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.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 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 SEL to DCA?

When flying from Seoul to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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.

$425+ Flights from Seoul to Washington, D.C. Reagan-National Airport

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1. Tell us where you want to go

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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 December 28, 2025.

Mon 12/2912:45 pmICN - DCA

1 stop22h 58mUnited Airlines

Mon 1/55:59 pmDCA - ICN

1 stop32h 16mUnited Airlines

Deal found 12/27

$521

Mon 12/293:50 pmGMP - DCA

2 stops20h 45mMultiple Airlines

Mon 1/56:59 amDCA - GMP

2 stops25h 36mMultiple Airlines

Deal found 12/27

$2,329

Mon 12/2910:55 pmICN - DCA

3 stops24h 00mMultiple Airlines

Mon 1/54:10 pmDCA - ICN

2 stops33h 50mMultiple Airlines

Deal found 12/27

$2,539

Best flights from Seoul to Reagan-National
Discover carefully curated flight deals from Seoul to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Fri 2/67:15 pmICN - DCA

1 stop17h 45mAmerican Airlines

Sun 2/87:31 pmDCA - ICN

2 stops31h 14mAmerican Airlines

Deal found 12/25

$478

Mon 2/28:35 pmICN - DCA

1 stop33h 34mHawaiian Airlines

Fri 2/208:00 amDCA - ICN

1 stop20h 35mHawaiian Airlines

Deal found 12/27

$579

Wed 2/1112:45 pmICN - DCA

1 stop18h 07mUnited Airlines

Mon 3/91:00 pmDCA - ICN

2 stops26h 40mUnited Airlines

Deal found 12/26

$617

Wed 2/117:15 pmICN - DCA

1 stop29h 39mAmerican Airlines

Mon 3/98:28 pmDCA - ICN

2 stops30h 27mAmerican Airlines

Deal found 12/28

$479

Tue 2/1012:45 pmICN - DCA

1 stop18h 07mUnited Airlines

Tue 2/177:00 amDCA - ICN

1 stop32h 40mUnited Airlines

Deal found 12/26

$618

Tue 4/712:05 pmGMP - DCA

2 stops23h 28mJapan Airlines

Wed 4/155:49 pmDCA - GMP

2 stops27h 56mJapan Airlines

Deal found 12/26

$1,249

Fri 3/66:00 pmICN - DCA

1 stop17h 45mUnited Airlines

Mon 3/91:00 pmDCA - ICN

2 stops26h 40mUnited Airlines

Deal found 12/27

$618

Tue 4/75:25 pmICN - DCA

1 stop28h 54mAmerican Airlines

Tue 4/146:30 amDCA - ICN

1 stop20h 00mAmerican Airlines

Deal found 12/26

$686

Fri 2/612:45 pmICN - DCA

2 stops23h 52mUnited Airlines

Sun 2/82:00 pmDCA - ICN

2 stops25h 40mUnited Airlines

Deal found 12/25

$652

Wed 2/118:00 amGMP - DCA

2 stops23h 08mMultiple Airlines

Mon 3/98:30 amDCA - GMP

2 stops24h 35mMultiple Airlines

Deal found 12/28

$1,592

Mon 2/97:15 pmICN - DCA

1 stop29h 33mAmerican Airlines

Mon 2/166:30 amDCA - ICN

1 stop20h 15mAmerican Airlines

Deal found 12/26

$725

Fri 3/68:00 amGMP - DCA

2 stops45h 59mJapan Airlines

Mon 3/95:00 pmDCA - GMP

2 stops52h 55mJapan Airlines

Deal found 12/25

$1,311

Mon 2/98:00 amGMP - DCA

2 stops23h 08mJapan Airlines

Mon 2/165:32 pmDCA - GMP

2 stops27h 23mJapan Airlines

Deal found 12/26

$1,314

Wed 2/188:00 amGMP - DCA

2 stops20h 54mJapan Airlines

Thu 5/149:30 amDCA - GMP

2 stops23h 20mJapan Airlines

Deal found 12/26

$1,417

Fri 2/208:00 amGMP - DCA

2 stops20h 54mJapan Airlines

Fri 5/157:55 amDCA - GMP

2 stops24h 55mJapan Airlines

Deal found 12/26

$1,425

Sun 3/18:00 amGMP - DCA

2 stops22h 57mJapan Airlines

Sat 3/146:06 amDCA - GMP

2 stops26h 59mJapan Airlines

Deal found 12/26

$1,514

Sun 1/2512:05 pmGMP - DCA

2 stops23h 58mJapan Airlines

Sun 2/16:10 amDCA - GMP

2 stops22h 10mJapan Airlines

Deal found 12/26

$1,548

Wed 2/118:00 amGMP - DCA

2 stops23h 08mJapan Airlines

Mon 3/98:30 amDCA - GMP

2 stops24h 35mJapan Airlines

Deal found 12/27

$1,592

Sun 1/118:00 amGMP - DCA

2 stops26h 44mJapan Airlines

Fri 1/166:59 amDCA - GMP

2 stops37h 56mJapan Airlines

Deal found 12/26

$1,639

Last-minute flights from Seoul to Reagan-National
Discover last-minute flight deals from Seoul to Reagan-National. Data last updated December 28, 2025 and is based on user searches.

Mon 12/2912:45 pmICN - DCA

1 stop22h 58mUnited Airlines

Mon 1/55:59 pmDCA - ICN

1 stop32h 16mUnited Airlines

Deal found 12/27

$521

Mon 12/293:50 pmGMP - DCA

2 stops20h 45mMultiple Airlines

Mon 1/56:59 amDCA - GMP

2 stops25h 36mMultiple Airlines

Deal found 12/27

$2,329

Sat 1/108:00 amGMP - DCA

2 stops20h 57mMultiple Airlines

Fri 1/166:30 amDCA - GMP

2 stops25h 35mMultiple Airlines

Deal found 12/28

$6,615

Sun 1/118:00 amGMP - DCA

2 stops26h 44mJapan Airlines

Fri 1/166:59 amDCA - GMP

2 stops37h 56mJapan Airlines

Deal found 12/26

$1,639

Sun 1/188:00 amGMP - DCA

2 stops23h 08mJapan Airlines

Sun 4/269:59 pmDCA - GMP

2 stops23h 46mJapan Airlines

Deal found 12/27

$4,794

Tue 1/2012:45 pmICN - DCA

1 stop18h 07mUnited Airlines

Sat 1/2411:00 amDCA - ICN

2 stops28h 40mUnited Airlines

Deal found 12/25

$979

Sun 1/258:35 pmICN - DCA

2 stops37h 25mMultiple Airlines

Sun 2/18:00 amDCA - ICN

1 stop20h 35mMultiple Airlines

Deal found 12/26

$905

Sun 1/257:15 pmICN - DCA

1 stop29h 33mAmerican Airlines

Sun 2/15:08 pmDCA - ICN

1 stop33h 37mAmerican Airlines

Deal found 12/26

$1,028

Sun 1/2512:05 pmGMP - DCA

2 stops23h 58mJapan Airlines

Sun 2/16:10 amDCA - GMP

2 stops22h 10mJapan Airlines

Deal found 12/26

$1,548

Mon 1/268:35 pmICN - DCA

2 stops61h 25mMultiple Airlines

Mon 2/28:59 amDCA - ICN

2 stops67h 36mMultiple Airlines

Deal found 12/27

$935

Mon 1/266:00 pmICN - DCA

1 stop17h 52mUnited Airlines

Mon 2/22:00 pmDCA - ICN

2 stops25h 40mUnited Airlines

Deal found 12/27

$946

Wed 1/2812:45 pmICN - DCA

1 stop18h 07mUnited Airlines

Wed 4/811:55 amDCA - ICN

2 stops27h 25mUnited Airlines

Deal found 12/26

$944

One-way flights from Seoul to Reagan-National
Search for one-way flight options from Seoul to Reagan-National. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Fri 1/306:55 pmICN - DCA

2 stops36h 04mMultiple Airlines

Deal found 12/26

$425

Mon 2/166:55 pmICN - DCA

2 stops56h 20mMultiple Airlines

Deal found 12/26

$430

Wed 4/86:20 pmICN - DCA

2 stops30h 45mMultiple Airlines

Deal found 12/26

$458

Wed 3/186:55 pmICN - DCA

2 stops31h 07mMultiple Airlines

Deal found 12/27

$473

Sun 3/296:20 pmICN - DCA

2 stops54h 44mMultiple Airlines

Deal found 12/27

$508

Wed 2/255:55 pmICN - DCA

2 stops32h 24mAir Canada

Deal found 12/28

$563

Fri 2/205:55 pmICN - DCA

2 stops30h 26mAir Canada

Deal found 12/27

$565

Wed 3/188:00 pmGMP - DCA

3 stops37h 00mMultiple Airlines

Deal found 12/27

$641

Fri 5/157:55 amGMP - DCA

2 stops20h 59mJapan Airlines

Deal found 12/26

$717

Tue 2/178:00 amGMP - DCA

2 stops22h 52mJapan Airlines

Deal found 12/26

$726

Wed 3/188:15 pmGMP - DCA

2 stops36h 45mEVA Air

Deal found 12/27

$742

Sun 3/297:55 amGMP - DCA

2 stops21h 42mMultiple Airlines

Deal found 12/27

$743

Find flight deals from Seoul to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$477 (American Airlines)
One-way from	$425 (Kiwi.com)
Popular in	August
Cheapest in	November
Average price	$933

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. 23% potential increase in price ($304 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($75 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 Seoul to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 2/6

7:15 pm-11:00 pm

1 stop17h 45m

Washington, D.C. Reagan-National

Sun 2/8

7:31 pm-4:45 pm

2 stops31h 14m

$478

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 2/11

7:15 pm-10:54 am

1 stop29h 39m

Washington, D.C. Reagan-National

Mon 3/9

8:28 pm-3:55 pm

2 stops30h 27m

$479

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 2/2

8:35 pm-4:09 pm

1 stop33h 34m

Washington, D.C. Reagan-National

Fri 2/20

8:00 am-6:35 pm

1 stop20h 35m

$579

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 2/11

12:45 pm-4:52 pm

1 stop18h 07m

Washington, D.C. Reagan-National

Mon 3/9

1:00 pm-4:40 am

2 stops26h 40m

$617

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 2/10

12:45 pm-4:52 pm

1 stop18h 07m

Washington, D.C. Reagan-National

Tue 2/17

7:00 am-5:40 am

1 stop32h 40m

$618

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 3/6

6:00 pm-9:45 pm

1 stop17h 45m

Washington, D.C. Reagan-National

Mon 3/9

1:00 pm-4:40 am

2 stops26h 40m

$618

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 2/6

12:45 pm-10:37 pm

2 stops23h 52m

Washington, D.C. Reagan-National

Sun 2/8

2:00 pm-5:40 am

2 stops25h 40m

$652

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 4/7

5:25 pm-9:19 am

1 stop28h 54m

Washington, D.C. Reagan-National

Tue 4/14

6:30 am-3:30 pm

1 stop20h 00m

$686

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 2/9

7:15 pm-10:48 am

1 stop29h 33m

Washington, D.C. Reagan-National

Mon 2/16

6:30 am-4:45 pm

1 stop20h 15m

$725

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 4/7

12:05 pm-10:33 pm

2 stops23h 28m

Washington, D.C. Reagan-National

Wed 4/15

5:49 pm-10:45 am

2 stops27h 56m

$1,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 39 results

Compare providers for flights from Seoul to Reagan-National

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Reagan-National in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 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 Seoul-Washington, D.C. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seoul-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >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 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 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.

Reviews of airlines servicing Reagan-National

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

10,562 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Air Canada

7.1

Good

10,562 reviews

Air Canada

7.1

Good

10,562 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Related info for your journey

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 17h 45m. 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.

See more FAQs

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Seoul to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$688	Average$994	FlexibilityNo cancel fee	On-time67%

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$425+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seoul to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seoul to Reagan-National

Cheapest flights from Seoul to Reagan-NationalExplore 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 December 28, 2025.

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 December 28, 2025.

Find flight deals from Seoul to Reagan-National

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 Seoul to Washington, D.C. Reagan-National Airport that are best for you.

Compare providers for flights from Seoul to Reagan-National

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 Seoul to Reagan-National in December.

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.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Washington, D.C. Reagan-National Airport

Reviews of airlines servicing Reagan-National

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.

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?

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

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

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

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

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

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.

Top airline flying from Seoul to Reagan-National

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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 December 28, 2025.