HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Incheon Intl

$565+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ICN
May 27 — Jun 31
Wed 5/27
Wed 6/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Incheon Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Incheon Intl are usually found in May or October, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap 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 April 27, 2026.

This FlightHub deal was found by Cheapflights users on 4/22. 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.
Thu 11/52:30 pm
IAD
-
ICN
1 stop28h 35m
Turkish Airlines
Wed 11/1112:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/22$1,084
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Mon 5/41:20 pm
IAD
-
ICN
Nonstop15h 35m
Multiple Airlines
Sat 6/68:45 pm
ICN
-
IAD
3 stops51h 01m
Multiple Airlines
Deal found 4/23$1,093
This oojo deal was found by Cheapflights users on 4/22. 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.
Sun 4/261:20 pm
IAD
-
ICN
1 stop39h 20m
Turkish Airlines
Wed 5/610:15 am
ICN
-
IAD
1 stop38h 20m
Turkish Airlines
Deal found 4/22$1,096
This Booking.com deal was found by Cheapflights users on 4/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Tue 11/1712:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/26$1,099
This oojo deal was found by Cheapflights users on 4/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Thu 12/1012:10 am
ICN
-
IAD
1 stop33h 05m
Turkish Airlines
Deal found 4/25$1,102
This FlightHub deal was found by Cheapflights users on 4/27. 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 10/262:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Thu 11/1212:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/27$1,107
This CrystalTravel deal was found by Cheapflights users on 4/24. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:15 am
IAD
-
ICN
1 stop28h 30m
EVA Air
Wed 10/2112:00 pm
ICN
-
IAD
1 stop23h 00m
EVA Air
Deal found 4/24$1,112
This FlightHub deal was found by Cheapflights users on 4/26. 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 11/201:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 12/210:45 am
ICN
-
IAD
1 stop46h 30m
Turkish Airlines
Deal found 4/26$1,120
This FlightHub deal was found by Cheapflights users on 4/24. 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 11/22:30 pm
IAD
-
ICN
1 stop37h 50m
Turkish Airlines
Sun 11/1512:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/24$1,121
This Booking.com deal was found by Cheapflights users on 4/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Wed 11/412:10 am
ICN
-
IAD
1 stop26h 35m
Turkish Airlines
Deal found 4/22$1,122
This oojo deal was found by Cheapflights users on 4/22. 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.
Sun 10/252:30 pm
IAD
-
ICN
1 stop38h 50m
Turkish Airlines
Thu 10/2912:10 am
ICN
-
IAD
1 stop25h 35m
Turkish Airlines
Deal found 4/22$1,126

Find 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 April 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,112
(CrystalTravel)

One-way from

$565
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,554

Good round-trip deal

$1,112 or less

Good one-way deal

$559 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Incheon Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Incheon Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Incheon Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Incheon Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Incheon Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Incheon Intl.
Search Deals

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 April 27, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 8/3

7:29 pm-10:25 pm

2 stops37h 56m

Incheon Intl

Mon 8/24

8:00 am-6:27 pm

2 stops47h 27m

$1,391

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 6/9

9:00 am-11:20 am

2 stops37h 20m

Incheon Intl

Wed 8/12

9:50 pm-10:52 pm

2 stops38h 02m

$1,786

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 7/21

6:00 am-5:20 pm

2 stops22h 20m

Incheon Intl

Thu 7/23

7:00 pm-10:47 am

2 stops28h 47m

$1,821

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 7/26

10:23 pm-3:00 pm

2 stops27h 37m

Incheon Intl

Wed 8/5

8:25 am-10:19 pm

2 stops26h 54m

$1,833
Quickest round-trip

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 8/29

1:30 pm-5:40 pm

Nonstop15h 10m

Incheon Intl

Wed 9/30

10:25 am-11:05 am

Nonstop13h 40m

$1,852

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 10/24

6:00 am-5:50 pm

1 stop22h 50m

Incheon Intl

Wed 11/18

10:15 am-9:50 am

Nonstop13h 35m

$1,856

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 7/20

10:23 pm-3:00 pm

2 stops27h 37m

Incheon Intl

Fri 7/31

4:50 pm-5:27 am

2 stops25h 37m

$1,871

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 9/20

1:15 pm-5:40 pm

Nonstop15h 25m

Incheon Intl

Sat 10/10

10:25 am-11:05 am

Nonstop13h 40m

$1,902

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 9/29

1:15 pm-5:40 pm

Nonstop15h 25m

Incheon Intl

Tue 10/20

10:25 am-11:05 am

Nonstop13h 40m

$1,952

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 9/29

1:15 pm-5:40 pm

Nonstop15h 25m

Incheon Intl

Tue 10/13

8:45 am-2:41 pm

1 stop18h 56m

$1,962

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust 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 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.

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?

Booking 14 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, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $1,392). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $2,235). 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 April 27, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Incheon 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 Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Incheon Intl Airport trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

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

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 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 April 27, 2026.
Get a feel of what it's like to fly with Korean Air,AIR PREMIA, andDelta 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.
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.
Korean Air
8.4
Very good
1,213 reviews
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.
AIR PREMIA
8.2
Very good
87 reviews
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.
Delta
7.9
Good
8,463 reviews
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.
Turkish Airlines
7.4
Good
4,337 reviews
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.
Air Canada
7.1
Good
10,974 reviews
Korean Air
8.4
Very good
1,213 reviews

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

    For as low as $1,821, Delta can have you in Incheon Intl Airport from Washington, D.C. Dulles Intl Airport in 22h 20m. The distance from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is about 6939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as $317 on this airline. Additional options worth looking into are Delta and AIR PREMIA, starting at $392 and $590 round-trip. United Airlines is 81% 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 Turkish Airlines ($488), AIR PREMIA ($518), and Air Canada ($669).

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

    On average you can expect to pay $2,560 for a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. The cheapest flight overall is $462 while the most popular route, (Washington, D.C. Dulles Intl - Incheon Intl) is currently priced at $1,073.

  • 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, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (average of $1,392). Flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport in December is currently the most expensive (average of $2,235). 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
Seongnam
Suwon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Incheon Intl

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

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 April 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$317Average$1,576FlexibilityNo cancel feeOn-time69%
DeltaCheapest$392Average$1,770FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$590Average$1,270FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$685Average$1,361FlexibilityNo cancel feeOn-time67%
Air ChinaCheapest$729Average$915FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$816Average$1,476FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$902Average$1,108FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,552Average$1,820FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.