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$582+ Cheap flights from Dulles Intl (IAD) 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap flight deals from Dulles Intl to South Korea

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 April 29, 2026.

This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 11/410:45 am
ICN
-
IAD
1 stop40h 00m
Turkish Airlines
Deal found 4/27$1,083
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:30 pm
IAD
-
ICN
1 stop29h 35m
Turkish Airlines
Wed 11/1110:45 am
ICN
-
IAD
1 stop39h 00m
Turkish Airlines
Deal found 4/29$1,084
This Booking.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Tue 11/1712:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/26$1,099
This oojo deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Thu 12/1012:10 am
ICN
-
IAD
1 stop33h 05m
Turkish Airlines
Deal found 4/25$1,102
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 11/1812:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/27$1,107
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:30 pm
IAD
-
ICN
1 stop29h 35m
Turkish Airlines
Thu 11/1212:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/28$1,116
This Justfly.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 12/210:45 am
ICN
-
IAD
1 stop39h 00m
Turkish Airlines
Deal found 4/27$1,120
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:30 pm
IAD
-
ICN
1 stop28h 35m
Turkish Airlines
Mon 12/710:45 am
ICN
-
IAD
1 stop39h 00m
Turkish Airlines
Deal found 4/29$1,121
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 11/412:10 am
ICN
-
IAD
1 stop26h 35m
Turkish Airlines
Deal found 4/27$1,124
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:20 pm
IAD
-
ICN
1 stop39h 20m
Turkish Airlines
Wed 5/1310:15 am
ICN
-
IAD
1 stop38h 20m
Turkish Airlines
Deal found 4/28$1,129
This Justfly.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:45 pm
IAD
-
ICN
1 stop30h 55m
Turkish Airlines
Mon 10/2612:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/26$1,130
This oojo deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:15 am
IAD
-
PUS
1 stop27h 45m
EVA Air
Sun 10/256:55 pm
PUS
-
IAD
1 stop40h 00m
EVA Air
Deal found 4/26$1,138

Find flight deals from Dulles Intl to South Korea

Keep the following information in mind while searching for Dulles Intl to South Korea flight deals. Data was last updated April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,084
(FlightHub)

One-way from

$582
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,456

Good round-trip deal

$1,112 or less

Good one-way deal

$559 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. 4% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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

 
Customize your flight search to find flights from Dulles Intl to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
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.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 10/13

6:24 am-9:15 pm

2 stops25h 51m

Seoul Gimpo Intl

Wed 11/18

12:05 pm-5:00 am

2 stops30h 55m

$1,656

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 5/11

5:59 pm-12:25 am

2 stops41h 26m

Incheon Intl

Sun 5/31

1:55 am-4:48 am

2 stops39h 53m

$1,697

Washington, D.C.Busan

IAD - PUS

IADPUS

Washington, D.C. Dulles Intl

Mon 9/7

5:44 pm-11:30 am

2 stops28h 46m

Busan Gimhae

Fri 9/11

6:55 pm-5:40 am

2 stops47h 45m

$1,711

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 6/9

9:45 pm-5:40 pm

1 stop30h 55m

Incheon Intl

Tue 6/16

11:20 pm-11:35 am

1 stop25h 15m

$1,729

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 5/13

5:59 pm-2:05 pm

2 stops31h 06m

Incheon Intl

Sat 6/20

1:55 am-4:58 am

2 stops40h 03m

$1,747

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 7/19

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Wed 7/22

10:00 am-10:50 am

Nonstop13h 50m

$1,795

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 5/24

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Wed 6/17

10:00 am-10:50 am

Nonstop13h 50m

$1,804

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 7/6

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Mon 7/20

10:00 am-10:50 am

Nonstop13h 50m

$1,826

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 8/18

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

Mon 8/31

7:55 pm-10:05 am

1 stop27h 10m

$1,873

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 9/16

7:00 am-10:40 am

2 stops38h 40m

Seoul Gimpo Intl

Sun 9/20

7:15 pm-5:40 am

2 stops47h 25m

$1,902

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 60 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
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

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 52 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.

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 $197). Flying from Washington, D.C. Dulles Intl Airport to South Korea in November is currently the most expensive (average of $902). 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?

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 April 29, 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

Explore weekly flight availability from Dulles Intl to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 29, 2026.

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 25% of weekly flights between Washington, D.C. and South Korea have experienced delays in the past year, with the average delay time being 103 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?

Saturday tends to have the lowest number of delays on this route, whereas Monday 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, Korean Air have had the lowest number of delays on this route, with just 25% of flights being delayed.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated April 29, 2026.
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
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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
1,216 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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.
AIR PREMIA
8.1
Very good
89 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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.
Delta
7.9
Good
8,465 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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.
Turkish Airlines
7.4
Good
4,346 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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.
Air Canada
7.1
Good
10,979 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. 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 35m. Fly via STARLUX Airlines, 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 Turkish Airlines. According to our data, you can fly for as low as $488. Users have also found prices from $518 and $669 on AIR PREMIA and Air Canada, 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 cheapest flights from Washington, D.C. Dulles Intl Airport to South Korea?

    Looking at all options, your cheapest flight can be booked for $462. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $1,065 on average, our data indicates $2,560 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 $197). Flying from Washington, D.C. Dulles Intl Airport to South Korea in November is currently the most expensive (average of $902). 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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Top 8 airlines flying from Dulles Intl to South Korea

Discover the top 8 airlines that operate flights from Dulles Intl to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$317Average$1,576FlexibilityNo cancel feeOn-time69%
DeltaCheapest$392Average$1,770FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$590Average$1,270FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$685Average$1,361FlexibilityNo cancel feeOn-time67%
Air ChinaCheapest$729Average$1,205FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$816Average$1,476FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$902Average$1,108FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,552Average$1,824FlexibilityNo cancel feeOn-time81%

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