Incheon Intl

$483+ Cheap flights from Dulles Intl (IAD) to Incheon Intl (ICN)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
Mar 31 — Apr 71
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Incheon Intl are usually found in November or January, booked 28 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Dulles Intl to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Incheon Intl (ICN). 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$901
(FlightHub)

One-way from

$483
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,649

Good round-trip deal

$1,389 or less

Good one-way deal

$592 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Incheon Intl flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Incheon Intl flights.
From Washington, D.C. Dulles Intl to Incheon Intl
One-way flight from Washington, D.C. Dulles Intl to Incheon Intl
Highest demand for flights based on searches. 13% potential increase in price ($284 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Incheon Intl.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Incheon Intl.

Find flight deals from Dulles Intl to Incheon Intl

Cheapest flights from Dulles Intl to Incheon Intl
Explore the most affordable flight options available from Dulles Intl to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Trip.com deal was found by Cheapflights users on 3/24. 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 3/255:35 pmIAD - ICN
1 stop39h 10mAir China
Sat 5/31:05 pmICN - IAD
1 stop19h 25mAir China
Deal found 3/24$854
This FlightHub deal was found by Cheapflights users on 3/24. 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 3/311:30 pmIAD - ICN
1 stop39h 10mTurkish Airlines
Sat 4/1210:20 amICN - IAD
1 stop38h 25mTurkish Airlines
Deal found 3/24$891
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:45 pmIAD - ICN
1 stop35h 00mMultiple Airlines
Tue 5/271:30 pmICN - IAD
2 stops39h 44mMultiple Airlines
Deal found 3/25$1,019
This oojo deal was found by Cheapflights users on 3/24. 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.
Tue 4/225:38 pmIAD - ICN
2 stops31h 27mCathay Pacific
Tue 5/2010:10 amICN - IAD
2 stops32h 45mCathay Pacific
Deal found 3/24$1,177

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Incheon 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 March 26, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Incheon Intl

Route

Depart

Return

Price

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 3/29

5:35 pm-4:35 pm

1 stop34h 00m

Incheon Intl

Sat 5/3

1:05 pm-7:30 pm

1 stop19h 25m

$854

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 3/31

1:30 pm-5:40 pm

1 stop39h 10m

Incheon Intl

Sat 4/12

10:20 am-11:45 am

1 stop38h 25m

$891

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 5/14

6:45 pm-6:45 pm

1 stop35h 00m

Incheon Intl

Tue 5/27

1:30 pm-4:14 pm

2 stops39h 44m

$1,019

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 5/6

5:38 pm-2:05 pm

2 stops31h 27m

Incheon Intl

Tue 5/27

3:10 pm-5:55 am

2 stops27h 45m

$1,217

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 4/21

7:31 am-10:15 pm

2 stops49h 44m

$483

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 4/22

11:00 pm-4:35 pm

1 stop28h 35m

$491

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 5/6

1:30 pm-5:40 pm

1 stop39h 10m

$527

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 5/30

6:45 pm-6:45 pm

1 stop35h 00m

$591

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 4/4

10:19 pm-4:05 pm

2 stops28h 46m

$739

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 5/9

11:00 am-10:40 am

1 stop34h 40m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 11 results
1
2

Compare providers for flights from Dulles Intl to Incheon 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 Dulles Intl to Incheon Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 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 Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Incheon 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 Washington, D.C. Dulles Intl Airport-Incheon Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Washington, D.C. Dulles Intl Airport to Incheon 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 Washington, D.C. Dulles Intl Airport to Incheon Intl Airport trip
Airports
IAD

Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate the airport's complex layout.

Read more about IADby Ramsey Qubein
ICN

Use the AREX express train for a quick 40-50 minute trip from ICN to Seoul Station. It's fast and convenient for city access.

Read more about ICNby Gabriel Leigh
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

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

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Incheon Intl. Price data was last updated on March 21, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $1,002). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in June is currently the most expensive (average of $1,661). 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 ICN?

Find hourly flight availability from Dulles Intl to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Incheon Intl. Price data was last updated on March 23, 2025.

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

Rainfall in Incheon Intl by month

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

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

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

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon 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 Incheon Intl. Reviews last updated March 26, 2025.
Read reviews from past customers who have flown Korean Air, Delta and Cathay Pacific from Washington, D.C. to Seoul. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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.

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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.
8.0
Very good

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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.

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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.

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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.

Entertainment

8.2

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

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 Incheon 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 Washington, D.C. Dulles Intl Airport to Incheon Intl Airport round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as $901 on this airline. Additional options worth looking into are Air China and WestJet, starting at $1,177 and $1,185 round-trip. Turkish Airlines is 50% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport are Air China ($491), Turkish Airlines ($527), and WestJet ($592).

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

    On average you can expect to pay $3,259 for a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. The cheapest flight overall is $563 while the most popular route, (Washington, D.C. Dulles Intl - Incheon Intl) is currently priced at $812.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $1,002). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in June is currently the most expensive (average of $1,661). 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
Suwon
Seongnam
Daejeon

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Alternative routes for Dulles Intl to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Dulles Intl to Incheon Intl

Discover the top 9 airlines that operate flights from Dulles Intl to Incheon 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$802Average$1,070FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$864Average$1,193FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,164FlexibilityNo cancel feeOn-time71%
Asiana AirlinesCheapest$1,312Average$1,958FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,548Average$1,863FlexibilityNo cancel feeOn-time81%
KLMCheapest$1,559Average$1,787FlexibilityNo cancel feeOn-time75%
DeltaCheapest$1,575Average$1,974FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$1,583Average$1,710FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$1,605Average$2,279FlexibilityNo cancel feeOn-time69%
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