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Dulles Intl

$372+ Cheap flights from Incheon Intl (ICN) 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — IAD
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. Dulles Intl are usually found in November or February, booked 20 days in advance, depart on a Sunday or Saturday and return on a Tuesday

Cheap flight deals from Incheon Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$471
(Air Canada)

One-way from

$372
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$757

Good round-trip deal

$1,418 or less

Good one-way deal

$1,077 or less
Provider with most accurate pricing for Incheon Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Incheon Intl-Washington, D.C. Dulles Intl flights.
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From Incheon Intl to Washington, D.C. Dulles Intl
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One-way flight from Incheon Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 9% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Incheon Intl to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Incheon Intl to Washington, D.C. Dulles Intl.
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Find flight deals from Incheon Intl to Dulles Intl

Cheapest flights from Incheon Intl to Dulles Intl
Explore the most affordable flight options available from Incheon Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 17, 2025.

This Air Canada deal was found by Cheapflights users on 11/17. 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.
Mon 12/228:10 pmICN - IAD
2 stops29h 37mAir Canada
Mon 1/54:30 pmIAD - ICN
2 stops33h 30mAir Canada
Deal found 11/17$478
This Air Canada deal was found by Cheapflights users on 11/16. 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.
Thu 12/186:55 pmICN - IAD
2 stops30h 40mAir Canada
Fri 1/94:30 pmIAD - ICN
1 stop35h 55mAir Canada
Deal found 11/16$479
This WhyPayMore deal was found by Cheapflights users on 11/17. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:10 pmICN - IAD
1 stop33h 36mAir Canada
Fri 2/279:00 amIAD - ICN
2 stops41h 00mAir Canada
Deal found 11/17$481
This Air Canada deal was found by Cheapflights users on 11/15. 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.
Sun 12/215:55 pmICN - IAD
2 stops31h 53mAir Canada
Tue 12/309:45 amIAD - ICN
2 stops42h 40mAir Canada
Deal found 11/15$483
This Air Canada deal was found by Cheapflights users on 11/16. 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.
Tue 12/238:10 pmICN - IAD
1 stop33h 36mAir Canada
Tue 1/135:16 pmIAD - ICN
2 stops33h 54mAir Canada
Deal found 11/16$485
This Air Canada deal was found by Cheapflights users on 11/15. 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.
Tue 12/238:10 pmICN - IAD
1 stop33h 36mAir Canada
Wed 2/189:00 amIAD - ICN
1 stop19h 25mAir Canada
Deal found 11/15$491
This United Airlines deal was found by Cheapflights users on 11/15. 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.
Thu 12/2512:45 pmICN - IAD
1 stop30h 37mUnited Airlines
Tue 2/176:05 pmIAD - ICN
1 stop21h 35mUnited Airlines
Deal found 11/15$495
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Thu 12/256:00 pmICN - IAD
1 stop25h 22mUnited Airlines
Thu 1/810:20 pmIAD - ICN
1 stop27h 55mUnited Airlines
Deal found 11/17$498
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Tue 11/2512:45 pmICN - IAD
2 stops20h 07mUnited Airlines
Sat 2/2110:25 pmIAD - ICN
2 stops27h 50mUnited Airlines
Deal found 11/17$567
This United Airlines deal was found by Cheapflights users on 11/15. 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 12/176:00 pmICN - IAD
1 stop25h 27mUnited Airlines
Thu 2/196:20 amIAD - ICN
1 stop19h 55mUnited Airlines
Deal found 11/15$608

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl 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 November 17, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Incheon Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/1

11:30 am-10:43 pm

1 stop24h 13m

Washington, D.C. Dulles Intl

Sat 5/9

10:10 pm-4:20 am

1 stop41h 10m

$495

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 2/19

12:45 pm-11:49 am

2 stops37h 04m

Washington, D.C. Dulles Intl

Mon 2/23

4:10 pm-5:40 am

1 stop23h 30m

$498

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 12/24

12:45 pm-11:23 pm

2 stops24h 38m

Washington, D.C. Dulles Intl

Wed 1/7

6:15 pm-5:40 am

1 stop21h 25m

$498

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 12/25

6:00 pm-5:19 am

2 stops25h 19m

Washington, D.C. Dulles Intl

Wed 1/7

1:05 pm-5:40 am

2 stops26h 35m

$498

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 12/24

12:45 pm-11:23 pm

2 stops24h 38m

Washington, D.C. Dulles Intl

Mon 2/16

6:20 am-4:15 pm

1 stop19h 55m

$702

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 12/24

12:45 pm-11:23 pm

2 stops24h 38m

Washington, D.C. Dulles Intl

Tue 2/17

6:05 pm-5:40 am

1 stop21h 35m

$702

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 12/23

6:00 pm-5:19 am

2 stops25h 19m

Washington, D.C. Dulles Intl

Thu 2/19

6:20 am-4:15 pm

1 stop19h 55m

$702

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 12/23

6:00 pm-1:07 am

1 stop21h 07m

Washington, D.C. Dulles Intl

Mon 1/5

8:15 am-5:40 am

2 stops31h 25m

$705

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 12/26

6:00 pm-5:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Wed 1/7

4:10 pm-5:40 am

1 stop23h 30m

$705

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 12/26

12:45 pm-5:22 am

1 stop30h 37m

Washington, D.C. Dulles Intl

Sun 1/11

6:15 pm-5:40 am

1 stop21h 25m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 19 results
1
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Compare providers for flights from Incheon Intl to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Incheon Intl to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Gurufare the most. Gurufare has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Incheon Intl to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to Dulles Intl. Price data was last updated on November 14, 2025.

To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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 ICN to IAD?

Find hourly flight availability from Incheon Intl 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 November 17, 2025.

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

How much does it cost to fly round-trip from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

The best insider tips for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Incheon Intl Airport to Washington, D.C. Dulles Intl Airport trip
Airports
ICN

Plan for a 20-minute wait at security in ICN, especially if flying premium cabin without fast track access.

Read more about ICNby Gabriel Leigh
IAD

Use the Silver Line Metro to reach downtown from IAD in under 40 minutes, a cost-effective option for city access.

Read more about IADby Ramsey Qubein
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 November 17, 2025.
See what other customers who have flown with Korean Air, Delta, and United Airlines from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,166 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
1,166 reviews
Korean Air
8.4
Very good
1,166 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
8,006 reviews
Korean Air
8.4
Very good
1,166 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
9,014 reviews
Korean Air
8.4
Very good
1,166 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
11,044 reviews
Korean Air
8.4
Very good
1,166 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
10,457 reviews
Korean Air
8.4
Very good
1,166 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 Incheon Intl 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 Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

    United Airlines can get you from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in just under 24h 13m. Your travel time can differ by up to . The distance from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport is about 6939 mi.

  • What are the cheapest airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport round-trip from $501. Other airlines that can offer you cheap pricing are United Airlines, from $516, and Air Canada, from $727. These flights start at 60% lower than the current average price 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $655. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $445 on average, our data indicates $1,327 when flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Alternative routes for Incheon Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Baltimore flights
Incheon Intl to Reagan-National flights
Gimpo Intl to Baltimore flights

Top 5 airlines flying from Incheon Intl to Dulles Intl

Discover the top 5 airlines that operate flights from Incheon Intl 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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$852FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$516Average$741FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$727Average$965FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,208Average$1,502FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,303Average$1,579FlexibilityNo cancel feeOn-timeN/A

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