HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$381+ Cheap flights from Seoul (SEL) to Reagan-National (DCA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — DCA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 September 15, 2025.

Round-trip from

$452
(Gotogate)

One-way from

$382
(Trip.com)

Popular in

August

Cheapest in

February

Average price

$871
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. 17% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($75 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 15, 2025.

This Onlinetour deal was found by Cheapflights users on 9/13. 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 Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:05 pmICN - DCA
1 stop35h 59mAir Canada
Mon 9/224:35 pmDCA - ICN
1 stop34h 40mAir Canada
Deal found 9/13$381
This Mytrip deal was found by Cheapflights users on 9/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:45 pmICN - DCA
2 stops31h 23mAir Canada
Sun 11/94:10 pmDCA - ICN
2 stops35h 00mAir Canada
Deal found 9/13$446
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:55 pmICN - DCA
2 stops31h 24mAir Canada
Wed 11/511:05 amDCA - ICN
2 stops40h 05mAir Canada
Deal found 9/14$452
This Air Canada deal was found by Cheapflights users on 9/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:55 pmICN - DCA
2 stops29h 31mAir Canada
Thu 2/124:10 pmDCA - ICN
2 stops35h 00mAir Canada
Deal found 9/13$471
This Air Canada deal was found by Cheapflights users on 9/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:55 pmICN - DCA
2 stops29h 31mAir Canada
Thu 2/54:10 pmDCA - ICN
2 stops35h 00mAir Canada
Deal found 9/12$472
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:55 pmICN - DCA
2 stops29h 31mAir Canada
Fri 11/218:40 pmDCA - ICN
2 stops30h 30mAir Canada
Deal found 9/14$477
This Air Canada deal was found by Cheapflights users on 9/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:55 pmICN - DCA
2 stops29h 31mAir Canada
Tue 2/38:40 pmDCA - ICN
2 stops30h 30mAir Canada
Deal found 9/12$478
This YBTour deal was found by Cheapflights users on 9/13. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:50 pmGMP - DCA
2 stops31h 20mANA
Wed 11/57:30 amDCA - GMP
2 stops37h 50mANA
Deal found 9/13$1,091
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:00 amGMP - DCA
2 stops36h 50mJapan Airlines
Fri 11/146:10 amDCA - GMP
2 stops25h 55mJapan Airlines
Deal found 9/12$1,226
This Japan Airlines deal was found by Cheapflights users on 9/15. 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 10/107:55 amGMP - DCA
2 stops28h 02mJapan Airlines
Sat 10/187:06 pmDCA - GMP
2 stops37h 44mJapan Airlines
Deal found 9/15$1,249
This Japan Airlines deal was found by Cheapflights users on 9/15. 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 10/107:55 amGMP - DCA
2 stops28h 02mJapan Airlines
Mon 10/136:38 amDCA - GMP
2 stops50h 12mJapan Airlines
Deal found 9/15$1,266
This Japan Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 9/177:55 amGMP - DCA
2 stops21h 34mMultiple Airlines
Wed 10/2210:45 pmDCA - GMP
2 stops23h 00mMultiple Airlines
Deal found 9/14$1,267

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 September 15, 2025.
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

Thu 2/19

12:45 pm-11:59 pm

2 stops25h 14m

Washington, D.C. Reagan-National

Mon 2/23

5:50 pm-4:15 pm

1 stop32h 25m

$503

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 12/3

6:00 pm-8:58 am

2 stops28h 58m

Washington, D.C. Reagan-National

Sun 12/7

12:00 pm-5:40 am

2 stops27h 40m

$503

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 11/12

6:00 pm-9:43 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Thu 2/5

3:30 pm-5:40 am

2 stops24h 10m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/18

6:00 pm-9:43 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Sat 2/14

5:50 pm-5:40 am

1 stop21h 50m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 11/19

6:00 pm-9:43 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Mon 2/9

5:59 pm-5:40 am

1 stop21h 41m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/11

6:00 pm-11:59 pm

2 stops19h 59m

Washington, D.C. Reagan-National

Tue 2/3

4:11 pm-5:40 am

2 stops23h 29m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/18

6:00 pm-9:43 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Tue 2/10

5:59 pm-5:40 am

1 stop21h 41m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/11

6:00 pm-11:59 pm

2 stops19h 59m

Washington, D.C. Reagan-National

Thu 2/5

3:30 pm-5:40 am

2 stops24h 10m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 11/19

6:00 pm-9:43 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Sat 2/14

3:30 pm-5:40 am

2 stops24h 10m

$504

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 11/10

9:25 pm-8:00 pm

2 stops36h 35m

Washington, D.C. Reagan-National

Tue 2/3

9:30 am-6:35 pm

2 stops43h 05m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 34 results
1
2
3
4

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

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

Currently, February is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Reagan-National Airport (average of $278). Flying from Seoul to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated September 15, 2025.
See what other customers who have flown with Air Canada from Seoul to Washington, D.C. Reagan-National Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

YVR - LAX

Seamless in all ways..arriving 25 minutes early into Los Angeles was outstanding
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

YVR - LAX

Seamless in all ways..arriving 25 minutes early into Los Angeles was outstanding

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 25h 14m. 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.

  • What is the cheapest airline to fly from Seoul to Washington, D.C. Reagan-National Airport round-trip?

    Our cheapest airline available from Seoul to Washington, D.C. Reagan-National Airport is Air Canada. Our recent data shows that you can find tickets from as low as $688 on this airline.

  • 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.

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

    Currently, February is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Reagan-National Airport (average of $278). Flying from Seoul to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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

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
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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.

Alternative routes for Seoul to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Dulles Intl flights
Incheon Intl to Reagan-National flights
Incheon Intl to Baltimore flights
Gimpo Intl to Baltimore flights
Busan to Dulles Intl flights

Top airline flying from Seoul to Reagan-National

Discover the top airline that operate flights from Seoul to Reagan-National. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$688Average$994FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.