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 26h 59m. Cathay Pacific provides one of the quickest options available for as low as $1,715. 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 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 American Airlines. Our recent data shows that you can find tickets from as low as $877 on this airline. An additional option worth looking into is Air Canada, starting at $1,169. American Airlines is 38% cheaper than the average price of flights available within the next 90 days to this destination.

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.

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).

What is the cheapest time of day to fly from DCA to SEL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Seoul as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Seoul flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Seoul flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$462+ Flights from Washington, D.C. Reagan-National Airport to Seoul

Q: How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Seoul?

Airfare is below average for this route at the moment. Washington, D.C. Reagan-National Airport to Seoul flights typically cost between $1,381 and $1,765 in February. The cheapest round-trip price found within the last 3 days was $1,154 on Multiple Airlines (Feb 10-Feb 17).

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

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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 December 30, 2025.

Wed 12/316:59 amDCA - ICN

1 stop21h 26mAir Canada

Sat 1/106:55 pmICN - DCA

2 stops31h 24mAir Canada

Deal found 12/28

$1,700

Mon 12/294:10 pmDCA - ICN

2 stops60h 15mAir Canada

Wed 1/145:55 pmICN - DCA

2 stops32h 24mAir Canada

Deal found 12/28

$1,731

Mon 12/299:59 amDCA - ICN

1 stop29h 11mMultiple Airlines

Wed 1/143:30 pmICN - DCA

2 stops42h 30mMultiple Airlines

Deal found 12/28

$1,762

Wed 12/314:10 pmDCA - ICN

2 stops33h 50mAir Canada

Mon 1/128:10 pmICN - DCA

1 stop26h 45mAir Canada

Deal found 12/29

$1,939

Tue 12/308:40 pmDCA - ICN

1 stop31h 45mAir Canada

Tue 1/66:55 pmICN - DCA

2 stops29h 26mAir Canada

Deal found 12/28

$2,134

Wed 12/316:15 amDCA - ICN

3 stops43h 30mMultiple Airlines

Sat 1/106:55 pmICN - DCA

2 stops28h 00mMultiple Airlines

Deal found 12/28

$2,139

Mon 12/296:35 pmDCA - ICN

2 stops29h 20mCathay Pacific

Tue 1/67:35 pmICN - DCA

2 stops35h 33mCathay Pacific

Deal found 12/28

$2,207

Wed 12/316:59 amDCA - GMP

2 stops25h 36mMultiple Airlines

Sat 1/107:40 pmGMP - DCA

2 stops57h 17mMultiple Airlines

Deal found 12/28

$2,351

Tue 12/302:07 pmDCA - GMP

2 stops38h 13mJapan Airlines

Tue 1/68:00 amGMP - DCA

2 stops28h 03mJapan Airlines

Deal found 12/28

$2,852

Mon 12/296:00 amDCA - GMP

2 stops50h 05mJapan Airlines

Tue 1/68:00 amGMP - DCA

2 stops23h 08mJapan Airlines

Deal found 12/28

$3,022

Sun 12/286:00 amDCA - GMP

2 stops26h 05mJapan Airlines

Sat 1/38:00 amGMP - DCA

2 stops24h 40mJapan Airlines

Deal found 12/28

$9,384

Best flights from Reagan-National to Seoul
Discover carefully curated flight deals from Reagan-National to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Tue 1/206:56 pmDCA - ICN

2 stops33h 39mMultiple Airlines

Sat 1/248:35 pmICN - DCA

2 stops35h 21mMultiple Airlines

Deal found 12/28

$1,226

Tue 3/2411:57 amDCA - ICN

2 stops35h 48mCathay Pacific

Thu 4/910:10 amICN - DCA

2 stops49h 05mCathay Pacific

Deal found 12/27

$1,322

Wed 4/293:30 pmDCA - GMP

2 stops30h 35mANA

Sun 5/107:55 pmGMP - DCA

2 stops31h 19mANA

Deal found 12/29

$1,692

Thu 3/126:06 amDCA - GMP

2 stops26h 59mJapan Airlines

Wed 4/17:55 amGMP - DCA

2 stops19h 46mJapan Airlines

Deal found 12/28

$1,715

Wed 3/45:00 pmDCA - ICN

2 stops27h 30mMultiple Airlines

Wed 6/37:45 pmICN - DCA

2 stops33h 34mMultiple Airlines

Deal found 12/29

$1,261

Wed 4/2911:36 amDCA - ICN

2 stops36h 04mCathay Pacific

Sun 5/101:40 pmICN - DCA

2 stops47h 50mCathay Pacific

Deal found 12/29

$1,353

Wed 4/296:59 pmDCA - ICN

2 stops35h 06mCathay Pacific

Tue 5/1210:10 amICN - DCA

2 stops27h 20mCathay Pacific

Deal found 12/29

$1,353

Tue 4/2811:36 amDCA - ICN

2 stops42h 29mCathay Pacific

Tue 5/1210:10 amICN - DCA

2 stops27h 20mCathay Pacific

Deal found 12/29

$1,353

Mon 3/303:30 pmDCA - GMP

2 stops30h 35mANA

Sun 4/127:55 pmGMP - DCA

2 stops37h 20mANA

Deal found 12/27

$1,703

Thu 1/156:10 amDCA - GMP

2 stops22h 10mJapan Airlines

Fri 5/157:55 amGMP - DCA

2 stops19h 45mJapan Airlines

Deal found 12/29

$1,728

Tue 4/2811:36 amDCA - ICN

2 stops36h 04mCathay Pacific

Tue 5/1910:10 amICN - DCA

2 stops27h 20mCathay Pacific

Deal found 12/29

$1,353

Sun 3/295:00 pmDCA - GMP

2 stops39h 50mJapan Airlines

Wed 4/87:20 pmGMP - DCA

2 stops40h 06mJapan Airlines

Deal found 12/27

$1,730

Mon 1/126:59 amDCA - GMP

2 stops25h 06mMultiple Airlines

Mon 1/268:00 amGMP - DCA

2 stops22h 18mMultiple Airlines

Deal found 12/28

$1,741

Wed 4/293:30 pmDCA - GMP

2 stops30h 35mANA

Fri 5/87:55 pmGMP - DCA

2 stops31h 19mANA

Deal found 12/29

$1,742

Tue 4/2811:36 amDCA - ICN

2 stops36h 04mCathay Pacific

Sun 5/171:40 pmICN - DCA

2 stops47h 50mCathay Pacific

Deal found 12/29

$1,353

Sun 3/295:00 pmDCA - GMP

2 stops39h 50mJapan Airlines

Sun 4/127:55 amGMP - DCA

2 stops27h 31mJapan Airlines

Deal found 12/27

$1,730

Thu 3/2611:57 amDCA - ICN

2 stops41h 38mCathay Pacific

Tue 4/148:05 pmICN - DCA

2 stops39h 10mCathay Pacific

Deal found 12/27

$1,353

Tue 2/245:00 pmDCA - GMP

2 stops27h 55mJapan Airlines

Thu 4/167:55 amGMP - DCA

2 stops19h 45mJapan Airlines

Deal found 12/30

$1,732

Thu 4/3011:36 amDCA - ICN

2 stops42h 29mCathay Pacific

Thu 5/211:40 pmICN - DCA

2 stops44h 19mCathay Pacific

Deal found 12/29

$1,403

Tue 2/35:45 pmDCA - GMP

2 stops27h 10mJapan Airlines

Tue 2/177:40 pmGMP - DCA

2 stops31h 04mJapan Airlines

Deal found 12/30

$1,732

Thu 4/3011:36 amDCA - ICN

2 stops44h 34mCathay Pacific

Sat 5/238:05 pmICN - DCA

2 stops37h 54mCathay Pacific

Deal found 12/29

$1,403

Wed 3/115:00 pmDCA - GMP

2 stops36h 20mJapan Airlines

Wed 4/87:55 amGMP - DCA

2 stops20h 59mJapan Airlines

Deal found 12/28

$1,734

Last-minute flights from Reagan-National to Seoul
Discover last-minute flight deals from Reagan-National to Seoul. Data last updated December 30, 2025 and is based on user searches.

Sat 1/102:00 pmDCA - ICN

2 stops40h 30mMultiple Airlines

Sun 5/106:20 pmICN - DCA

1 stop36h 39mMultiple Airlines

Deal found 12/29

$1,167

Sun 1/186:56 pmDCA - ICN

1 stop35h 34mMultiple Airlines

Wed 2/46:55 pmICN - DCA

1 stop37h 01mMultiple Airlines

Deal found 12/28

$1,178

Mon 1/195:01 pmDCA - ICN

1 stop22h 19mMultiple Airlines

Wed 2/186:55 pmICN - DCA

2 stops36h 04mMultiple Airlines

Deal found 12/29

$1,171

Tue 1/206:56 pmDCA - ICN

2 stops33h 39mMultiple Airlines

Thu 1/228:35 pmICN - DCA

2 stops59h 21mMultiple Airlines

Deal found 12/28

$1,156

Sun 1/255:01 pmDCA - ICN

1 stop22h 19mMultiple Airlines

Thu 2/59:20 pmICN - DCA

2 stops38h 39mMultiple Airlines

Deal found 12/28

$1,166

Sun 1/255:01 pmDCA - ICN

1 stop22h 19mMultiple Airlines

Fri 2/66:55 pmICN - DCA

1 stop37h 01mMultiple Airlines

Deal found 12/28

$1,169

Sun 1/256:56 pmDCA - ICN

1 stop35h 34mMultiple Airlines

Sun 2/16:55 pmICN - DCA

1 stop37h 01mMultiple Airlines

Deal found 12/28

$1,174

Tue 1/278:00 amDCA - ICN

2 stops31h 10mMultiple Airlines

Sat 1/314:10 pmICN - DCA

1 stop19h 49mMultiple Airlines

Deal found 12/28

$1,183

Wed 1/289:59 amDCA - ICN

2 stops42h 46mMultiple Airlines

Thu 2/57:45 pmICN - DCA

2 stops38h 15mMultiple Airlines

Deal found 12/29

$1,168

Wed 1/285:01 pmDCA - ICN

1 stop22h 19mMultiple Airlines

Sun 2/18:35 pmICN - DCA

2 stops30h 27mMultiple Airlines

Deal found 12/28

$1,176

Thu 1/296:56 pmDCA - ICN

1 stop35h 34mMultiple Airlines

Wed 2/186:55 pmICN - DCA

1 stop37h 04mMultiple Airlines

Deal found 12/29

$1,180

Sat 1/316:56 pmDCA - ICN

1 stop35h 34mMultiple Airlines

Fri 2/138:35 amICN - DCA

2 stops25h 30mMultiple Airlines

Deal found 12/28

$1,179

One-way flights from Reagan-National to Seoul
Search for one-way flight options from Reagan-National to Seoul. Find affordable one-way fares based on user searches. Data last updated December 30, 2025.

Tue 1/276:00 pmDCA - ICN

2 stops36h 30mMultiple Airlines

Deal found 12/28

$462

Sat 1/172:00 pmDCA - ICN

3 stops41h 35mMultiple Airlines

Deal found 12/29

$467

Tue 2/172:00 pmDCA - ICN

2 stops40h 30mMultiple Airlines

Deal found 12/29

$494

Thu 1/226:00 pmDCA - ICN

2 stops36h 30mMultiple Airlines

Deal found 12/27

$508

Wed 3/189:59 amDCA - ICN

1 stop30h 11mMultiple Airlines

Deal found 12/29

$520

Mon 1/266:00 pmDCA - ICN

3 stops39h 00mMultiple Airlines

Deal found 12/28

$545

Mon 1/122:00 pmDCA - ICN

3 stops41h 35mMultiple Airlines

Deal found 12/29

$554

Fri 3/139:59 amDCA - ICN

1 stop41h 21mMultiple Airlines

Deal found 12/29

$573

Mon 1/265:09 pmDCA - GMP

3 stops55h 01mMultiple Airlines

Deal found 12/28

$626

Sat 1/176:00 pmDCA - GMP

3 stops54h 10mMultiple Airlines

Deal found 12/29

$657

Sun 4/269:59 amDCA - GMP

2 stops43h 11mEVA Air

Deal found 12/29

$674

Tue 1/276:00 pmDCA - GMP

3 stops54h 10mMultiple Airlines

Deal found 12/28

$677

Find flight deals from Reagan-National to Seoul

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,154 (Mytrip)
One-way from	$462 (Kiwi.com)
Popular in	June
Cheapest in	December
Average price	$1,060

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. 10% potential increase in price ($165 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 1/20

6:56 pm-6:35 pm

2 stops33h 39m

Incheon Intl

Sat 1/24

8:35 pm-5:56 pm

2 stops35h 21m

$1,226

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 3/4

5:00 pm-10:30 am

2 stops27h 30m

Incheon Intl

Wed 6/3

7:45 pm-4:19 pm

2 stops33h 34m

$1,261

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 3/24

11:57 am-12:45 pm

2 stops35h 48m

Incheon Intl

Thu 4/9

10:10 am-10:15 pm

2 stops49h 05m

$1,322

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/29

11:36 am-12:40 pm

2 stops36h 04m

Incheon Intl

Sun 5/10

1:40 pm-12:30 am

2 stops47h 50m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/29

6:59 pm-7:05 pm

2 stops35h 06m

Incheon Intl

Tue 5/12

10:10 am-12:30 am

2 stops27h 20m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/28

11:36 am-7:05 pm

2 stops42h 29m

Incheon Intl

Tue 5/12

10:10 am-12:30 am

2 stops27h 20m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/28

11:36 am-12:40 pm

2 stops36h 04m

Incheon Intl

Tue 5/19

10:10 am-12:30 am

2 stops27h 20m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/28

11:36 am-12:40 pm

2 stops36h 04m

Incheon Intl

Sun 5/17

1:40 pm-12:30 am

2 stops47h 50m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 3/26

11:57 am-6:35 pm

2 stops41h 38m

Incheon Intl

Tue 4/14

8:05 pm-10:15 pm

2 stops39h 10m

$1,353

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 4/30

11:36 am-7:05 pm

2 stops42h 29m

Incheon Intl

Thu 5/21

1:40 pm-8:59 pm

2 stops44h 19m

$1,403

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 38 results

Compare providers for flights from Reagan-National to Seoul

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Seoul flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $537). Flying from Washington, D.C. Reagan-National Airport to Seoul in January is currently the most expensive (average of $1,611). 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.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Seoul?

Reviews of airlines servicing Seoul

Peruse reviews from past customers who have flown with American Airlines and 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.

American Airlines

7.2

Good

11,074 reviews

Reviews

1 / 20

10.0

Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

American Airlines

7.2

Good

11,074 reviews

American Airlines

7.2

Good

11,074 reviews

Reviews

1 / 20

10.0

Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Air Canada

7.1

Good

10,564 reviews

American Airlines

7.2

Good

11,074 reviews

Reviews

1 / 20

10.0

Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

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 26h 59m. Cathay Pacific provides one of the quickest options available for as low as $1,715. 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 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 American Airlines. Our recent data shows that you can find tickets from as low as $877 on this airline. An additional option worth looking into is Air Canada, starting at $1,169. American Airlines is 38% 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, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Seoul (average of $537). Flying from Washington, D.C. Reagan-National Airport to Seoul in January is currently the most expensive (average of $1,611). 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

Top 2 airlines flying from Reagan-National to Seoul

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$877	Average$877	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$1,169	Average$1,320	FlexibilityNo cancel fee	On-time67%

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$462+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Seoul with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Seoul

Cheapest flights from Reagan-National to SeoulExplore 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 December 30, 2025.

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 December 30, 2025.

Find flight deals from Reagan-National to Seoul

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Seoul that are best for you.

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 December.

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.

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?

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Seoul?

Reviews of airlines servicing Seoul

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?

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Seoul round-trip?

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

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

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

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

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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 December 30, 2025.