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Reagan-National

$417+ Cheap flights from Seoul (SEL) to Reagan-National (DCA)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — DCA
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Seoul to Reagan-National

Cheapest flights from Seoul to Reagan-National
Explore the most affordable flight options available from Seoul to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This Hanatour deal was found by Cheapflights users on 2/13. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:15 pm
ICN
-
DCA
1 stop27h 43m
American Airlines
Mon 3/26:37 pm
DCA
-
ICN
1 stop32h 08m
American Airlines
Deal found 2/13$626
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:15 pm
ICN
-
DCA
2 stops26h 08m
American Airlines
Mon 3/96:30 am
DCA
-
ICN
1 stop20h 25m
American Airlines
Deal found 2/10$792
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/177:15 pm
ICN
-
DCA
2 stops26h 08m
American Airlines
Tue 3/1710:30 pm
DCA
-
ICN
2 stops28h 25m
American Airlines
Deal found 2/12$798
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:35 pm
ICN
-
DCA
1 stop33h 31m
Multiple Airlines
Tue 3/36:59 pm
DCA
-
ICN
2 stops57h 36m
Multiple Airlines
Deal found 2/10$808
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/177:15 pm
ICN
-
DCA
1 stop27h 43m
American Airlines
Thu 2/265:00 am
DCA
-
ICN
2 stops21h 45m
American Airlines
Deal found 2/10$835
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:35 pm
ICN
-
DCA
1 stop33h 31m
Multiple Airlines
Wed 3/49:59 am
DCA
-
ICN
2 stops42h 36m
Multiple Airlines
Deal found 2/10$892
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:25 pm
GMP
-
DCA
2 stops38h 42m
ANA
Sun 3/18:20 am
DCA
-
GMP
2 stops37h 00m
ANA
Deal found 2/10$1,124
This Cheapflightsfares deal was found by Cheapflights users on 2/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:55 pm
GMP
-
DCA
2 stops31h 19m
ANA
Sat 4/251:00 pm
DCA
-
GMP
2 stops33h 05m
ANA
Deal found 2/11$1,137
This Booking.com deal was found by Cheapflights users on 2/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:50 pm
GMP
-
DCA
2 stops37h 02m
ANA
Tue 12/18:30 am
DCA
-
GMP
2 stops24h 00m
ANA
Deal found 2/13$1,162
This Trip.com deal was found by Cheapflights users on 2/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:55 pm
GMP
-
DCA
2 stops31h 19m
ANA
Sun 5/178:20 am
DCA
-
GMP
2 stops37h 45m
ANA
Deal found 2/13$1,166
This Japan Airlines deal was found by Cheapflights users on 2/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:00 am
GMP
-
DCA
2 stops27h 57m
Japan Airlines
Sun 11/295:45 pm
DCA
-
GMP
2 stops34h 35m
Japan Airlines
Deal found 2/13$1,216
This Japan Airlines deal was found by Cheapflights users on 2/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:05 pm
GMP
-
DCA
2 stops23h 52m
Japan Airlines
Wed 12/21:18 pm
DCA
-
GMP
2 stops39h 02m
Japan Airlines
Deal found 2/13$1,217

Find flight deals from Seoul to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Reagan-National (DCA). 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 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$637
(American Airlines)

One-way from

$417
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$834
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. Reagan-National flights.
Search Deals
From Seoul (SEL) to Washington, D.C. Reagan-National
Search Deals
One-way flight from Seoul (SEL) to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($80 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 Seoul to Reagan-National 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 14, 2026.
Use the filters below to find and compare flights from Seoul to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Seoul

Fly to

Reagan-National

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 3/11

5:55 pm-3:31 pm

2 stops34h 36m

Washington, D.C. Reagan-National

Wed 3/18

4:10 pm-4:15 pm

2 stops35h 05m

$925

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 6/24

5:45 pm-12:00 pm

2 stops31h 15m

Washington, D.C. Reagan-National

Tue 9/22

12:55 pm-4:05 pm

2 stops38h 10m

$934

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 3/31

5:45 pm-12:01 pm

2 stops55h 16m

Washington, D.C. Reagan-National

Tue 4/7

6:50 pm-10:20 pm

2 stops38h 30m

$936

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 2/24

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Thu 3/5

6:50 pm-5:10 pm

2 stops32h 20m

$940

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 2/24

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Tue 3/3

8:40 pm-5:10 pm

2 stops30h 30m

$940

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 3/18

5:55 pm-10:21 am

2 stops29h 26m

Washington, D.C. Reagan-National

Wed 5/6

6:59 am-5:30 pm

1 stop21h 31m

$940

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 2/24

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Wed 3/4

9:40 am-5:10 pm

2 stops41h 30m

$940

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 2/24

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Sun 3/1

8:40 pm-5:10 pm

2 stops30h 30m

$940

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 3/27

5:55 pm-10:21 am

2 stops29h 26m

Washington, D.C. Reagan-National

Fri 4/3

9:40 am-5:30 pm

1 stop18h 50m

$942

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 6/23

5:45 pm-12:00 pm

2 stops31h 15m

Washington, D.C. Reagan-National

Mon 9/28

6:55 pm-4:05 pm

2 stops32h 10m

$943

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 41 results
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  • Most accurate provider: When it comes to deals on Seoul-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Washington, D.C. Reagan-National Airport 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 Seoul-Washington, D.C. Reagan-National Airport 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 Seoul to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Seoul 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 Seoul to Washington, D.C. Reagan-National Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Seoul to Reagan-National. 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 Seoul to Washington, D.C. Reagan-National Airport?

    Departing from Seoul to Washington, D.C. Reagan-National Airport will take you 26h 08m. The distance from Seoul to Washington, D.C. Reagan-National Airport is about 6953 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

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See prices for flight routes from nearby airports that may be better suited for you.
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