In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

If weather is an important factor for your trip to South Korea, 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 28.4 F).

What are the most popular routes from Washington, D.C. Reagan-National Airport to South Korea?

Most travelers choose Washington, D.C. Reagan-National - Incheon Intl, Washington, D.C. Reagan-National - Seoul Gimpo Intl or Washington, D.C. Reagan-National - Busan Gimhae when deciding on the best route from Washington, D.C. Reagan-National Airport to South Korea.

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

American Airlines, Air Canada and Korean Air are the most popular airlines when flying from Washington, D.C. Reagan-National Airport to South Korea.

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

Find a great deal and save up to 110% by booking at least 19 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. Reagan-National Airport to South Korea within the next two weeks, with the cheapest ticket starting at $894.

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

Our data shows that January tends to be the cheapest month to fly to South Korea from Washington, D.C. Reagan-National Airport. Users have commonly found prices around $1,333 for the month, but tickets can be as low as $863. Due to multiple factors, prepare for potentially higher prices in June.

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

Yes. In addition to deals on Reagan-National to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to South Korea.

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

Yes. Cheapflights offers flight deals from Reagan-National to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$466+ Flights from Washington, D.C. Reagan-National Airport to South Korea

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Cheap flight deals from Reagan-National to South Korea

Round-trip from	$963 (eDestinos)
One-way from	$466 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,798

From Washington, D.C. Reagan-National to South Korea

Search Deals

One-way flight from Washington, D.C. Reagan-National to South Korea

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($281 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Reagan-National to South Korea

Cheapest flights from Reagan-National to South Korea
Explore the most affordable flight options available from Reagan-National to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

Tue 9/166:59 pmDCA - ICN

2 stops28h 41mMultiple Airlines

Tue 9/238:05 pmICN - DCA

2 stops34h 54mMultiple Airlines

Deal found 8/17

$963

Wed 12/314:10 pmDCA - ICN

2 stops35h 00mAir Canada

Wed 1/146:55 pmICN - DCA

2 stops29h 31mAir Canada

Deal found 8/16

$973

Sun 12/79:20 pmDCA - ICN

2 stops29h 50mAir Canada

Tue 12/238:10 pmICN - DCA

2 stops28h 16mAir Canada

Deal found 8/18

$986

Wed 12/106:00 amDCA - ICN

2 stops45h 10mAir Canada

Sat 12/136:55 pmICN - DCA

2 stops29h 31mAir Canada

Deal found 8/17

$1,011

Mon 9/151:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Mon 9/226:20 pmICN - DCA

1 stop36h 39mMultiple Airlines

Deal found 8/18

$1,015

Tue 12/99:20 pmDCA - ICN

2 stops29h 50mAir Canada

Fri 12/266:55 pmICN - DCA

2 stops34h 36mAir Canada

Deal found 8/17

$1,017

Mon 10/207:00 amDCA - ICN

2 stops24h 30mMultiple Airlines

Fri 10/311:20 pmICN - DCA

1 stop19h 40mMultiple Airlines

Deal found 8/17

$1,039

Mon 11/35:00 pmDCA - ICN

2 stops29h 45mCathay Pacific

Mon 11/171:50 pmICN - DCA

2 stops43h 04mCathay Pacific

Deal found 8/17

$1,046

Wed 10/2211:10 amDCA - ICN

2 stops37h 20mChina Eastern

Tue 10/288:55 amICN - DCA

2 stops22h 05mChina Eastern

Deal found 8/18

$1,050

Mon 9/81:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Wed 9/2412:45 pmICN - DCA

1 stop21h 14mMultiple Airlines

Deal found 8/18

$1,051

Thu 9/188:59 amDCA - PUS

2 stops45h 01mChina Airlines

Thu 9/2512:15 pmPUS - DCA

2 stops45h 44mChina Airlines

Deal found 8/17

$1,321

Wed 10/156:59 amDCA - GMP

2 stops26h 21mMultiple Airlines

Sun 10/267:50 amGMP - DCA

2 stops37h 00mMultiple Airlines

Deal found 8/17

$1,393

Best flights from Reagan-National to South Korea
Discover carefully curated flight deals from Reagan-National to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2025.

Mon 11/311:55 amDCA - ICN

2 stops34h 50mCathay Pacific

Mon 11/1710:05 amICN - DCA

2 stops46h 49mCathay Pacific

Deal found 8/16

$1,046

Tue 10/2112:31 pmDCA - ICN

2 stops36h 34mMultiple Airlines

Tue 10/2810:05 amICN - DCA

2 stops27h 54mMultiple Airlines

Deal found 8/16

$1,075

Thu 9/188:59 amDCA - PUS

2 stops45h 01mChina Airlines

Thu 9/2512:15 pmPUS - DCA

2 stops45h 44mChina Airlines

Deal found 8/17

$1,321

Tue 10/283:30 pmDCA - GMP

2 stops30h 50mANA

Wed 11/267:50 pmGMP - DCA

2 stops32h 20mANA

Deal found 8/16

$1,621

Mon 9/85:30 pmDCA - PUS

2 stops37h 20mPhilippine Airlines

Mon 10/69:00 pmPUS - DCA

2 stops36h 59mPhilippine Airlines

Deal found 8/16

$1,726

Thu 9/118:59 amDCA - TAE

2 stops22h 36mKorean Air

Sun 10/57:05 amTAE - DCA

2 stops29h 37mKorean Air

Deal found 8/16

$1,840

Wed 9/109:40 amDCA - TAE

2 stops21h 55mDelta

Sat 10/47:05 amTAE - DCA

2 stops23h 28mDelta

Deal found 8/16

$1,985

Mon 10/2012:31 pmDCA - ICN

2 stops41h 34mMultiple Airlines

Tue 10/2810:05 amICN - DCA

2 stops27h 54mMultiple Airlines

Deal found 8/17

$1,075

Wed 10/2912:31 pmDCA - ICN

2 stops41h 04mCathay Pacific

Tue 11/410:05 amICN - DCA

2 stops26h 55mCathay Pacific

Deal found 8/16

$1,094

Mon 11/176:35 pmDCA - ICN

2 stops28h 10mMultiple Airlines

Thu 12/410:05 amICN - DCA

2 stops27h 02mMultiple Airlines

Deal found 8/17

$1,075

Tue 10/2112:31 pmDCA - ICN

2 stops36h 34mCathay Pacific

Wed 10/2910:05 amICN - DCA

2 stops47h 11mCathay Pacific

Deal found 8/16

$1,094

Tue 9/27:31 pmDCA - ICN

2 stops28h 09mMultiple Airlines

Wed 9/108:05 pmICN - DCA

2 stops41h 50mMultiple Airlines

Deal found 8/16

$1,090

Last-minute flights from Reagan-National to South Korea
Discover last-minute flight deals from Reagan-National to South Korea. Data last updated August 18, 2025 and is based on user searches.

Mon 9/17:31 pmDCA - ICN

2 stops29h 34mCathay Pacific

Mon 9/810:10 amICN - DCA

2 stops27h 54mCathay Pacific

Deal found 8/17

$1,060

Fri 9/51:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Wed 10/1512:45 pmICN - DCA

1 stop21h 29mMultiple Airlines

Deal found 8/17

$1,062

Mon 9/81:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Wed 9/2412:45 pmICN - DCA

1 stop21h 14mMultiple Airlines

Deal found 8/18

$1,051

Mon 9/85:20 pmDCA - ICN

2 stops31h 45mCathay Pacific

Sat 9/1310:10 amICN - DCA

2 stops27h 50mCathay Pacific

Deal found 8/17

$1,087

Wed 9/109:59 amDCA - ICN

2 stops37h 41mCathay Pacific

Sun 9/283:10 pmICN - DCA

2 stops41h 48mCathay Pacific

Deal found 8/15

$1,076

Thu 9/116:00 pmDCA - ICN

2 stops32h 45mMultiple Airlines

Tue 10/712:45 pmICN - DCA

1 stop21h 29mMultiple Airlines

Deal found 8/16

$1,061

Mon 9/151:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Mon 9/226:20 pmICN - DCA

1 stop36h 39mMultiple Airlines

Deal found 8/18

$1,015

Tue 9/166:59 pmDCA - ICN

2 stops28h 41mMultiple Airlines

Tue 9/238:05 pmICN - DCA

2 stops34h 54mMultiple Airlines

Deal found 8/17

$963

Tue 9/165:30 pmDCA - ICN

2 stops30h 10mCathay Pacific

Tue 10/1410:10 amICN - DCA

2 stops27h 49mCathay Pacific

Deal found 8/17

$1,046

Thu 9/186:30 amDCA - ICN

2 stops41h 10mCathay Pacific

Tue 9/2310:10 amICN - DCA

2 stops27h 48mCathay Pacific

Deal found 8/17

$1,059

Thu 9/188:59 amDCA - PUS

2 stops45h 01mChina Airlines

Thu 9/2512:15 pmPUS - DCA

2 stops45h 44mChina Airlines

Deal found 8/17

$1,321

Sat 9/206:00 pmDCA - ICN

2 stops37h 30mMultiple Airlines

Sat 10/1112:45 pmICN - DCA

1 stop21h 29mMultiple Airlines

Deal found 8/17

$1,065

One-way flights from Reagan-National to South Korea
Search for one-way flight options from Reagan-National to South Korea. Find affordable one-way fares based on user searches. Data last updated August 18, 2025.

Fri 9/121:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Deal found 8/15

$466

Tue 9/306:00 pmDCA - ICN

3 stops37h 50mMultiple Airlines

Deal found 8/16

$475

Tue 9/96:00 pmDCA - ICN

2 stops37h 30mMultiple Airlines

Deal found 8/18

$483

Tue 9/166:00 pmDCA - ICN

2 stops37h 30mMultiple Airlines

Deal found 8/17

$487

Sun 9/76:00 pmDCA - ICN

2 stops32h 45mMultiple Airlines

Deal found 8/18

$491

Wed 9/177:00 amDCA - ICN

2 stops32h 50mMultiple Airlines

Deal found 8/18

$498

Mon 9/81:00 pmDCA - ICN

2 stops26h 50mMultiple Airlines

Deal found 8/17

$500

Sat 9/136:00 pmDCA - ICN

2 stops37h 30mMultiple Airlines

Deal found 8/17

$506

Mon 9/158:25 amDCA - PUS

3 stops33h 35mMultiple Airlines

Deal found 8/16

$580

Sun 9/76:00 pmDCA - GMP

3 stops54h 05mMultiple Airlines

Deal found 8/18

$615

Mon 9/151:00 pmDCA - GMP

3 stops35h 05mMultiple Airlines

Deal found 8/16

$616

Mon 8/255:06 pmDCA - GMP

3 stops58h 49mMultiple Airlines

Deal found 8/18

$618

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to South Korea 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

Mon 11/3

11:55 am-12:45 pm

2 stops34h 50m

Incheon Intl

Mon 11/17

10:05 am-6:54 pm

2 stops46h 49m

$1,046

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/21

12:31 pm-2:05 pm

2 stops36h 34m

Incheon Intl

Tue 10/28

10:05 am-12:59 am

2 stops27h 54m

$1,075

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/20

12:31 pm-7:05 pm

2 stops41h 34m

Incheon Intl

Tue 10/28

10:05 am-12:59 am

2 stops27h 54m

$1,075

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 11/17

6:35 pm-12:45 pm

2 stops28h 10m

Incheon Intl

Thu 12/4

10:05 am-11:07 pm

2 stops27h 02m

$1,075

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/2

7:31 pm-12:40 pm

2 stops28h 09m

Incheon Intl

Wed 9/10

8:05 pm-12:55 am

2 stops41h 50m

$1,090

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/29

12:31 pm-6:35 pm

2 stops41h 04m

Incheon Intl

Tue 11/4

10:05 am-11:00 pm

2 stops26h 55m

$1,094

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/21

12:31 pm-2:05 pm

2 stops36h 34m

Incheon Intl

Wed 10/29

10:05 am-8:16 pm

2 stops47h 11m

$1,094

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 10/30

12:31 pm-9:15 pm

2 stops43h 44m

Incheon Intl

Thu 11/6

10:05 am-11:00 pm

2 stops26h 55m

$1,094

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 9/18

8:59 am-7:00 pm

2 stops45h 01m

Busan Gimhae

Thu 9/25

12:15 pm-8:59 pm

2 stops45h 44m

$1,321

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Wed 10/15

6:59 am-10:20 pm

2 stops26h 21m

Seoul Gimpo Intl

Sun 10/26

7:50 am-7:50 am

2 stops37h 00m

$1,393

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 49 results

...

Best time to book a flight from Reagan-National to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $992). Flying from Washington, D.C. Reagan-National Airport to South Korea 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 KR?

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 South Korea as you normally would.

Reviews of airlines servicing South Korea

Read reviews from past customers who have flown Korean Air, American Airlines, and Air Canada from Washington, D.C. Reagan-National Airport to South Korea. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,131 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,131 reviews

Korean Air

8.4

Very good

1,131 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

American Airlines

7.2

Good

10,000 reviews

Korean Air

8.4

Very good

1,131 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Air Canada

7.1

Good

9,992 reviews

Korean Air

8.4

Very good

1,131 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to South Korea?
For as low as $1,621, Cathay Pacific can have you in South Korea from Washington, D.C. Reagan-National Airport in 30h 50m. The distance from Washington, D.C. Reagan-National Airport to South Korea is about 6939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Washington, D.C. Reagan-National Airport to South Korea?
Most travelers choose Washington, D.C. Reagan-National - Incheon Intl, Washington, D.C. Reagan-National - Seoul Gimpo Intl or Washington, D.C. Reagan-National - Busan Gimhae when deciding on the best route from Washington, D.C. Reagan-National Airport to South Korea.
Can I find deals for flights from Reagan-National to South Korea that include hotel bookings?
Yes. In addition to deals on Reagan-National to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to South Korea?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to South Korea.
Can I find deals for business class flights from Reagan-National to South Korea?
Yes. Cheapflights offers flight deals from Reagan-National to South Korea 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 South Korea?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to South Korea (average of $992). Flying from Washington, D.C. Reagan-National Airport to South Korea 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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Alternative routes for Reagan-National to South Korea

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Complete your trip

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Top 3 airlines flying from Reagan-National to South Korea

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$864	Average$1,232	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$877	Average$1,037	FlexibilityNo cancel fee	On-time71%
Korean Air	Cheapest$1,527	Average$1,799	FlexibilityNo cancel fee	On-time81%

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$466+ Cheap flights from Reagan-National (DCA) to South Korea

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Reagan-National to South Korea

Keep the following information in mind while searching for Reagan-National to South Korea flight deals. Data was last updated August 18, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to South Korea

Cheapest flights from Reagan-National to South KoreaExplore the most affordable flight options available from Reagan-National to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

Explore the most affordable flight options available from Reagan-National to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

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

Find hourly flight availability from Reagan-National to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

Reviews of airlines servicing South Korea

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to South Korea. 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 South Korea?

What are the most popular routes from Washington, D.C. Reagan-National Airport to South Korea?

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

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

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

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

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 South Korea

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

Top 3 airlines flying from Reagan-National to South Korea

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Cheapest flights from Reagan-National to South Korea
Explore the most affordable flight options available from Reagan-National to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.