Incheon Intl

$441+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
Aug 3 — Aug 101
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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 Tuesday and return on a Saturday

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 July 29, 2025.

Round-trip from

$1,093
(Air Canada)

One-way from

$441
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$2,094

Good round-trip deal

$1,027 or less

Good one-way deal

$491 or less
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. 15% potential increase in price ($318 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in July 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 July 29, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:00 amIAD - ICN
1 stop20h 35mHawaiian Airlines
Fri 9/268:35 pmICN - IAD
1 stop23h 58mHawaiian Airlines
Deal found 7/29$1,094
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 9/149:00 amIAD - ICN
1 stop20h 35mAlaska Airlines
Sun 9/218:35 pmICN - IAD
1 stop23h 58mAlaska Airlines
Deal found 7/28$1,099
This Ovago deal was found by Cheapflights users on 7/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:30 pmIAD - ICN
1 stop30h 10mTurkish Airlines
Fri 10/2411:20 pmICN - IAD
1 stop25h 25mTurkish Airlines
Deal found 7/28$1,104
This Gotogate deal was found by Cheapflights users on 7/28. 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.
Mon 9/155:37 pmIAD - ICN
2 stops33h 28mAir Canada
Fri 9/196:00 pmICN - IAD
2 stops28h 38mAir Canada
Deal found 7/28$1,111
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/189:00 amIAD - ICN
1 stop20h 35mMultiple Airlines
Mon 9/226:20 pmICN - IAD
2 stops35h 32mMultiple Airlines
Deal found 7/28$1,114

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 July 29, 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

Fri 12/12

9:00 am-6:25 pm

1 stop19h 25m

Incheon Intl

Sat 12/27

8:10 pm-11:01 am

2 stops28h 51m

$1,093

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 9/13

9:00 am-6:35 pm

1 stop20h 35m

Incheon Intl

Fri 9/26

8:35 pm-7:33 am

1 stop23h 58m

$1,094

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 9/14

9:00 am-6:35 pm

1 stop20h 35m

Incheon Intl

Sun 9/21

8:35 pm-7:33 am

1 stop23h 58m

$1,099

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 11/22

9:10 pm-9:05 am

1 stop21h 55m

Incheon Intl

Sun 12/7

12:10 am-7:15 pm

1 stop33h 05m

$1,102

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 8/25

6:45 pm-12:30 pm

3 stops28h 45m

Incheon Intl

Mon 9/15

8:45 pm-9:38 am

2 stops25h 53m

$1,103

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 9/12

6:45 pm-7:40 pm

1 stop35h 55m

$441

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 8/27

6:45 pm-9:35 pm

2 stops37h 50m

$442

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 8/26

1:30 pm-5:40 pm

1 stop39h 10m

$515

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 9/28

9:35 am-4:05 pm

2 stops41h 30m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 between terminals.

Read more about IADby Ramsey Qubein
ICN

The AREX express train is a quick option from ICN to Seoul Station, taking about 40-50 minutes.

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 July 25, 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 $998). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 July 29, 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 32% 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 July 27, 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. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Dulles Intl to Incheon 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 July 29, 2025.

The most flights from IAD to ICN 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).

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Istanbul (IST) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $984.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Beijing (PEK) have the shortest average one-way travel time for 1-stop routes: 6h 40m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 2h 46m.

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 July 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Hawaiian Airlines, and Turkish Airlines from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 Air Canada. Our recent data shows that you can find tickets from as low as $1,093 on this airline. Additional options worth looking into are Hawaiian Airlines and Alaska Airlines, starting at $1,094 and $1,099 round-trip. Air Canada is 37% 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 WestJet ($441), Turkish Airlines ($515), and Air Canada ($551).

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

    On average you can expect to pay $2,806 for a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. The cheapest flight overall is $398 while the most popular route, (Washington, D.C. Dulles Intl - Incheon Intl) is currently priced at $889.

  • 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 $998). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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
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 8 airlines flying from Dulles Intl to Incheon Intl

Discover the top 8 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$367Average$1,896FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$591Average$747FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$759Average$1,530FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$800Average$997FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$864Average$1,185FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,265FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,535Average$1,877FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,575Average$2,097FlexibilityNo cancel feeOn-timeN/A

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