What are the cheapest airlines flying 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 $506 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $552 and $570 round-trip.

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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $405. However, be on the lookout for offers from Japan Airlines and Asiana Airlines, as they are both options that can get you from Seoul to Washington, D.C. Reagan-National Airport for a low price.

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

Travelers seeking maximum savings on their Seoul to Washington, D.C. Reagan-National Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 month to fly from Seoul to Washington, D.C. Reagan-National Airport?

Flights from Seoul to Washington, D.C. Reagan-National Airport lean towards being more expensive in July. Prices are generally better when you fly from Seoul to Washington, D.C. Reagan-National Airport in February, with the cheapest ticket starting at $748.

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.

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.

$405+ Flights from Seoul to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Seoul to Reagan-National

Round-trip from	$506 (WhyPayMore)
One-way from	$405 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$1,216

From Seoul (SEL) to Washington, D.C. Reagan-National

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One-way flight from Seoul (SEL) to Washington, D.C. Reagan-National

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Highest demand for flights based on searches. 9% potential increase in price ($112 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 July 31, 2025.

Wed 9/176:00 pmICN - DCA

1 stop16h 51mAir Canada

Wed 10/224:35 pmDCA - ICN

1 stop34h 40mAir Canada

Deal found 7/30

$506

Thu 9/114:50 pmICN - DCA

1 stop17h 47mUnited Airlines

Wed 9/245:59 pmDCA - ICN

1 stop21h 21mUnited Airlines

Deal found 7/31

$552

Mon 11/38:35 pmICN - DCA

1 stop34h 18mAlaska Airlines

Thu 11/65:00 pmDCA - ICN

1 stop35h 35mAlaska Airlines

Deal found 7/31

$570

Sat 9/207:55 amGMP - DCA

2 stops21h 24mMultiple Airlines

Sat 9/2710:45 pmDCA - GMP

2 stops23h 00mMultiple Airlines

Deal found 7/30

$991

Wed 11/2612:25 pmGMP - DCA

2 stops38h 34mANA

Tue 12/22:00 pmDCA - GMP

2 stops42h 30mANA

Deal found 7/30

$1,020

Thu 9/117:55 amGMP - DCA

2 stops19h 29mJapan Airlines

Wed 9/249:59 amDCA - GMP

2 stops22h 51mJapan Airlines

Deal found 7/31

$1,064

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 July 31, 2025.

Wed 9/176:00 pmICN - DCA

1 stop16h 51mAir Canada

Wed 10/224:35 pmDCA - ICN

1 stop34h 40mAir Canada

Deal found 7/30

$506

Thu 9/114:50 pmICN - DCA

1 stop17h 47mUnited Airlines

Wed 9/245:59 pmDCA - ICN

1 stop21h 21mUnited Airlines

Deal found 7/31

$552

Mon 11/38:35 pmICN - DCA

1 stop34h 18mAlaska Airlines

Thu 11/65:00 pmDCA - ICN

1 stop35h 35mAlaska Airlines

Deal found 7/31

$570

Sat 9/207:55 amGMP - DCA

2 stops21h 24mMultiple Airlines

Sat 9/2710:45 pmDCA - GMP

2 stops23h 00mMultiple Airlines

Deal found 7/30

$991

Wed 11/2612:25 pmGMP - DCA

2 stops38h 34mANA

Tue 12/22:00 pmDCA - GMP

2 stops42h 30mANA

Deal found 7/30

$1,020

Thu 9/117:55 amGMP - DCA

2 stops19h 29mJapan Airlines

Wed 9/249:59 amDCA - GMP

2 stops22h 51mJapan Airlines

Deal found 7/31

$1,064

Last-minute flights from Seoul to Reagan-National
Discover last-minute flight deals from Seoul to Reagan-National. Data last updated July 31, 2025 and is based on user searches.

Tue 8/54:50 pmICN - DCA

1 stop17h 37mUnited Airlines

Mon 8/117:00 amDCA - ICN

1 stop19h 00mUnited Airlines

Deal found 7/30

$1,171

Tue 8/58:40 amGMP - DCA

2 stops49h 22mANA

Sun 8/103:30 pmDCA - GMP

2 stops41h 50mANA

Deal found 7/30

$2,619

Tue 8/58:40 amGMP - DCA

2 stops49h 22mMultiple Airlines

Mon 8/118:40 pmDCA - GMP

2 stops36h 45mMultiple Airlines

Deal found 7/30

$2,819

Wed 8/69:25 pmICN - DCA

2 stops32h 18mAlaska Airlines

Wed 8/136:58 pmDCA - ICN

3 stops35h 02mAlaska Airlines

Deal found 7/31

$1,549

Wed 8/66:40 pmICN - DCA

1 stop16h 21mKorean Air

Sat 8/99:39 amDCA - ICN

1 stop17h 46mKorean Air

Deal found 7/30

$1,937

Fri 8/86:00 pmICN - DCA

1 stop16h 48mAir Canada

Mon 8/119:40 amDCA - ICN

1 stop17h 35mAir Canada

Deal found 7/30

$1,151

Sat 8/912:05 pmGMP - DCA

2 stops24h 13mJapan Airlines

Sat 8/166:45 amDCA - GMP

2 stops26h 05mJapan Airlines

Deal found 7/31

$1,613

Sun 8/105:25 pmICN - DCA

2 stops29h 05mAmerican Airlines

Sat 8/166:45 amDCA - ICN

1 stop19h 45mAmerican Airlines

Deal found 7/30

$943

Sun 8/1010:25 pmICN - DCA

2 stops35h 22mMultiple Airlines

Sun 8/179:40 amDCA - ICN

2 stops31h 50mMultiple Airlines

Deal found 7/31

$1,471

Sun 8/101:20 amICN - DCA

2 stops30h 46mQatar Airways

Sun 9/76:00 pmDCA - ICN

2 stops34h 05mQatar Airways

Deal found 7/31

$2,373

Mon 8/115:25 pmICN - DCA

1 stop33h 50mAmerican Airlines

Sat 8/165:00 amDCA - ICN

1 stop21h 30mAmerican Airlines

Deal found 7/30

$943

Fri 8/227:55 amGMP - DCA

2 stops19h 20mMultiple Airlines

Wed 8/2710:09 pmDCA - GMP

2 stops23h 36mMultiple Airlines

Deal found 7/31

$1,463

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 July 31, 2025.

Wed 10/156:00 pmICN - DCA

1 stop29h 20mAir Canada

Deal found 7/30

$405

Mon 9/226:20 pmICN - DCA

2 stops39h 39mMultiple Airlines

Deal found 7/31

$485

Wed 9/107:55 amGMP - DCA

2 stops28h 12mJapan Airlines

Deal found 7/30

$577

Tue 8/266:55 pmGMP - DCA

3 stops39h 04mMultiple Airlines

Deal found 7/29

$599

Mon 10/138:55 pmICN - DCA

1 stop34h 04mAsiana Airlines

Deal found 7/30

$646

Mon 10/1312:00 pmICN - DCA

2 stops46h 14mEVA Air

Deal found 7/30

$680

Tue 12/27:00 pmGMP - DCA

2 stops39h 55mEVA Air

Deal found 7/31

$708

Fri 10/37:55 pmGMP - DCA

2 stops38h 08mANA

Deal found 7/30

$1,516

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

Wed 9/17

6:00 pm-9:51 pm

1 stop16h 51m

Washington, D.C. Reagan-National

Wed 10/22

4:35 pm-4:15 pm

1 stop34h 40m

$506

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 9/11

4:50 pm-9:37 pm

1 stop17h 47m

Washington, D.C. Reagan-National

Wed 9/24

5:59 pm-4:20 am

1 stop21h 21m

$552

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 11/3

8:35 pm-4:53 pm

1 stop34h 18m

Washington, D.C. Reagan-National

Thu 11/6

5:00 pm-6:35 pm

1 stop35h 35m

$570

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Sat 9/20

7:55 am-4:19 pm

2 stops21h 24m

Washington, D.C. Reagan-National

Sat 9/27

10:45 pm-10:45 am

2 stops23h 00m

$991

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 11/26

12:25 pm-12:59 pm

2 stops38h 34m

Washington, D.C. Reagan-National

Tue 12/2

2:00 pm-10:30 pm

2 stops42h 30m

$1,020

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 9/11

7:55 am-2:24 pm

2 stops19h 29m

Washington, D.C. Reagan-National

Wed 9/24

9:59 am-9:50 pm

2 stops22h 51m

$1,064

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/15

6:00 pm-10:20 am

1 stop29h 20m

$405

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 9/22

6:20 pm-8:59 pm

2 stops39h 39m

$485

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 9/10

7:55 am-11:07 pm

2 stops28h 12m

$577

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Tue 8/26

6:55 pm-8:59 pm

3 stops39h 04m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 14 results

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

See what other customers who have flown with EVA Air, ANA, and Japan Airlines 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.

EVA Air

8.4

Very good

1,220 reviews

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

EVA Air

8.4

Very good

1,220 reviews

EVA Air

8.4

Very good

1,220 reviews

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

ANA

8.4

Very good

922 reviews

EVA Air

8.4

Very good

1,220 reviews

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

Japan Airlines

8.3

Very good

1,536 reviews

EVA Air

8.4

Very good

1,220 reviews

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

Asiana Airlines

8.2

Very good

468 reviews

EVA Air

8.4

Very good

1,220 reviews

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

Alaska Airlines

8.0

Very good

10,000 reviews

EVA Air

8.4

Very good

1,220 reviews

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

What are the cheapest airlines flying 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 $506 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $552 and $570 round-trip.
What are the cheapest airlines to fly from Seoul to Washington, D.C. Reagan-National Airport one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $405. However, be on the lookout for offers from Japan Airlines and Asiana Airlines, as they are both options that can get you from Seoul to Washington, D.C. Reagan-National Airport for a low price.
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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Fredericksburg

Gaithersburg

Towson

Linthicum Heights

Easton

Fairfax

Manassas

Falls Church

Waldorf

Laurel

Rockville

Oxon Hill

National Harbor

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Seoul to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$688	Average$994	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$694	Average$699	FlexibilityNo cancel fee	On-time71%

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$405+ 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 10/15. 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

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seoul to Reagan-National

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 July 31, 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 July 31, 2025.

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.

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

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

Reviews of airlines servicing Reagan-National

See what other customers who have flown with EVA Air, ANA, and Japan Airlines 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.

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

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

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?

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

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 2 airlines 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 July 31, 2025.