thu 4/16

8:00 am-11:59 pm

2 stops28h 59m

$1,165

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 5/2

6:59 pm-5:30 pm

2 stops33h 31m

Incheon Intl

Mon 5/11

7:35 pm-5:59 pm

2 stops35h 24m

$1,221

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 4/25

5:00 pm-11:00 am

2 stops29h 00m

Incheon Intl

Fri 5/8

7:45 pm-8:00 pm

2 stops37h 15m

$1,292

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 3/23

8:40 pm-4:15 pm

2 stops30h 35m

Incheon Intl

Tue 4/21

5:45 pm-10:19 am

2 stops29h 34m

$1,326

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/8

11:36 am-12:40 pm

2 stops36h 04m

Incheon Intl

Tue 5/5

3:10 pm-11:59 pm

2 stops45h 49m

$1,330

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 4/5

5:20 pm-6:35 pm

2 stops36h 15m

Incheon Intl

Wed 5/6

7:35 pm-5:59 pm

2 stops35h 24m

$1,349

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 3/8

6:50 pm-5:25 pm

1 stop33h 35m

Incheon Intl

Sat 3/14

5:55 pm-12:19 pm

2 stops31h 24m

$1,367

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/7

6:59 pm-7:05 pm

2 stops35h 06m

Incheon Intl

Sat 5/9

1:55 am-12:30 am

2 stops35h 35m

$1,380

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 4/11

7:00 pm-12:40 pm

2 stops28h 40m

Incheon Intl

Thu 4/16

1:55 am-11:59 pm

2 stops35h 04m

$1,400

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/8

6:59 pm-2:05 pm

2 stops30h 06m

Incheon Intl

Sun 5/3

1:55 am-11:59 pm

2 stops35h 04m

$1,405

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 42 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Seoul flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $369). Flying from Washington, D.C. Reagan-National Airport to Seoul 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 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 February 11, 2026.
Peruse reviews from past customers who have flown with 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.
Air Canada
7.1
Good
10,708 reviews

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,708 reviews
Air Canada
7.1
Good
10,708 reviews

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

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 30h 35m. Cathay Pacific provides one of the quickest options available for as low as $1,326. The distance from Washington, D.C. Reagan-National Airport to Seoul is about 6953 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly 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 $1,138 on this airline. Air Canada is 25% 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, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $369). Flying from Washington, D.C. Reagan-National Airport to Seoul 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Reagan-National to Seoul

Discover the top airline 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,138Average$1,320FlexibilityNo cancel feeOn-time67%

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