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Dulles Intl

$435+ Cheap flights from South Korea to Dulles Intl (IAD)

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — IAD
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from South Korea to Dulles Intl

Cheapest flights from South Korea to Dulles Intl
Explore the most affordable flight options available from South Korea to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Mytrip deal was found by Cheapflights users on 2/1. 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.
Mon 3/26:55 pm
ICN
-
IAD
2 stops54h 49m
Air Canada
Mon 3/99:00 am
IAD
-
ICN
1 stop19h 25m
Air Canada
Deal found 2/1$678
This Air Canada deal was found by Cheapflights users on 2/1. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:55 pm
ICN
-
IAD
2 stops39h 28m
Air Canada
Mon 5/118:15 am
IAD
-
ICN
2 stops42h 50m
Air Canada
Deal found 2/1$694
This FlightHub deal was found by Cheapflights users on 2/1. 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.
Fri 5/157:05 pm
ICN
-
IAD
1 stop38h 24m
Air Canada
Mon 6/14:10 pm
IAD
-
ICN
1 stop36h 20m
Air Canada
Deal found 2/1$696
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:55 pm
ICN
-
IAD
2 stops40h 28m
Air Canada
Tue 3/109:55 am
IAD
-
ICN
2 stops42h 30m
Air Canada
Deal found 2/1$723
This American Airlines deal was found by Cheapflights users on 2/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:15 pm
ICN
-
IAD
2 stops39h 15m
American Airlines
Mon 3/99:19 am
IAD
-
ICN
2 stops41h 36m
American Airlines
Deal found 2/1$802
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:15 pm
ICN
-
IAD
1 stop17h 38m
American Airlines
Wed 3/45:00 am
IAD
-
ICN
2 stops21h 45m
American Airlines
Deal found 2/2$806
This Kissandfly.com deal was found by Cheapflights users on 2/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:15 pm
ICN
-
IAD
1 stop35h 35m
British Airways
Wed 3/46:00 am
IAD
-
ICN
1 stop20h 45m
British Airways
Deal found 2/2$814
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:30 am
ICN
-
IAD
1 stop32h 39m
United Airlines
Sat 4/2510:10 pm
IAD
-
ICN
1 stop27h 50m
United Airlines
Deal found 2/3$820
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:30 am
ICN
-
IAD
2 stops22h 26m
United Airlines
Fri 7/246:30 am
IAD
-
ICN
1 stop19h 30m
United Airlines
Deal found 2/2$821
This American Airlines deal was found by Cheapflights users on 2/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:15 pm
ICN
-
IAD
2 stops29h 45m
American Airlines
Tue 3/106:00 am
IAD
-
ICN
1 stop20h 55m
American Airlines
Deal found 2/1$826
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:35 pm
ICN
-
IAD
1 stop24h 59m
Alaska Airlines
Wed 7/226:05 am
IAD
-
ICN
1 stop22h 25m
Alaska Airlines
Deal found 2/2$841
This Trip.com deal was found by Cheapflights users on 2/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:55 pm
GMP
-
IAD
1 stop27h 10m
ANA
Tue 11/311:10 am
IAD
-
GMP
1 stop21h 20m
ANA
Deal found 2/2$1,090

Find flight deals from South Korea to Dulles Intl

Keep the following information in mind while searching for South Korea to Dulles Intl flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$678
(Mytrip)

One-way from

$435
(FlightHub)

Popular in

August

Cheapest in

November

Average price

$667

Good round-trip deal

$1,207 or less

Good one-way deal

$801 or less
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.
Search Deals
From South Korea to Washington, D.C. Dulles Intl
Search Deals
One-way flight from South Korea to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from South Korea to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from South Korea to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea to Dulles Intl 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 February 4, 2026.
Use the filters below to find and compare flights from South Korea to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

South Korea

Fly to

Dulles Intl

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/22

11:30 am-1:17 am

1 stop26h 47m

Washington, D.C. Dulles Intl

Sun 7/26

5:55 pm-4:20 am

1 stop21h 25m

$841

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/1

11:30 am-6:00 am

1 stop31h 30m

Washington, D.C. Dulles Intl

Sat 5/9

10:10 pm-4:20 am

1 stop41h 10m

$951

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/22

7:35 pm-4:33 pm

1 stop33h 58m

Washington, D.C. Dulles Intl

Tue 7/21

5:01 pm-5:30 pm

1 stop35h 29m

$972

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/22

11:30 am-12:45 am

2 stops26h 15m

Washington, D.C. Dulles Intl

Thu 7/23

10:10 pm-3:00 pm

1 stop27h 50m

$978

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 5/25

7:35 pm-7:34 am

1 stop24h 59m

Washington, D.C. Dulles Intl

Mon 7/20

6:05 am-5:30 pm

1 stop22h 25m

$999

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 7/8

11:30 am-6:00 am

1 stop31h 30m

Washington, D.C. Dulles Intl

Tue 8/18

10:10 pm-3:00 pm

1 stop27h 50m

$1,009

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 4/24

7:35 pm-12:09 am

1 stop17h 34m

Washington, D.C. Dulles Intl

Fri 7/17

9:00 am-5:30 pm

1 stop19h 30m

$1,088

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 5/12

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Tue 11/3

11:10 am-10:30 pm

1 stop21h 20m

$1,090

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 2/19

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Wed 3/4

11:10 am-10:30 pm

1 stop21h 20m

$1,119

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 7/13

7:35 pm-7:32 am

1 stop24h 57m

Washington, D.C. Dulles Intl

Sun 8/23

6:30 am-5:30 pm

1 stop22h 00m

$1,139

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 48 results
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Best time to book a flight from South Korea to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from South Korea 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 South Korea to Washington, D.C. Dulles Intl Airport

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

Currently, November is the cheapest month in which you can book a flight from South Korea to Washington, D.C. Dulles Intl Airport (average of $439). Flying from South Korea to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $992). 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 KR to IAD?

Find hourly flight availability from South Korea to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 4, 2026.

One of the essential ways to save on airfare from South Korea to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 67% on airfare.

What is the cheapest day to fly from South Korea to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from South Korea to Dulles Intl. Price data was last updated on January 31, 2026.

Travelers seeking maximum savings on their South Korea to Washington, D.C. Dulles Intl Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from South Korea to Dulles Intl. 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 February 4, 2026.

The most flights from KR0 to IAD are scheduled on a Monday (2 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 South Korea to Washington, D.C. delayed?

About 16% of weekly flights between South Korea and Washington, D.C. have experienced delays in the past year, with the average delay time being 125 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning 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 South Korea to Washington, D.C. flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 16% of flights being delayed.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated February 4, 2026.
Read through reviews of airlines operating flights from South Korea to Washington, D.C. Dulles Intl Airport, such as Korean Air, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,138 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,236 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
American Airlines
7.2
Good
11,218 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,684 reviews
Korean Air
8.4
Very good
1,188 reviews

Overall

8.4

Food

8.1

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from South Korea to Dulles Intl. 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 South Korea to Washington, D.C. Dulles Intl Airport?

    For as low as $841, United Airlines can have you in Washington, D.C. Dulles Intl Airport from South Korea in 26h 47m. South Korea and Washington, D.C. Dulles Intl Airport are separated by a distance of 6939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from South Korea to Washington, D.C. Dulles Intl Airport are Breeze Airways ($31), Frontier ($80), and Delta ($98).

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

    While some choose either Seoul Gimpo Intl - Washington, D.C. Dulles Intl or Busan Gimhae - Washington, D.C. Dulles Intl, Incheon Intl - Washington, D.C. Dulles Intl is the most popular route from South Korea to Washington, D.C. Dulles Intl Airport.

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

    On average you can expect to pay $1,219 for a flight from South Korea to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $636 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $685.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Korea to Dulles Intl 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 South Korea to Washington, D.C. Dulles Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from South Korea to Washington, D.C. Dulles Intl Airport (average of $439). Flying from South Korea to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $992). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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Alternative routes for South Korea to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from South Korea to Dulles Intl

Discover the top 5 airlines that operate flights from South Korea to Dulles Intl. 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$783FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$512Average$731FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$727Average$965FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,128Average$1,514FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,254Average$1,580FlexibilityNo cancel feeOn-timeN/A

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