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$418+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
Aug 10 — Aug 171
Mon 8/10
Mon 8/17
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 July 11, 2026.

This Mytrip deal was found by Cheapflights users on 7/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/610:19 pm
IAD
-
ICN
3 stops31h 26m
Multiple Airlines
Mon 10/1910:00 am
ICN
-
IAD
Nonstop13h 50m
Multiple Airlines
Deal found 7/9$1,103
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2311:35 pm
IAD
-
ICN
Nonstop15h 50m
AIR PREMIA
Sun 1/179:05 pm
ICN
-
IAD
Nonstop13h 30m
AIR PREMIA
Deal found 7/10$1,104
This Turkish Airlines deal was found by Cheapflights users on 7/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:45 pm
IAD
-
ICN
1 stop30h 55m
Turkish Airlines
Mon 10/1210:15 am
ICN
-
IAD
1 stop46h 35m
Turkish Airlines
Deal found 7/10$1,105
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:20 pm
IAD
-
ICN
1 stop20h 35m
Turkish Airlines
Wed 11/1812:05 am
ICN
-
IAD
1 stop25h 40m
Turkish Airlines
Deal found 7/10$1,106
This oojo deal was found by Cheapflights users on 7/8. 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 10/121:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Mon 11/210:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 7/8$1,107
This oojo deal was found by Cheapflights users on 7/7. 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.
Sun 8/231:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Sun 8/3010:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 7/7$1,108
This oojo deal was found by Cheapflights users on 7/10. 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.
Sun 9/61:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Mon 10/1910:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 7/10$1,109
This oojo deal was found by Cheapflights users on 7/9. 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 10/219:00 pm
IAD
-
ICN
1 stop31h 05m
Qatar Airways
Tue 10/2712:20 am
ICN
-
IAD
1 stop29h 35m
Qatar Airways
Deal found 7/9$1,110
This oojo deal was found by Cheapflights users on 7/8. 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 10/211:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Fri 10/3010:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Deal found 7/8$1,111
This AIR PREMIA deal was found by Cheapflights users on 7/10. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Mon 10/269:05 pm
ICN
-
IAD
Nonstop13h 30m
AIR PREMIA
Deal found 7/10$1,112
This FlightHub deal was found by Cheapflights users on 7/9. 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.
Sun 11/110:30 am
IAD
-
ICN
2 stops42h 05m
Qatar Airways
Fri 11/1312:20 am
ICN
-
IAD
1 stop45h 50m
Qatar Airways
Deal found 7/9$1,114
This Super.com deal was found by Cheapflights users on 7/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:15 am
IAD
-
GMP
1 stop22h 35m
EVA Air
Fri 9/111:50 pm
GMP
-
IAD
1 stop21h 10m
EVA Air
Deal found 7/7$1,169

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 July 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,103
(Mytrip)

One-way from

$418
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,603

Good round-trip deal

$1,117 or less

Good one-way deal

$649 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 ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 11, 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.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 9/16

9:00 pm-11:25 am

1 stop25h 25m

Incheon Intl

Tue 10/13

1:40 pm-3:40 pm

2 stops39h 00m

$1,148

Washington, D.C.Busan

IAD - PUS

IADPUS

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-10:20 am

1 stop20h 05m

Busan Gimhae

Mon 9/14

11:20 am-10:00 pm

1 stop23h 40m

$1,187

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 10/4

9:45 pm-5:40 pm

1 stop30h 55m

Incheon Intl

Fri 10/30

10:35 am-12:45 pm

1 stop39h 10m

$1,211

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 9/16

4:56 pm-12:40 pm

2 stops30h 44m

Incheon Intl

Wed 12/9

10:00 am-10:43 pm

2 stops26h 43m

$1,224

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 11/21

1:30 pm-8:55 am

1 stop29h 25m

Incheon Intl

Wed 12/2

12:05 am-7:25 pm

1 stop33h 20m

$1,246

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 10/16

6:00 am-2:05 pm

2 stops43h 05m

Incheon Intl

Tue 10/27

10:00 am-5:32 am

2 stops32h 32m

$1,274

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 10/22

7:13 pm-10:25 pm

2 stops38h 12m

Incheon Intl

Fri 11/13

3:00 pm-5:00 am

2 stops28h 00m

$1,274

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 9/3

9:00 pm-10:25 pm

2 stops36h 25m

Incheon Intl

Thu 9/10

3:10 pm-3:40 pm

2 stops37h 30m

$1,286

Washington, D.C.Busan

IAD - PUS

IADPUS

Washington, D.C. Dulles Intl

Wed 9/9

5:57 pm-5:55 pm

2 stops34h 58m

Busan Gimhae

Wed 9/23

12:30 pm-5:40 am

2 stops30h 10m

$1,397

Washington, D.C.Jeju City

IAD - CJU

IADCJU

Washington, D.C. Dulles Intl

Wed 8/19

1:20 pm-7:25 pm

1 stop41h 05m

Jeju City

Wed 8/26

12:20 pm-5:40 am

2 stops30h 20m

$1,398

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 56 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

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 $915). 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 July 11, 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 July 11, 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 24% 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?

Saturday 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, Korean Air have had the lowest number of delays on this route, with just 25% 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 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.

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 July 11, 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
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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
8.2
Very good
99 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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
7.8
Good
8,458 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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
4,442 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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
11,327 reviews
Korean Air
8.4
Very good
1,221 reviews

Crew

8.7

Boarding

8.5

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

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 20h 05m. Fly via Qatar Airways, EVA Air, or Turkish Airlines to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and South Korea is about 7040 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 $738 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 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 (93%), Delta (68%), Korean Air (68%).

  • 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 $510. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $911 on average, our data indicates $2,736 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 $915). 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 9 airlines flying from Dulles Intl to South Korea

Discover the top 9 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 July 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$397Average$1,750FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$441Average$1,216FlexibilityNo cancel feeOn-time67%
AIR PREMIACheapest$649Average$1,299FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$687Average$1,726FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$729Average$1,205FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$816Average$1,476FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$875Average$1,266FlexibilityNo cancel feeOn-time74%
Turkish AirlinesCheapest$929Average$1,109FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,484Average$1,806FlexibilityNo cancel feeOn-time81%

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