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$412+ Cheap flights from Dulles Intl (IAD) to South Korea

IAD — ICN
Dec 9 — Dec 161
Wed 12/9
Wed 12/16
1 adult, Economy
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Cheap flight deals from Dulles Intl to South Korea

Cheapest flights from Dulles Intl to South Korea

Fri 11/1310:00 am -
1 stop39h 45m
Thu 11/2612:10 am -
1 stop45h 50m
Deal found 11/6$888
Mon 11/1611:35 pm -
Nonstop15h 50m
Fri 12/41:10 pm -
1 stop19h 20m
Deal found 11/7$890
Thu 11/1910:00 am -
1 stop39h 45m
Sat 11/2812:10 am -
2 stops45h 50m
Deal found 11/8$893
Tue 11/2410:00 am -
1 stop39h 45m
Thu 12/1012:10 am -
2 stops45h 50m
Deal found 11/5$894
Mon 11/1610:00 am -
1 stop39h 45m
Thu 12/312:10 am -
1 stop45h 50m
Deal found 11/7$895
Sun 12/611:35 pm -
Nonstop15h 50m
Sun 12/139:05 pm -
Nonstop13h 30m
Deal found 11/5$899
Wed 11/2511:35 pm -
Nonstop15h 50m
Fri 12/41:10 pm -
1 stop19h 20m
Deal found 11/5$900
Tue 11/2410:00 am -
1 stop39h 45m
Sat 12/1212:10 am -
2 stops45h 50m
Deal found 11/5$901
Tue 11/1710:00 am -
1 stop39h 45m
Fri 11/2712:10 am -
2 stops45h 50m
Deal found 11/8$904
Mon 11/2311:55 pm -
1 stop29h 20m
Fri 12/41:50 pm -
2 stops29h 45m
Deal found 11/4$1,368
Mon 11/911:55 pm -
1 stop29h 20m
Sat 11/211:50 pm -
2 stops29h 50m
Deal found 11/7$1,388
Sun 11/87:45 pm -
2 stops35h 00m
Thu 11/1212:00 pm -
2 stops43h 28m
Deal found 11/4$1,393

Find flight deals from Dulles Intl to South Korea

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$891
(Justfly.com)

One-way from

$412
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,176

Good round-trip deal

$948 or less

Good one-way deal

$349 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
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From Washington, D.C. Dulles Intl to South Korea
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One-way flight from Washington, D.C. Dulles Intl to South Korea
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Highest demand for flights based on searches. 12% potential increase in price ($201 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to South Korea.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to South Korea.
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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.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Wed 1/27

6:00 am-12:40 am

2 stops28h 40m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$581

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Sun 2/28

6:55 pm-12:40 am

2 stops39h 45m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$591

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Mon 2/1

6:00 am-12:45 pm

2 stops40h 45m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$619

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Tue 2/16

6:00 am-12:45 pm

2 stops40h 45m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$619

Washington, D.C.Seoul

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

IADGMP

Washington, D.C. Dulles Intl

Mon 11/16

11:55 pm-7:15 pm

1 stop29h 20m

Seoul Gimpo Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$623

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Mon 11/16

6:00 am-6:35 pm

2 stops46h 35m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$625

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Tue 11/24

6:20 pm-5:40 am

1 stop21h 20m

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

Sat 3/20

5:54 pm-12:40 am

2 stops41h 46m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$685

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Thu 4/1

5:54 pm-7:05 pm

2 stops36h 11m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$686

Washington, D.C.Incheon

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

IADICN

Washington, D.C. Dulles Intl

Thu 1/28

1:30 pm-8:55 am

1 stop29h 25m

Incheon Intl

Wed 12/31

12:00 am-10:00 am

Nonstop0h 00m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 46 resultsSorted by cheapest first
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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.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to South Korea

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 $1,184). Flying from Washington, D.C. Dulles Intl Airport to South Korea in December is currently the most expensive (average of $1,668). 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 Wednesday (3 on average). You will have fewer flight options on Monday, 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 21% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 97 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 11% 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 35 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 EVA Air,Korean Air, andAIR PREMIA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
EVA Air
8.5
Very good
1,552 reviews
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Korean Air
8.4
Very good
1,218 reviews
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
AIR PREMIA
8.0
Very good
115 reviews
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Delta
7.8
Good
8,700 reviews
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!
Turkish Airlines
7.4
Good
4,467 reviews
EVA Air
8.5
Very good
1,552 reviews

Entertainment

8.0

Comfort

8.3

Overall

8.5

Crew

8.7

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2026

SEA - TPE

The food on EVA suits my Asian palate and is always of a high standard. The flight was comfortable and the crew very helpful. I lost an ear bud while I slept and they helped me find it at the end of the flight. I was very grateful!

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 AIR PREMIA, Turkish Airlines, or Cathay Pacific 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 $450. 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 (75%), Delta (33%), Korean Air (33%).

  • 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 $290. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $792 on average, our data indicates $2,445 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 $1,184). Flying from Washington, D.C. Dulles Intl Airport to South Korea in December is currently the most expensive (average of $1,668). 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 8 airlines flying from Dulles Intl to South Korea

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$588Average$1,776FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$687Average$1,566FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$801Average$1,256FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$816Average$1,592FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$929Average$1,103FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$959Average$1,087FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$1,079Average$1,378FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,313Average$1,731FlexibilityNo cancel feeOn-time81%

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