How long is the flight from Washington, D.C. Dulles Intl Airport to South Korea?

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to South Korea in 15h 50m. Fly via EVA Air, Turkish Airlines, or AIR PREMIA to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and South Korea is about 6939 mi. This flight may include one or multiple stops.

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

For one-way options, check prices for AIR PREMIA. According to our data, you can fly for as low as $474. Users have also found prices from $488 and $720 on Turkish Airlines and Delta, respectively.

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. Dulles Intl Airport to South Korea?

The most popular route from Washington, D.C. Dulles Intl Airport to South Korea is Washington, D.C. Dulles Intl - Incheon Intl. You may also consider Washington, D.C. Dulles Intl - Seoul Gimpo Intl or Washington, D.C. Dulles Intl - Busan Gimhae.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to South Korea?

Looking at all options, your cheapest flight can be booked for $386. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $928 on average, our data indicates $2,599 when flying from Washington, D.C. Dulles Intl Airport to South Korea.

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to South Korea?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to South Korea on time: AIR PREMIA (100%), Delta (47%), Korean Air (47%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to South Korea?

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to South Korea are AIR PREMIA, Korean Air and Delta. Something to consider prior to booking your flight.

Can I find deals for flights from Dulles Intl to South Korea that include hotel bookings?

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

How can I find direct flights from Dulles Intl to South Korea?

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

Can I find deals for business class flights from Dulles Intl to South Korea?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$384+ Cheap Flights from Washington, D.C. Dulles Intl Airport to South Korea

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Cheap flight deals from Dulles Intl to South Korea

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to South Korea
Explore the most affordable flight options available from Dulles Intl to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Wed 9/301:20 pm -

Nonstop15h 35m

Mon 10/510:00 am -

Nonstop13h 50m

Deal found 9/15

$948

Fri 9/181:20 pm -

Nonstop15h 35m

Fri 10/210:00 am -

Nonstop13h 50m

Deal found 9/14

$949

Wed 9/301:20 pm -

Nonstop15h 35m

Mon 10/59:25 pm -

2 stops49h 52m

Deal found 9/15

$950

Wed 11/1111:35 pm -

Nonstop15h 50m

Wed 11/187:45 pm -

3 stops29h 51m

Deal found 9/14

$951

Wed 11/1811:35 pm -

Nonstop15h 50m

Wed 11/259:05 pm -

Nonstop13h 30m

Deal found 9/16

$953

Mon 9/141:20 pm -

Nonstop15h 35m

Mon 9/2810:00 am -

Nonstop13h 50m

Deal found 9/13

$955

Fri 10/21:20 pm -

Nonstop15h 35m

Mon 10/1210:00 am -

Nonstop13h 50m

Deal found 9/15

$956

Wed 11/411:35 pm -

Nonstop15h 50m

Mon 11/309:05 pm -

Nonstop13h 30m

Deal found 9/16

$957

Fri 9/181:20 pm -

Nonstop15h 35m

Fri 10/27:15 pm -

2 stops48h 05m

Deal found 9/14

$959

Mon 9/211:20 pm -

Nonstop15h 35m

Mon 10/1210:00 am -

Nonstop13h 50m

Deal found 9/17

$961

Fri 10/231:20 pm -

Nonstop15h 35m

Wed 11/259:05 pm -

Nonstop13h 30m

Deal found 9/17

$962

Mon 9/141:15 am -

1 stop29h 00m

Tue 9/227:15 pm -

1 stop39h 45m

Deal found 9/14

$1,026

Best flights from Dulles Intl to South Korea
Discover carefully curated flight deals from Dulles Intl to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Mon 10/261:15 am -

1 stop29h 00m

Tue 11/107:00 pm -

1 stop39h 55m

Deal found 9/14

$1,074

Wed 12/91:30 pm -

1 stop38h 50m

Tue 12/2212:05 am -

1 stop33h 20m

Deal found 9/13

$1,102

Mon 11/2311:35 pm -

1 stop26h 50m

Thu 11/268:40 pm -

1 stop37h 55m

Deal found 9/17

$1,129

Mon 3/111:35 pm -

Nonstop15h 50m

Wed 3/39:05 pm -

Nonstop13h 30m

Deal found 9/16

$1,163

Wed 11/1111:50 am -

Nonstop15h 50m

Thu 11/1910:15 am -

Nonstop13h 35m

Deal found 9/17

$1,243

Fri 10/307:02 am -

2 stops36h 08m

Fri 11/612:00 pm -

2 stops31h 44m

Deal found 9/15

$1,295

Wed 9/301:15 pm -

1 stop17h 40m

Sun 10/47:55 am -

2 stops45h 22m

Deal found 9/16

$1,536

Tue 11/311:10 am -

1 stop21h 20m

Tue 11/1012:20 pm -

1 stop34h 50m

Deal found 9/17

$1,869

Wed 10/281:15 am -

1 stop27h 25m

Thu 11/56:55 pm -

1 stop40h 00m

Deal found 9/14

$1,080

Sun 11/151:30 pm -

1 stop38h 50m

Thu 11/2612:05 am -

1 stop25h 40m

Deal found 9/14

$1,102

Wed 10/2812:50 pm -

Nonstop15h 50m

Wed 11/410:15 am -

Nonstop13h 35m

Deal found 9/15

$1,244

Sun 12/2711:35 pm -

Nonstop15h 50m

Sun 1/179:05 pm -

Nonstop13h 30m

Deal found 9/17

$1,283

Thu 10/295:33 pm -

2 stops37h 07m

Thu 11/58:40 pm -

2 stops47h 04m

Deal found 9/14

$1,319

Wed 11/187:00 am -

1 stop18h 55m

Wed 11/2510:15 am -

Nonstop13h 35m

Deal found 9/16

$1,248

Mon 3/111:50 am -

Nonstop15h 50m

Sat 3/610:15 am -

Nonstop13h 35m

Deal found 9/15

$1,555

Fri 10/237:05 am -

1 stop20h 35m

Wed 11/2510:15 am -

Nonstop13h 35m

Deal found 9/17

$1,298

Wed 10/2812:35 am -

2 stops29h 35m

Thu 11/51:50 pm -

3 stops34h 00m

Deal found 9/14

$1,439

Mon 11/236:20 pm -

2 stops24h 30m

Thu 11/267:45 am -

2 stops27h 41m

Deal found 9/17

$1,560

Fri 1/18:05 pm -

2 stops34h 40m

Sun 1/244:10 pm -

2 stops37h 45m

Deal found 9/17

$1,456

Mon 9/286:00 am -

2 stops24h 35m

Fri 10/27:00 am -

1 stop17h 05m

Deal found 9/15

$1,583

Mon 1/1111:50 am -

Nonstop15h 50m

Sat 1/2310:15 am -

Nonstop13h 35m

Deal found 9/14

$1,554

Tue 11/247:00 am -

2 stops25h 05m

Sat 12/512:05 pm -

2 stops31h 33m

Deal found 9/17

$1,574

Tue 11/1011:50 am -

Nonstop15h 50m

Tue 2/2310:15 am -

Nonstop13h 35m

Deal found 9/14

$1,595

Thu 10/297:13 pm -

3 stops35h 37m

Thu 11/57:40 am -

3 stops35h 58m

Deal found 9/13

$1,596

Tue 10/67:05 am -

1 stop20h 35m

Thu 10/1510:25 am -

Nonstop13h 40m

Deal found 9/13

$1,598

Thu 10/297:23 am -

2 stops23h 27m

Thu 11/57:40 am -

2 stops20h 29m

Deal found 9/13

$1,721

Tue 12/86:00 am -

2 stops26h 05m

Sun 12/208:15 am -

2 stops35h 55m

Deal found 9/16

$1,634

Fri 10/3012:50 pm -

1 stop33h 00m

Fri 11/64:10 pm -

1 stop31h 40m

Deal found 9/15

$1,804

Sun 11/87:09 pm -

2 stops36h 56m

Wed 11/1812:05 pm -

2 stops31h 33m

Deal found 9/14

$1,722

Mon 9/216:52 am -

2 stops25h 23m

Mon 10/197:15 pm -

2 stops32h 03m

Deal found 9/16

$1,840

Last-minute flights from Dulles Intl to South Korea
Discover last-minute flight deals from Dulles Intl to South Korea. Data last updated September 18, 2026 and is based on user searches.

Wed 9/161:15 am -

1 stop22h 35m

Tue 9/227:15 pm -

1 stop39h 45m

Deal found 9/14

$1,026

Wed 9/161:15 am -

1 stop22h 35m

Sat 9/261:50 pm -

1 stop21h 10m

Deal found 9/14

$1,067

Fri 9/181:20 pm -

Nonstop15h 35m

Fri 10/210:00 am -

Nonstop13h 50m

Deal found 9/14

$949

Fri 9/181:20 pm -

Nonstop15h 35m

Fri 10/27:15 pm -

2 stops48h 05m

Deal found 9/14

$959

Mon 9/211:20 pm -

Nonstop15h 35m

Mon 10/1210:00 am -

Nonstop13h 50m

Deal found 9/16

$961

Mon 9/211:20 pm -

Nonstop15h 35m

Mon 11/169:05 pm -

Nonstop13h 30m

Deal found 9/15

$964

Fri 9/251:20 pm -

Nonstop15h 35m

Fri 10/1610:00 am -

Nonstop13h 50m

Deal found 9/16

$963

Wed 9/301:20 pm -

Nonstop15h 35m

Mon 10/510:00 am -

Nonstop13h 50m

Deal found 9/15

$948

Wed 9/301:20 pm -

Nonstop15h 35m

Mon 10/59:25 pm -

2 stops49h 52m

Deal found 9/15

$950

Wed 9/301:20 pm -

Nonstop15h 35m

Wed 10/77:15 pm -

2 stops24h 05m

Deal found 9/14

$965

Fri 10/21:20 pm -

Nonstop15h 35m

Mon 10/1210:00 am -

Nonstop13h 50m

Deal found 9/15

$956

Fri 10/231:20 pm -

Nonstop15h 35m

Wed 11/259:05 pm -

Nonstop13h 30m

Deal found 9/17

$962

One-way flights from Dulles Intl to South Korea
Search for one-way flight options from Dulles Intl to South Korea. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

Wed 11/2511:35 pm -

Nonstop15h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$384

Wed 9/231:20 pm -

Nonstop15h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$385

Sun 11/111:35 pm -

Nonstop15h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$387

Fri 11/611:35 pm -

Nonstop15h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$393

Fri 9/251:20 pm -

Nonstop15h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/17

$424

Wed 9/301:20 pm -

Nonstop15h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$427

Fri 11/66:07 pm -

3 stops45h 33m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/17

$433

Tue 11/312:31 pm -

2 stops42h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$439

Sun 11/111:35 pm -

2 stops26h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$514

Sun 10/2512:35 am -

1 stop31h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/17

$574

Mon 10/121:15 am -

1 stop29h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/16

$588

Mon 10/191:15 am -

1 stop29h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$590

Find flight deals from Dulles Intl to South Korea

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$948 (Super.com)
One-way from	$384 (Kiwi.com)
Popular in	December
Cheapest in	October
Average price	$1,306
Good round-trip deal	$1,070 or less
Good one-way deal	$485 or less

Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.

Search Deals

From Washington, D.C. Dulles Intl to South Korea

Search Deals

One-way flight from Washington, D.C. Dulles Intl to South Korea

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($113 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($66 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to South Korea.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to South Korea.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Busan

IAD Washington, D.C. Dulles Intl - PUS Busan Gimhae

IADPUS

Washington, D.C. Dulles Intl

Sun 11/1

11:35 pm-3:35 pm

2 stops26h 00m

Busan Gimhae

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$514

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Mon 10/12

1:15 am-6:45 pm

1 stop28h 30m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$613

Washington, D.C.Seoul

IAD Washington, D.C. Dulles Intl - GMP Seoul Gimpo Intl

IADGMP

Washington, D.C. Dulles Intl

Mon 11/23

11:55 pm-7:15 pm

1 stop29h 20m

Seoul Gimpo Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$616

Washington, D.C.Busan

IAD Washington, D.C. Dulles Intl - PUS Busan Gimhae

IADPUS

Washington, D.C. Dulles Intl

Mon 10/26

1:15 am-5:40 pm

1 stop27h 25m

Busan Gimhae

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$627

Washington, D.C.Busan

IAD Washington, D.C. Dulles Intl - PUS Busan Gimhae

IADPUS

Washington, D.C. Dulles Intl

Sat 10/31

12:55 am-5:40 pm

1 stop27h 45m

Busan Gimhae

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$639

Quickest round-trip

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Tue 10/20

1:15 pm-5:40 pm

Nonstop15h 25m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$675

Washington, D.C.Busan

IAD Washington, D.C. Dulles Intl - PUS Busan Gimhae

IADPUS

Washington, D.C. Dulles Intl

Sat 10/24

1:15 am-5:40 pm

1 stop27h 25m

Busan Gimhae

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$675

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Wed 10/14

6:13 am-3:20 pm

1 stop20h 07m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$679

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Wed 1/6

1:30 pm-6:20 pm

1 stop38h 50m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$713

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Thu 12/31

6:00 am-12:40 am

2 stops28h 40m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 58 resultsSorted by cheapest first

...

Best time to book a flight from Dulles Intl to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Dulles Intl with our price prediction graph.

IAD-ICN

IAD-GMP

IAD-CJU

IAD-PUS

IAD-TAE

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. Dulles Intl Airport to South Korea

IAD-KR0

IAD-ICN

IAD-GMP

IAD-CJU

IAD-PUS

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to South Korea?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Korea (average of $1,256). Flying from Washington, D.C. Dulles Intl Airport to South Korea in December is currently the most expensive (average of $2,146). 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 IAD to KR?

When flying from Washington, D.C. Dulles Intl Airport to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to South Korea

The most flights from IAD to KR0 are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Washington, D.C. to South Korea delayed?

About 23% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 99 minutes.

What is the most punctual flight time for Washington, D.C. to South Korea flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to South Korea flights?

Over the last year, AIR PREMIA have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to South Korea?

The best time to book flights from Washington, D.C. Dulles Intl Airport to South Korea is 4 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing South Korea

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to South Korea, such as Korean Air,AIR PREMIA, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,218 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

1,218 reviews

Korean Air

8.4

Very good

1,218 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

AIR PREMIA

8.1

Very good

106 reviews

Korean Air

8.4

Very good

1,218 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

7.8

Good

8,586 reviews

Korean Air

8.4

Very good

1,218 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Turkish Airlines

7.4

Good

4,464 reviews

Korean Air

8.4

Very good

1,218 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

United Airlines

7.4

Good

10,227 reviews

Korean Air

8.4

Very good

1,218 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. Dulles Intl Airport to South Korea?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to South Korea in 15h 50m. Fly via EVA Air, Turkish Airlines, or AIR PREMIA to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and South Korea is about 6939 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to South Korea one-way?
For one-way options, check prices for AIR PREMIA. According to our data, you can fly for as low as $474. Users have also found prices from $488 and $720 on Turkish Airlines and Delta, respectively.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to South Korea?
The most popular route from Washington, D.C. Dulles Intl Airport to South Korea is Washington, D.C. Dulles Intl - Incheon Intl. You may also consider Washington, D.C. Dulles Intl - Seoul Gimpo Intl or Washington, D.C. Dulles Intl - Busan Gimhae.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to South Korea?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to South Korea on time: AIR PREMIA (100%), Delta (47%), Korean Air (47%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to South Korea?
Looking at all options, your cheapest flight can be booked for $386. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $928 on average, our data indicates $2,599 when flying from Washington, D.C. Dulles Intl Airport to South Korea.
Can I find deals for flights from Dulles Intl to South Korea that include hotel bookings?
Yes. In addition to deals on Dulles Intl to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to South Korea?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to South Korea.
Can I find deals for business class flights from Dulles Intl to South Korea?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to South Korea?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Korea (average of $1,256). Flying from Washington, D.C. Dulles Intl Airport to South Korea in December is currently the most expensive (average of $2,146). 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.

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Top 8 airlines flying from Dulles Intl to South Korea

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$392	Average$1,759	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$685	Average$1,378	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$687	Average$1,616	FlexibilityNo cancel fee	On-time69%
AIR PREMIA	Cheapest$808	Average$1,276	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$816	Average$1,592	FlexibilityNo cancel fee	On-time71%
Turkish Airlines	Cheapest$929	Average$1,109	FlexibilityNo cancel fee	On-time77%
EVA Air	Cheapest$959	Average$1,096	FlexibilityNo cancel fee	On-time74%
Korean Air	Cheapest$1,313	Average$1,804	FlexibilityNo cancel fee	On-time81%

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$384+ Cheap flights from Dulles Intl (IAD) to South Korea

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. 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 Dulles Intl to South Korea

Cheapest flights from Dulles Intl to South KoreaExplore the most affordable flight options available from Dulles Intl to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Explore the most affordable flight options available from Dulles Intl to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Best flights from Dulles Intl to South KoreaDiscover carefully curated flight deals from Dulles Intl to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Discover carefully curated flight deals from Dulles Intl to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Last-minute flights from Dulles Intl to South KoreaDiscover last-minute flight deals from Dulles Intl to South Korea. Data last updated September 18, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to South Korea. Data last updated September 18, 2026 and is based on user searches.

One-way flights from Dulles Intl to South KoreaSearch for one-way flight options from Dulles Intl to South Korea. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

Search for one-way flight options from Dulles Intl to South Korea. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.

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Best time to book a flight from Dulles Intl to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Dulles Intl with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to South Korea?

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

Find hourly flight availability from Dulles Intl 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 September 18, 2026.

When flying from Washington, D.C. Dulles Intl Airport to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to South Korea

The most flights from IAD to KR0 are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Washington, D.C. to South Korea delayed?

About 23% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 99 minutes.

What is the most punctual flight time for Washington, D.C. to South Korea flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to South Korea flights?

Over the last year, AIR PREMIA have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to South Korea?

The best time to book flights from Washington, D.C. Dulles Intl Airport to South Korea is 4 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing South Korea

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to South Korea, such as Korean Air,AIR PREMIA, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to South Korea?

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

What are the most popular routes from Washington, D.C. Dulles Intl Airport to South Korea?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to South Korea?

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to South Korea?

Can I find deals for flights from Dulles Intl to South Korea that include hotel bookings?

How can I find direct flights from Dulles Intl to South Korea?

Can I find deals for business class flights from Dulles Intl to South Korea?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to South Korea?

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Alternative routes for Dulles Intl to South Korea

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Complete your trip

Complete your trip to South Korea by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to South Korea by cabin class

Find flights from Dulles Intl to South Korea, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and South Korea flights

Browse other Dulles Intl and South Korea flight options. Last updated on September 18, 2026.

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Top 8 airlines flying from Dulles Intl to South Korea

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Cheapest flights from Dulles Intl to South Korea
Explore the most affordable flight options available from Dulles Intl to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.

Best flights from Dulles Intl to South Korea
Discover carefully curated flight deals from Dulles Intl to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.

Last-minute flights from Dulles Intl to South Korea
Discover last-minute flight deals from Dulles Intl to South Korea. Data last updated September 18, 2026 and is based on user searches.

One-way flights from Dulles Intl to South Korea
Search for one-way flight options from Dulles Intl to South Korea. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.