Seoul

$593+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SEL
Jun 17 — Jun 241
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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 June 12, 2025.

Round-trip from

$1,295
(oojo)

One-way from

$593
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,948
From Washington, D.C. Reagan-National to Seoul (SEL)
One-way flight from Washington, D.C. Reagan-National to Seoul (SEL)
Highest demand for flights based on searches. 7% potential increase in price ($119 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($80 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 June 12, 2025.

This oojo deal was found by Cheapflights users on 6/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:30 amDCA - ICN
2 stops42h 35mCathay Pacific
Mon 9/2210:10 amICN - DCA
2 stops34h 48mCathay Pacific
Deal found 6/10$1,295
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1012:55 pmDCA - ICN
3 stops38h 10mMultiple Airlines
Tue 7/229:05 pmICN - DCA
2 stops27h 58mMultiple Airlines
Deal found 6/10$1,312
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:35 pmDCA - ICN
1 stop34h 40mAir Canada
Thu 10/165:45 pmICN - DCA
2 stops29h 35mAir Canada
Deal found 6/12$1,314
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:06 pmDCA - ICN
1 stop36h 29mAlaska Airlines
Thu 10/98:35 pmICN - DCA
2 stops61h 39mAlaska Airlines
Deal found 6/11$1,362
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 9/2210:45 pmDCA - GMP
2 stops23h 00mJapan Airlines
Wed 10/157:55 amGMP - DCA
2 stops25h 49mJapan Airlines
Deal found 6/12$1,462
This LOT deal was found by Cheapflights users on 6/11. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:30 amDCA - ICN
2 stops34h 55mLOT
Wed 9/38:15 amICN - DCA
2 stops51h 41mLOT
Deal found 6/11$1,486
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/248:20 amDCA - ICN
2 stops32h 40mPhilippine Airlines
Wed 9/108:30 pmICN - DCA
2 stops37h 29mPhilippine Airlines
Deal found 6/10$1,549
This Japan Airlines deal was found by Cheapflights users on 6/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1510:09 pmDCA - GMP
2 stops23h 36mMultiple Airlines
Fri 8/297:55 amGMP - DCA
2 stops19h 37mMultiple Airlines
Deal found 6/11$1,562
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Wed 8/273:30 pmDCA - GMP
2 stops30h 35mANA
Tue 9/27:55 pmGMP - DCA
2 stops31h 21mANA
Deal found 6/12$1,621

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 12, 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

Mon 9/1

6:30 am-2:05 pm

2 stops42h 35m

Incheon Intl

Mon 9/22

10:10 am-7:58 am

2 stops34h 48m

$1,295

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 7/10

12:55 pm-4:05 pm

3 stops38h 10m

Incheon Intl

Tue 7/22

9:05 pm-12:03 pm

2 stops27h 58m

$1,312

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/1

4:35 pm-4:15 pm

1 stop34h 40m

Incheon Intl

Thu 10/16

5:45 pm-10:20 am

2 stops29h 35m

$1,314

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 9/20

5:06 pm-6:35 pm

1 stop36h 29m

Incheon Intl

Thu 10/9

8:35 pm-9:14 pm

2 stops61h 39m

$1,362

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Mon 9/22

10:45 pm-10:45 am

2 stops23h 00m

Seoul Gimpo Intl

Wed 10/15

7:55 am-8:44 pm

2 stops25h 49m

$1,462

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 8/18

6:30 am-6:25 am

2 stops34h 55m

Incheon Intl

Wed 9/3

8:15 am-10:56 pm

2 stops51h 41m

$1,486

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 8/24

8:20 am-6:00 am

2 stops32h 40m

Incheon Intl

Mon 9/15

8:30 pm-8:59 pm

2 stops37h 29m

$1,549

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Fri 8/15

10:09 pm-10:45 am

2 stops23h 36m

Seoul Gimpo Intl

Fri 8/29

7:55 am-2:32 pm

2 stops19h 37m

$1,562

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 8/27

3:30 pm-11:05 am

2 stops30h 35m

Seoul Gimpo Intl

Tue 9/2

7:55 pm-2:16 pm

2 stops31h 21m

$1,621

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 8/24

8:00 am-9:35 pm

2 stops24h 35m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 27 results
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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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $1,000). Flying from Washington, D.C. Reagan-National Airport to Seoul in December is currently the most expensive (average of $1,635). 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 June 12, 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 28% on airfare.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 12, 2025.
See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington, D.C. to Seoul have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.3
Very good

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.
  • 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 Cathay Pacific. Our recent data shows that you can find tickets from as low as $1,295 on this airline. Additional options worth looking into are Air Canada and LOT, starting at $1,318 and $1,486 round-trip. Cathay Pacific is 9% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Seoul one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $605. However, be on the lookout for offers from Cathay Pacific and China Airlines, as they are both options that can get you from Washington, D.C. Reagan-National Airport to Seoul for a low price.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $1,000). Flying from Washington, D.C. Reagan-National Airport to Seoul in December is currently the most expensive (average of $1,635). 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$867Average$1,291FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$877Average$1,077FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,527Average$1,832FlexibilityNo cancel feeOn-time81%

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