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$684+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SEL
Jul 2 — Jul 91
Thu 7/2
Thu 7/9
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 June 2, 2026.

This KAYAK deal was found by Cheapflights users on 5/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:40 am
DCA
-
ICN
2 stops26h 45m
Cathay Pacific
Tue 9/291:55 am
ICN
-
DCA
2 stops44h 07m
Cathay Pacific
Deal found 5/28$1,192
This Cathay Pacific deal was found by Cheapflights users on 5/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:00 am
DCA
-
ICN
2 stops26h 25m
Multiple Airlines
Thu 9/178:00 am
ICN
-
DCA
2 stops25h 06m
Multiple Airlines
Deal found 5/28$1,223
This Ovago deal was found by Cheapflights users on 5/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:59 am
DCA
-
ICN
2 stops37h 41m
Multiple Airlines
Fri 9/118:00 am
ICN
-
DCA
2 stops46h 59m
Multiple Airlines
Deal found 5/28$1,243
This FlightHub deal was found by Cheapflights users on 5/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:58 pm
DCA
-
ICN
2 stops28h 42m
Multiple Airlines
Mon 10/267:35 pm
ICN
-
DCA
2 stops35h 22m
Multiple Airlines
Deal found 5/30$1,254
This Cathay Pacific deal was found by Cheapflights users on 6/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:59 pm
DCA
-
ICN
2 stops28h 41m
Multiple Airlines
Tue 9/11:55 am
ICN
-
DCA
2 stops35h 03m
Multiple Airlines
Deal found 6/1$1,266
This Cathay Pacific deal was found by Cheapflights users on 6/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:35 am
DCA
-
ICN
2 stops42h 30m
Multiple Airlines
Mon 9/148:00 am
ICN
-
DCA
2 stops25h 06m
Multiple Airlines
Deal found 6/1$1,268
This Justfly.com deal was found by Cheapflights users on 5/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:31 am
DCA
-
ICN
2 stops42h 34m
Cathay Pacific
Wed 9/308:00 am
ICN
-
DCA
2 stops25h 06m
Cathay Pacific
Deal found 5/30$1,279
This Expedia deal was found by Cheapflights users on 5/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:59 pm
DCA
-
ICN
2 stops32h 36m
Alaska Airlines
Mon 11/168:00 pm
ICN
-
DCA
2 stops35h 59m
Alaska Airlines
Deal found 5/31$1,284
This KAYAK deal was found by Cheapflights users on 5/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:30 am
DCA
-
ICN
2 stops28h 55m
Multiple Airlines
Fri 10/168:00 am
ICN
-
DCA
2 stops25h 16m
Multiple Airlines
Deal found 5/29$1,288
This Cathay Pacific deal was found by Cheapflights users on 5/30. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:06 pm
DCA
-
ICN
2 stops29h 39m
Multiple Airlines
Tue 2/1610:00 am
ICN
-
DCA
2 stops27h 00m
Multiple Airlines
Deal found 5/30$1,308
This Cathay Pacific deal was found by Cheapflights users on 6/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:58 pm
DCA
-
ICN
2 stops30h 07m
Cathay Pacific
Mon 9/211:55 am
ICN
-
DCA
2 stops31h 11m
Cathay Pacific
Deal found 6/1$1,313
This oojo deal was found by Cheapflights users on 5/29. 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.
Tue 9/16:00 am
DCA
-
GMP
2 stops26h 15m
Japan Airlines
Wed 9/3012:05 pm
GMP
-
DCA
2 stops24h 05m
Japan Airlines
Deal found 5/29$1,497

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 June 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,192
(KAYAK)

One-way from

$684
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,676
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. 6% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 2, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 8/19

6:58 pm-12:40 pm

2 stops28h 42m

Incheon Intl

Sun 8/30

1:55 am-11:58 pm

2 stops35h 03m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/29

6:58 pm-12:25 am

2 stops40h 27m

Incheon Intl

Tue 10/20

8:00 am-11:58 pm

2 stops28h 58m

$1,313

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 9/6

11:35 am-2:05 pm

2 stops37h 30m

Incheon Intl

Mon 9/21

8:00 am-8:06 pm

2 stops25h 06m

$1,363

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 8/16

6:58 pm-2:05 pm

2 stops30h 07m

Incheon Intl

Sun 8/30

8:05 pm-11:58 pm

2 stops40h 53m

$1,363

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 9/5

6:58 pm-7:05 pm

2 stops35h 07m

Incheon Intl

Sun 9/20

3:10 pm-8:06 pm

2 stops41h 56m

$1,363

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/21

12:31 pm-7:05 pm

2 stops41h 34m

Incheon Intl

Wed 10/28

1:45 pm-8:16 pm

2 stops43h 31m

$1,398

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 11/22

5:00 pm-12:45 pm

2 stops29h 45m

Incheon Intl

Wed 12/2

3:00 pm-6:54 pm

2 stops41h 54m

$1,403

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 10/17

12:31 pm-2:05 pm

2 stops36h 34m

Incheon Intl

Sun 11/1

10:00 am-7:54 pm

2 stops46h 54m

$1,448

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/28

6:59 pm-11:00 am

2 stops27h 01m

Incheon Intl

Thu 10/15

7:45 pm-2:35 pm

3 stops31h 50m

$1,466

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 8/18

11:35 am-9:15 pm

2 stops20h 40m

Seoul Gimpo Intl

Fri 9/11

8:00 am-3:59 pm

2 stops44h 59m

$1,534

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 44 resultsSorted by cheapest first
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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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 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 $247). 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 June 2, 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
11,116 reviews

Comfort

7.1

Food

6.3

Boarding

7.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good
Air Canada
7.1
Good
11,116 reviews
Air Canada
7.1
Good
11,116 reviews

Comfort

7.1

Food

6.3

Boarding

7.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good

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 20h 40m. Cathay Pacific provides one of the quickest options available for as low as $1,534. 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 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 $1,137 on this airline.

  • 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 $247). 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

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Alternative routes for Reagan-National to Seoul

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

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 June 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,137Average$1,217FlexibilityNo cancel feeOn-time67%

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