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Cheap flights from Incheon Intl Airport to Washington, D.C. from $339

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Washington, D.C. departing on 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Air Canada Logo
6:55 pm - 8:54 pmICN-IAD
39h 59m2 stops
Air Canada Logo
4:30 pm - 5:10 pmIAD-ICN
34h 40m2 stops
$339Air Canada
Find Deal
Thu, Nov 13 - Wed, Nov 26
Air Canada Logo
6:55 pm - 8:54 pmICN-IAD
39h 59m2 stops
Air Canada Logo
4:30 pm - 5:10 pmIAD-ICN
34h 40m2 stops
$342Air Canada
Find Deal
Thu, Nov 13 - Wed, Nov 26
Air Canada Logo
6:55 pm - 8:54 pmICN-IAD
39h 59m2 stops
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
$360Air Canada
Find Deal
Thu, Nov 13 - Wed, Nov 26
Air Canada Logo
8:10 pm - 3:46 pmICN-IAD
33h 36m1 stop
Air Canada Logo
4:30 pm - 5:10 pmIAD-ICN
34h 40m2 stops
$372Air Canada
Find Deal
Sun, Nov 9 - Sat, Nov 22
Air Canada Logo
8:10 pm - 3:46 pmICN-IAD
33h 36m1 stop
Air Canada Logo
4:30 pm - 5:10 pmIAD-ICN
34h 40m2 stops
$374Air Canada
Find Deal
Mon, Nov 10 - Sat, Nov 15
Alaska Airlines Logo
8:35 pm - 5:49 amICN-IAD
22h 14m1 stop
Alaska Airlines Logo
7:00 am - 6:35 pmIAD-ICN
22h 35m1 stop
$464Alaska Airlines
Find Deal
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
7:15 pm - 4:49 pmICN-IAD
35h 34m2 stops
American Airlines Logo
6:24 am - 4:45 pmIAD-ICN
44h 21m2 stops
$478American Airlines
Find Deal
Sun, Nov 2 - Sat, Nov 8
American Airlines Logo
7:15 pm - 10:33 pmICN-IAD
17h 18m1 stop
American Airlines Logo
5:03 pm - 4:45 pmIAD-ICN
33h 42m1 stop
$481American Airlines
Find Deal
Mon, Nov 10 - Wed, Nov 26
United Airlines Logo
12:45 pm - 7:27 pmICN-IAD
20h 42m1 stop
United Airlines Logo
6:04 pm - 4:15 pmIAD-ICN
32h 11m1 stop
$492United Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
12:45 pm - 8:52 pmICN-IAD
22h 07m2 stops
United Airlines Logo
6:30 am - 4:15 pmIAD-ICN
19h 45m1 stop
$495United Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 27

Air Canada flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Our best Air Canada deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
Nov 13
ICN6:55 pmIncheon Intl
39h 59m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
Nov 26
IAD4:30 pmWashington, D.C. Dulles Intl
34h 40m
2 stops
ICN5:10 pmIncheon Intl
$339
Find similar
Air Canada
Nov 13
ICN6:55 pmIncheon Intl
39h 59m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
Nov 26
IAD4:30 pmWashington, D.C. Dulles Intl
34h 40m
2 stops
ICN5:10 pmIncheon Intl
$342
Find similar
Air Canada
Nov 13
ICN6:55 pmIncheon Intl
39h 59m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
Nov 26
IAD9:00 amWashington, D.C. Dulles Intl
19h 25m
1 stop
ICN6:25 pmIncheon Intl
$360
Find similar

United Airlines flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Feb 19
ICN12:45 pmIncheon Intl
20h 42m
1 stop
IAD7:27 pmWashington, D.C. Dulles Intl
Feb 23
IAD6:04 pmWashington, D.C. Dulles Intl
32h 11m
1 stop
ICN4:15 pmIncheon Intl
$492
Find similar
United Airlines
Oct 25
ICN4:50 pmIncheon Intl
20h 01m
2 stops
IAD11:51 pmWashington, D.C. Dulles Intl
Oct 30
IAD10:10 pmWashington, D.C. Dulles Intl
28h 00m
2 stops
ICN3:10 pmIncheon Intl
$495
Find similar
United Airlines
Oct 26
ICN11:55 amIncheon Intl
17h 32m
1 stop
IAD4:27 pmWashington, D.C. Dulles Intl
Oct 30
IAD10:10 pmWashington, D.C. Dulles Intl
28h 00m
1 stop
ICN3:10 pmIncheon Intl
$503
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated October 22, 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

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/13

6:55 pm-8:54 pm

2 stops39h 59m

Washington, D.C. Dulles Intl

Wed 11/26

4:30 pm-5:10 pm

2 stops34h 40m

$339

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/13

6:55 pm-8:54 pm

2 stops39h 59m

Washington, D.C. Dulles Intl

Wed 11/26

4:30 pm-5:10 pm

2 stops34h 40m

$342

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/13

6:55 pm-8:54 pm

2 stops39h 59m

Washington, D.C. Dulles Intl

Wed 11/26

9:00 am-6:25 pm

1 stop19h 25m

$360

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 11/9

8:10 pm-3:46 pm

1 stop33h 36m

Washington, D.C. Dulles Intl

Sat 11/22

4:30 pm-5:10 pm

2 stops34h 40m

$372

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 11/10

8:10 pm-3:46 pm

1 stop33h 36m

Washington, D.C. Dulles Intl

Sat 11/15

4:30 pm-5:10 pm

2 stops34h 40m

$374

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 4/8

8:35 pm-5:49 am

1 stop22h 14m

Washington, D.C. Dulles Intl

Wed 4/15

7:00 am-6:35 pm

1 stop22h 35m

$464

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 11/2

7:15 pm-4:49 pm

2 stops35h 34m

Washington, D.C. Dulles Intl

Sat 11/8

6:24 am-4:45 pm

2 stops44h 21m

$478

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 11/10

7:15 pm-10:33 pm

1 stop17h 18m

Washington, D.C. Dulles Intl

Wed 11/26

5:03 pm-4:45 pm

1 stop33h 42m

$481

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 2/19

12:45 pm-7:27 pm

1 stop20h 42m

Washington, D.C. Dulles Intl

Mon 2/23

6:04 pm-4:15 pm

1 stop32h 11m

$492

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sat 11/8

12:45 pm-8:52 pm

2 stops22h 07m

Washington, D.C. Dulles Intl

Thu 11/27

6:30 am-4:15 pm

1 stop19h 45m

$495

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Incheon Intl Airport and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $875. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $879.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,477. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport for around $1,646.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $922 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,523 on average. Flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Incheon Intl to Washington, D.C. Dulles Intl flight route?

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Incheon Intl - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,292 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport for as low as $954 on momondo.

What cabin class options are available on Incheon Intl to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Incheon Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 7% on your flight if you consider stops on a Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight.

How have Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of October 2025, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (ICN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Best Price Found

$1,096

Fastest flight time

13h 35m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the past 72 hours is $1,096. The best round-trip flight deal from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,339.
The fastest flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport takes 13h 35m
Direct flights go from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Incheon Intl to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 6939.0 mi away from Incheon Intl. By plane, this route typically takes 17h 18m.

  • When did momondo last update prices for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.

  • How many operators does momondo search for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $501Free CancellationRating
7.2
11,028 reviews
Search American Airlines flights
United AirlinesPriceFrom $519Free CancellationRating
7.4
8,989 reviews
Search United Airlines flights
Air CanadaPriceFrom $873Free CancellationRating
7.1
10,338 reviews
Search Air Canada flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,153 reviews
Search Korean Air flights
DeltaPriceFrom $1,303Free CancellationRating
7.9
7,979 reviews
Search Delta flights

  • Korean Air Flights From Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

    Korean Air is one of the most popular airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, operating 6 flights/week on average for this route. A good Korean Air flight deal for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport starts from $1,208 round-trip, up to an average price of $1,503. Our users have rated Korean Air at 8.4/10.

  • Delta Flights From Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

    Delta is also a popular choice for this route. Delta flight deals for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport start from as low as $1,303 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,574. Delta operates 6 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 7.9/10 across 7,979 reviews.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
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Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Sterling

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Seoul.

Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?

Flights from Seoul to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Washington, D.C.?

Once you have performed a search for Seoul to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seoul to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seoul to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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