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Dulles Intl

$456+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — IAD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Incheon Intl to Washington, D.C. Dulles Intl are usually found in February or April, booked 16 days in advance, depart on a Friday or Sunday and return on a Wednesday

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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$733
(United Airlines)

One-way from

$456
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$940

Good round-trip deal

$1,339 or less

Good one-way deal

$1,158 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. 12% potential increase in price ($209 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 3/612:45 pmICN - IAD
1 stop26h 20mUnited Airlines
mié. 3/196:30 amIAD - ICN
1 stop19h 45mUnited Airlines
Deal found 2/19$733
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 3/56:50 pmICN - IAD
2 stops28h 00mAmerican Airlines
sáb. 4/58:14 pmIAD - ICN
2 stops30h 16mAmerican Airlines
Deal found 2/20$782
This Air China deal was found by Cheapflights users on 2/19. 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 China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/283:30 pmICN - IAD
1 stop36h 40mAir China
mar. 4/86:00 pmIAD - ICN
2 stops33h 35mAir China
Deal found 2/19$789
This WhyPayMore deal was found by Cheapflights users on 2/19. 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.
lun. 7/215:45 pmICN - IAD
1 stop35h 42mAir Canada
sáb. 7/2610:11 pmIAD - ICN
2 stops52h 54mAir Canada
Deal found 2/19$874
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
lun. 4/145:30 pmICN - IAD
1 stop25h 10mMultiple Airlines
vie. 4/187:00 amIAD - ICN
1 stop23h 50mMultiple Airlines
Deal found 2/19$978

Find flights from Incheon Intl to Dulles Intl within your budget

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 febrero 20, 2025.

Fly from

Incheon Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

jue. 3/6

12:45 pm-1:05 am

1 stop26h 20m

Washington, D.C. Dulles Intl

mié. 3/19

6:30 am-3:15 pm

1 stop19h 45m

$733

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mié. 3/5

6:50 pm-8:50 am

2 stops28h 00m

Washington, D.C. Dulles Intl

sáb. 4/5

8:14 pm-3:30 pm

2 stops30h 16m

$782

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

vie. 3/28

3:30 pm-3:10 pm

1 stop36h 40m

Washington, D.C. Dulles Intl

mar. 4/8

6:00 pm-4:35 pm

2 stops33h 35m

$789

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 7/21

5:45 pm-4:27 pm

1 stop35h 42m

Washington, D.C. Dulles Intl

sáb. 7/26

10:11 pm-4:05 pm

2 stops52h 54m

$874

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 4/14

5:30 pm-5:40 am

1 stop25h 10m

Washington, D.C. Dulles Intl

vie. 4/18

7:00 am-7:50 pm

1 stop23h 50m

$978

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

vie. 2/28

12:45 pm-1:00 am

1 stop26h 15m

$456

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 3/24

5:50 pm-3:10 pm

1 stop34h 20m

$458

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 5/25

8:45 pm-5:54 pm

1 stop34h 09m

$478

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mar. 5/27

1:30 pm-6:32 am

3 stops54h 02m

$506

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 3/2

6:50 pm-10:33 pm

1 stop17h 43m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Incheon Intl to Dulles Intl

Get recent, data-driven insights about flights from Incheon Intl to Dulles Intl including ideal travel times, pricing trends, and more.

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 February 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 16 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, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 febrero 20, 2025.

One of the essential ways to save on airfare from Incheon Intl Airport 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 at noon could potentially save you up to 29% on airfare.

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

Explore weekly flight availability from Incheon Intl 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 febrero 20, 2025.

The most flights from ICN 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).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 febrero 20, 2025.
To help decide which airline to fly from Seoul to Washington, D.C., see what other customers have to say about Singapore Airlines, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Singapore Airlines
8.1
Very good
1,299 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

United Airlines
7.4
Good
8,766 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

American Airlines
7.2
Good
10,000 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

WestJet
7.2
Good
2,801 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Ethiopian Air
7.2
Good
775 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Entertainment

8.0

Boarding

8.2

Food

7.7

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

  • 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 $733. Other airlines that can offer you cheap pricing are American Airlines, from $782, and Air China, from $789. These flights start at 49% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $456 on United Airlines. Other airlines that offer cheap prices include Air China from $458 and WestJet from $478 one-way.

  • 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 $1,077. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $733 on average our data indicates $2,806 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, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Springfield
Rockville
Tysons
Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Sterling
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill

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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 Reagan-National flights
Incheon Intl to Baltimore 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$688Average$839FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$726Average$1,087FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$965Average$970FlexibilityNo cancel feeOn-time67%
DeltaCheapest$1,313Average$1,667FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,334Average$1,641FlexibilityNo cancel feeOn-time81%
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