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 Air Canada. Our recent data shows that you can find tickets from as low as $1,093 on this airline. Additional options worth looking into are Hawaiian Airlines and ANA, starting at $1,110 and $1,621 round-trip. Air Canada is 23% 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 Hawaiian Airlines, with whom users have recently found tickets for as low as $612. However, be on the lookout for offers from Air Canada 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.

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

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

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 are the most popular airlines that fly from Washington, D.C. Reagan-National Airport to Seoul?

Consider American Airlines, Air Canada or Korean Air when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Reagan-National Airport to Seoul.

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

Flights from Washington, D.C. Reagan-National Airport to Seoul are found to be more expensive on Wednesday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seoul.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Seoul?

Users have found that booking a flight from Washington, D.C. Reagan-National Airport to Seoul at least 19 days early can save you up to 115% on average compared to booking a flight this week. If booking 19 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Reagan-National Airport to Seoul for as little as $912 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,352 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Seoul. Flights to Seoul from Washington, D.C. Reagan-National Airport in January are about $1,338 on average during January, but can be found for as low as $863.

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.

$509+ 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 $1,370 and $1,529 in September. The cheapest round-trip price found within the last 3 days was $1,093 on Air Canada (Sep 8-Dec 4).

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Cheap flight deals from Reagan-National to Seoul

Round-trip from	$1,093 (Mytrip)
One-way from	$509 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$1,561

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

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

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Highest demand for flights based on searches. 8% potential increase in price ($130 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($81 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 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 juillet 30, 2025.

lun. 9/84:35 pmDCA - ICN

3 stops34h 30mAir Canada

jeu. 12/46:55 pmICN - DCA

2 stops29h 31mAir Canada

Deal found 7/29

$1,093

jeu. 9/116:00 amDCA - ICN

3 stops33h 30mMultiple Airlines

jeu. 9/187:05 pmICN - DCA

3 stops35h 59mMultiple Airlines

Deal found 7/29

$1,095

sam. 11/88:00 amDCA - ICN

1 stop20h 35mHawaiian Airlines

dim. 11/168:35 pmICN - DCA

1 stop39h 24mHawaiian Airlines

Deal found 7/28

$1,105

sam. 10/48:00 amDCA - ICN

1 stop21h 35mAlaska Airlines

lun. 10/208:35 pmICN - DCA

1 stop38h 24mAlaska Airlines

Deal found 7/28

$1,110

mar. 9/96:59 amDCA - GMP

2 stops26h 26mMultiple Airlines

mar. 9/162:00 pmGMP - DCA

3 stops31h 59mMultiple Airlines

Deal found 7/29

$1,415

mar. 9/23:30 pmDCA - GMP

2 stops30h 35mANA

mar. 10/147:55 pmGMP - DCA

2 stops31h 21mANA

Deal found 7/29

$1,621

lun. 9/810:45 pmDCA - GMP

2 stops23h 00mJapan Airlines

sam. 9/137:20 pmGMP - DCA

2 stops40h 47mJapan Airlines

Deal found 7/30

$1,751

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 juillet 30, 2025.

lun. 9/84:35 pmDCA - ICN

3 stops34h 30mAir Canada

jeu. 12/46:55 pmICN - DCA

2 stops29h 31mAir Canada

Deal found 7/29

$1,093

jeu. 9/116:00 amDCA - ICN

3 stops33h 30mMultiple Airlines

jeu. 9/187:05 pmICN - DCA

3 stops35h 59mMultiple Airlines

Deal found 7/29

$1,095

sam. 10/48:00 amDCA - ICN

1 stop21h 35mAlaska Airlines

lun. 10/208:35 pmICN - DCA

1 stop38h 24mAlaska Airlines

Deal found 7/28

$1,110

mer. 10/155:03 pmDCA - ICN

1 stop36h 32mHawaiian Airlines

ven. 11/78:35 pmICN - DCA

1 stop34h 18mHawaiian Airlines

Deal found 7/29

$1,178

mar. 9/23:30 pmDCA - GMP

2 stops30h 35mANA

mar. 10/147:55 pmGMP - DCA

2 stops31h 21mANA

Deal found 7/29

$1,621

lun. 9/810:45 pmDCA - GMP

2 stops23h 00mJapan Airlines

sam. 9/137:20 pmGMP - DCA

2 stops40h 47mJapan Airlines

Deal found 7/30

$1,751

ven. 1/99:20 pmDCA - GMP

2 stops35h 10mMultiple Airlines

sam. 1/317:45 amGMP - DCA

2 stops26h 55mMultiple Airlines

Deal found 7/28

$1,260

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

mer. 7/306:59 amDCA - GMP

2 stops26h 21mMultiple Airlines

mer. 8/137:55 amGMP - DCA

2 stops28h 23mMultiple Airlines

Deal found 7/29

$1,532

lun. 8/46:00 amDCA - GMP

2 stops26h 50mJapan Airlines

lun. 8/1812:05 pmGMP - DCA

2 stops41h 06mJapan Airlines

Deal found 7/30

$1,937

mar. 8/51:00 pmDCA - ICN

2 stops37h 45mMultiple Airlines

mar. 9/1612:45 pmICN - DCA

1 stop21h 14mMultiple Airlines

Deal found 7/29

$1,193

mar. 8/511:00 amDCA - ICN

1 stop17h 30mAir Canada

mar. 9/167:05 pmICN - DCA

1 stop26h 54mAir Canada

Deal found 7/29

$1,213

mar. 8/56:00 amDCA - ICN

2 stops26h 10mCathay Pacific

mar. 9/1610:10 amICN - DCA

2 stops37h 18mCathay Pacific

Deal found 7/29

$1,268

mar. 8/57:39 pmDCA - ICN

1 stop19h 21mDelta

mer. 8/202:30 pmICN - DCA

2 stops22h 16mDelta

Deal found 7/29

$1,683

mar. 8/57:00 amDCA - ICN

1 stop19h 00mUnited Airlines

mar. 8/194:50 pmICN - DCA

1 stop17h 47mUnited Airlines

Deal found 7/29

$2,276

mar. 8/58:59 amDCA - GMP

2 stops23h 51mMultiple Airlines

ven. 8/87:55 amGMP - DCA

2 stops21h 16mMultiple Airlines

Deal found 7/29

$2,293

mer. 8/612:29 pmDCA - ICN

2 stops41h 16mWestJet

dim. 8/178:45 pmICN - DCA

2 stops38h 16mWestJet

Deal found 7/29

$2,352

jeu. 8/77:20 pmDCA - ICN

2 stops27h 00mFinnair

dim. 8/179:50 pmICN - DCA

2 stops38h 28mFinnair

Deal found 7/29

$1,938

ven. 8/86:59 amDCA - ICN

1 stop18h 11mKorean Air

ven. 8/224:25 pmICN - DCA

1 stop18h 23mKorean Air

Deal found 7/28

$1,772

sam. 8/97:00 pmDCA - ICN

2 stops35h 20mPhilippine Airlines

sam. 8/168:00 amICN - DCA

2 stops45h 11mPhilippine Airlines

Deal found 7/27

$1,959

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 juillet 30, 2025.

sam. 9/68:00 amDCA - ICN

2 stops24h 35mMultiple Airlines

Deal found 7/28

$509

mar. 10/284:10 pmDCA - ICN

2 stops35h 00mAir Canada

Deal found 7/28

$551

lun. 8/258:59 amDCA - GMP

3 stops58h 31mMultiple Airlines

Deal found 7/29

$557

mar. 9/305:06 pmDCA - ICN

1 stop36h 29mHawaiian Airlines

Deal found 7/28

$600

lun. 8/255:06 pmDCA - ICN

2 stops37h 29mChina Airlines

Deal found 7/29

$637

dim. 8/37:06 pmDCA - ICN

2 stops29h 59mCathay Pacific

Deal found 7/30

$658

ven. 8/156:58 pmDCA - ICN

3 stops35h 02mAlaska Airlines

Deal found 7/28

$674

mer. 8/276:59 pmDCA - GMP

2 stops28h 51mEVA Air

Deal found 7/28

$713

jeu. 8/283:30 pmDCA - GMP

2 stops30h 35mANA

Deal found 7/29

$997

mar. 8/510:08 pmDCA - GMP

2 stops23h 37mJapan Airlines

Deal found 7/30

$1,009

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

lun. 9/8

4:35 pm-4:05 pm

3 stops34h 30m

Incheon Intl

jeu. 12/4

6:55 pm-10:26 am

2 stops29h 31m

$1,093

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

jeu. 9/11

6:00 am-4:30 am

3 stops33h 30m

Incheon Intl

jeu. 9/18

7:05 pm-6:04 pm

3 stops35h 59m

$1,095

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

sam. 10/4

8:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

lun. 10/20

8:35 pm-9:59 pm

1 stop38h 24m

$1,110

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mer. 10/15

5:03 pm-6:35 pm

1 stop36h 32m

Incheon Intl

ven. 11/7

8:35 pm-4:53 pm

1 stop34h 18m

$1,178

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

ven. 1/9

9:20 pm-10:30 pm

2 stops35h 10m

Seoul Gimpo Intl

sam. 1/31

7:45 am-8:40 pm

2 stops26h 55m

$1,260

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

mar. 9/2

3:30 pm-11:05 am

2 stops30h 35m

Seoul Gimpo Intl

mar. 10/14

7:55 pm-2:16 pm

2 stops31h 21m

$1,621

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

lun. 9/8

10:45 pm-10:45 am

2 stops23h 00m

Seoul Gimpo Intl

sam. 9/13

7:20 pm-11:07 pm

2 stops40h 47m

$1,751

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

sam. 9/6

8:00 am-9:35 pm

2 stops24h 35m

$509

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mar. 10/28

4:10 pm-4:10 pm

2 stops35h 00m

$551

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

lun. 8/25

8:59 am-8:30 am

3 stops58h 31m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 17 results

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 $998). 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?

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.

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 EVA Air, ANA, and Japan Airlines 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.

EVA Air

8.4

Very good

1,222 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

1,222 reviews

EVA Air

8.4

Very good

1,222 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

1,222 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

1,222 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

China Airlines

8.3

Very good

754 reviews

EVA Air

8.4

Very good

1,222 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

Hawaiian Airlines

7.8

Good

2,611 reviews

EVA Air

8.4

Very good

1,222 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 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 $1,093 on this airline. Additional options worth looking into are Hawaiian Airlines and ANA, starting at $1,110 and $1,621 round-trip. Air Canada is 23% 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 Hawaiian Airlines, with whom users have recently found tickets for as low as $612. However, be on the lookout for offers from Air Canada 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 $998). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Reagan-National to Seoul

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$867	Average$1,265	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$877	Average$1,070	FlexibilityNo cancel fee	On-time71%
Korean Air	Cheapest$1,527	Average$1,799	FlexibilityNo cancel fee	On-time81%

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$509+ 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 9/6. 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

Round-trip from

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Find 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 juillet 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 juillet 30, 2025.

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.

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?

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 juillet 30, 2025.

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.

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

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

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?

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 Reagan-National to Seoul

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Reagan-National 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 juillet 30, 2025.