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

One-way options have recently been found by users for as low as $605 on Air Canada. Other airlines that offer cheap prices include Cathay Pacific from $675 and China Airlines from $676 one-way.

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 128% 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 $1,165.

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 $1,361 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.

$1,569+ 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	$1,278 (oojo)
One-way from	$593 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,850

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. 20% potential increase in price ($344 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).

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Average for round-trip flights in June 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 junio 12, 2025.

mié. 9/178:59 amDCA - PUS

2 stops45h 01mChina Airlines

mar. 10/1412:15 pmPUS - DCA

2 stops45h 59mChina Airlines

Deal found 6/10

$1,278

lun. 9/16:30 amDCA - ICN

2 stops42h 35mCathay Pacific

lun. 9/2210:10 amICN - DCA

2 stops34h 48mCathay Pacific

Deal found 6/10

$1,295

jue. 7/1012:55 pmDCA - ICN

3 stops38h 10mMultiple Airlines

mar. 7/229:05 pmICN - DCA

2 stops27h 58mMultiple Airlines

Deal found 6/10

$1,312

mié. 10/14:35 pmDCA - ICN

1 stop34h 40mAir Canada

jue. 10/165:45 pmICN - DCA

2 stops29h 35mAir Canada

Deal found 6/12

$1,314

sáb. 9/205:06 pmDCA - ICN

1 stop36h 29mAlaska Airlines

jue. 10/98:35 pmICN - DCA

2 stops61h 39mAlaska Airlines

Deal found 6/11

$1,362

lun. 9/2210:45 pmDCA - GMP

2 stops23h 00mJapan Airlines

mié. 10/157:55 amGMP - DCA

2 stops25h 49mJapan Airlines

Deal found 6/12

$1,462

lun. 8/186:30 amDCA - ICN

2 stops34h 55mLOT

mié. 9/38:15 amICN - DCA

2 stops51h 41mLOT

Deal found 6/11

$1,486

dom. 8/248:20 amDCA - ICN

2 stops32h 40mPhilippine Airlines

mié. 9/108:30 pmICN - DCA

2 stops37h 29mPhilippine Airlines

Deal found 6/10

$1,549

vie. 8/1510:09 pmDCA - GMP

2 stops23h 36mMultiple Airlines

vie. 8/297:55 amGMP - DCA

2 stops19h 37mMultiple Airlines

Deal found 6/11

$1,562

mié. 8/273:30 pmDCA - GMP

2 stops30h 35mANA

mar. 9/27:55 pmGMP - DCA

2 stops31h 21mANA

Deal found 6/12

$1,621

vie. 7/256:59 amDCA - PUS

2 stops24h 46mMultiple Airlines

vie. 8/18:20 amPUS - DCA

2 stops37h 37mMultiple Airlines

Deal found 6/10

$1,820

sáb. 7/266:00 amDCA - CJJ

2 stops26h 55mMultiple Airlines

sáb. 8/27:25 amCJJ - DCA

3 stops28h 02mMultiple Airlines

Deal found 6/11

$2,138

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 junio 12, 2025.

mié. 9/178:59 amDCA - PUS

2 stops45h 01mChina Airlines

mar. 10/1412:15 pmPUS - DCA

2 stops45h 59mChina Airlines

Deal found 6/10

$1,278

lun. 9/16:30 amDCA - ICN

2 stops42h 35mCathay Pacific

lun. 9/2210:10 amICN - DCA

2 stops34h 48mCathay Pacific

Deal found 6/10

$1,295

jue. 7/1012:55 pmDCA - ICN

3 stops38h 10mMultiple Airlines

mar. 7/229:05 pmICN - DCA

2 stops27h 58mMultiple Airlines

Deal found 6/10

$1,312

lun. 7/76:00 amDCA - ICN

1 stop21h 15mAir Canada

mar. 7/295:45 pmICN - DCA

2 stops41h 42mAir Canada

Deal found 6/9

$1,318

lun. 8/186:30 amDCA - ICN

2 stops34h 55mLOT

mié. 9/38:15 amICN - DCA

2 stops51h 41mLOT

Deal found 6/11

$1,486

lun. 8/187:20 pmDCA - GMP

2 stops26h 25mJapan Airlines

mar. 9/27:55 amGMP - DCA

2 stops28h 23mJapan Airlines

Deal found 6/11

$1,502

dom. 8/248:20 amDCA - ICN

2 stops32h 40mPhilippine Airlines

mié. 9/108:30 pmICN - DCA

2 stops37h 29mPhilippine Airlines

Deal found 6/10

$1,549

vie. 8/156:58 pmDCA - ICN

3 stops35h 02mAlaska Airlines

vie. 8/229:25 pmICN - DCA

2 stops31h 41mAlaska Airlines

Deal found 6/10

$1,607

sáb. 8/210:08 pmDCA - ICN

2 stops28h 22mAmerican Airlines

dom. 8/175:25 pmICN - DCA

1 stop20h 40mAmerican Airlines

Deal found 6/12

$1,619

mié. 8/273:30 pmDCA - GMP

2 stops30h 35mANA

mar. 9/27:55 pmGMP - DCA

2 stops31h 21mANA

Deal found 6/11

$1,621

sáb. 7/269:39 amDCA - PUS

2 stops20h 56mKorean Air

sáb. 8/27:00 amPUS - DCA

2 stops19h 44mKorean Air

Deal found 6/11

$2,328

vie. 8/1510:09 pmDCA - GMP

2 stops23h 36mMultiple Airlines

vie. 8/297:55 amGMP - DCA

2 stops19h 37mMultiple Airlines

Deal found 6/11

$1,562

Last-minute flights from Reagan-National to South Korea
Discover last-minute flight deals from Reagan-National to South Korea. Data last updated junio 12, 2025 and is based on user searches.

mar. 6/176:30 amDCA - ICN

2 stops34h 55mLOT

mar. 7/1511:20 amICN - DCA

2 stops48h 39mLOT

Deal found 6/10

$1,889

mar. 6/176:30 amDCA - ICN

2 stops34h 55mMultiple Airlines

mié. 7/168:15 amICN - DCA

2 stops36h 34mMultiple Airlines

Deal found 6/10

$1,919

mar. 6/176:00 amDCA - GMP

2 stops26h 50mJapan Airlines

jue. 6/1912:05 pmGMP - DCA

2 stops32h 45mJapan Airlines

Deal found 6/12

$2,337

mar. 6/175:00 pmDCA - ICN

2 stops35h 05mQatar Airways

lun. 7/141:20 amICN - DCA

2 stops30h 38mQatar Airways

Deal found 6/12

$2,607

mar. 6/179:39 amDCA - ICN

1 stop17h 46mKorean Air

jue. 7/310:15 amICN - DCA

1 stop19h 18mKorean Air

Deal found 6/11

$3,023

mié. 6/188:00 amDCA - ICN

2 stops57h 00mPhilippine Airlines

dom. 6/298:00 amICN - DCA

2 stops49h 29mPhilippine Airlines

Deal found 6/11

$6,665

jue. 6/195:08 amDCA - ICN

1 stop21h 22mAmerican Airlines

vie. 8/15:25 pmICN - DCA

1 stop20h 24mAmerican Airlines

Deal found 6/11

$2,420

dom. 6/226:00 amDCA - ICN

2 stops41h 40mCathay Pacific

mié. 7/910:10 amICN - DCA

2 stops34h 39mCathay Pacific

Deal found 6/10

$1,690

dom. 6/226:00 amDCA - ICN

2 stops45h 05mAir Canada

mié. 7/95:45 pmICN - DCA

2 stops28h 12mAir Canada

Deal found 6/11

$1,740

dom. 6/229:00 amDCA - GMP

2 stops23h 50mMultiple Airlines

mié. 7/97:55 amGMP - DCA

2 stops19h 38mMultiple Airlines

Deal found 6/12

$2,567

vie. 6/278:20 amDCA - PUS

2 stops46h 30mPhilippine Airlines

dom. 7/69:00 pmPUS - DCA

2 stops36h 29mPhilippine Airlines

Deal found 6/12

$2,292

vie. 6/276:00 amDCA - TAE

2 stops25h 35mKorean Air

dom. 7/67:05 amTAE - DCA

2 stops20h 52mKorean Air

Deal found 6/12

$2,707

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 junio 12, 2025.

dom. 8/248:00 amDCA - ICN

2 stops24h 35mMultiple Airlines

Deal found 6/11

$593

sáb. 8/99:40 amDCA - ICN

1 stop17h 35mAir Canada

Deal found 6/11

$605

vie. 9/56:59 pmDCA - GMP

3 stops56h 06mMultiple Airlines

Deal found 6/11

$637

mié. 8/2010:00 pmDCA - ICN

2 stops27h 05mCathay Pacific

Deal found 6/11

$675

sáb. 8/305:06 pmDCA - ICN

2 stops37h 29mChina Airlines

Deal found 6/11

$676

sáb. 8/96:58 pmDCA - GMP

2 stops58h 12mEVA Air

Deal found 6/11

$812

vie. 9/56:59 pmDCA - ICN

3 stops35h 01mAlaska Airlines

Deal found 6/11

$823

mié. 8/2010:09 pmDCA - GMP

2 stops34h 41mJapan Airlines

Deal found 6/11

$918

mié. 8/207:38 pmDCA - ICN

1 stop19h 22mKorean Air

Deal found 6/11

$1,009

mar. 6/176:58 pmDCA - ICN

2 stops34h 47mEVA Air

Deal found 6/12

$1,068

sáb. 7/268:00 amDCA - TAE

2 stops23h 35mMultiple Airlines

Deal found 6/11

$1,075

lun. 6/167:55 amDCA - ICN

2 stops21h 50mWestJet

Deal found 6/12

$1,079

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

lun. 9/1

6:30 am-2:05 pm

2 stops42h 35m

Incheon Intl

lun. 9/22

10:10 am-7:58 am

2 stops34h 48m

$1,295

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

jue. 7/10

12:55 pm-4:05 pm

3 stops38h 10m

Incheon Intl

mar. 7/22

9:05 pm-12:03 pm

2 stops27h 58m

$1,312

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mié. 10/1

4:35 pm-4:15 pm

1 stop34h 40m

Incheon Intl

jue. 10/16

5:45 pm-10:20 am

2 stops29h 35m

$1,314

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

sáb. 9/20

5:06 pm-6:35 pm

1 stop36h 29m

Incheon Intl

jue. 10/9

8:35 pm-9:14 pm

2 stops61h 39m

$1,362

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

lun. 9/22

10:45 pm-10:45 am

2 stops23h 00m

Seoul Gimpo Intl

mié. 10/15

7:55 am-8:44 pm

2 stops25h 49m

$1,462

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

lun. 8/18

6:30 am-6:25 am

2 stops34h 55m

Incheon Intl

mié. 9/3

8:15 am-10:56 pm

2 stops51h 41m

$1,486

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

dom. 8/24

8:20 am-6:00 am

2 stops32h 40m

Incheon Intl

lun. 9/15

8:30 pm-8:59 pm

2 stops37h 29m

$1,549

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

vie. 8/15

10:09 pm-10:45 am

2 stops23h 36m

Seoul Gimpo Intl

vie. 8/29

7:55 am-2:32 pm

2 stops19h 37m

$1,562

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

mié. 8/27

3:30 pm-11:05 am

2 stops30h 35m

Seoul Gimpo Intl

mar. 9/2

7:55 pm-2:16 pm

2 stops31h 21m

$1,621

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

vie. 7/25

6:59 am-8:45 pm

2 stops24h 46m

Busan Gimhae

vie. 8/1

8:20 am-8:57 am

2 stops37h 37m

$1,820

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 38 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 $1,000). 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.

Rainfall in South Korea by month

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.

Temperature in South Korea by month

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).

Reviews of airlines servicing South Korea

Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington, D.C. to South Korea to help guide your decision. 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

1,202 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

1,202 reviews

EVA Air

8.4

Very good

1,202 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

Korean Air

8.4

Very good

1,088 reviews

EVA Air

8.4

Very good

1,202 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

1,489 reviews

EVA Air

8.4

Very good

1,202 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

738 reviews

EVA Air

8.4

Very good

1,202 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

8.3

Very good

882 reviews

EVA Air

8.4

Very good

1,202 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 to fly from Washington, D.C. Reagan-National Airport to South Korea one-way?
One-way options have recently been found by users for as low as $605 on Air Canada. Other airlines that offer cheap prices include Cathay Pacific from $675 and China Airlines from $676 one-way.
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 $1,000). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Reagan-National to South Korea

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Complete your trip

South Korea car rentals

Jeju-do car rentals

Incheon Intl Airport car rentals

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Seoul car rentals

Top 3 airlines flying from Reagan-National to South Korea

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$867	Average$1,291	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$877	Average$1,077	FlexibilityNo cancel fee	On-time71%
Korean Air	Cheapest$1,527	Average$1,832	FlexibilityNo cancel fee	On-time81%

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$593+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to South Korea with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 junio 12, 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 junio 12, 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 junio 12, 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 junio 12, 2025.

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals by month.

Temperature in South Korea by month

Plan your trip to South Korea by taking into account the average temperature totals by month.

Reviews of airlines servicing South Korea

Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington, D.C. to South Korea to help guide your decision. 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 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.

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

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?

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Alternative routes for Reagan-National to South Korea

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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 junio 12, 2025.