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Cheap flights from Incheon Intl Airport to Washington, D.C. from $423

This is the cheapest one-way 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 4/28. 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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Find the cheapest flights from Incheon Intl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:15 pm - 8:30 pm
ICN
-
IAD
39h 15m
2 stops
American Airlines Logo
6:00 am - 3:55 pm
IAD
-
ICN
20h 55m
1 stop
$785American Airlines
Tue, Feb 24 - Thu, Mar 19
Hawaiian Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
23h 05m
1 stop
Hawaiian Airlines Logo
7:05 am - 6:35 pm
IAD
-
ICN
22h 30m
1 stop
$789Hawaiian Airlines
Fri, Feb 27 - Thu, Mar 12
American Airlines Logo
5:50 pm - 10:02 am
ICN
-
IAD
29h 12m
2 stops
American Airlines Logo
8:11 pm - 3:45 pm
IAD
-
ICN
30h 34m
2 stops
$810American Airlines
Mon, Apr 27 - Mon, May 18
American Airlines Logo
5:50 pm - 11:26 pm
ICN
-
IAD
18h 36m
1 stop
American Airlines Logo
11:59 am - 3:45 pm
IAD
-
ICN
38h 46m
1 stop
$814American Airlines
Fri, May 8 - Sun, Jun 14
Multiple Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
23h 05m
1 stop
Multiple Airlines Logo
6:27 pm - 6:35 pm
IAD
-
ICN
34h 08m
1 stop
$817Multiple Airlines
Sun, Feb 22 - Fri, Feb 27
American Airlines Logo
5:50 pm - 8:49 am
ICN
-
IAD
27h 59m
2 stops
American Airlines Logo
11:59 am - 3:45 pm
IAD
-
ICN
38h 46m
1 stop
$818American Airlines
Fri, May 8 - Sun, Jun 14
American Airlines Logo
7:15 pm - 8:48 am
ICN
-
IAD
27h 33m
2 stops
American Airlines Logo
5:52 pm - 3:55 pm
IAD
-
ICN
33h 03m
1 stop
$822American Airlines
Wed, Mar 4 - Thu, Mar 12
Multiple Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
22h 05m
1 stop
Multiple Airlines Logo
7:00 am - 6:35 pm
IAD
-
ICN
22h 35m
1 stop
$823Multiple Airlines
Mon, Mar 9 - Sun, Apr 5
Multiple Airlines Logo
9:10 pm - 7:27 am
ICN
-
IAD
47h 17m
3 stops
Multiple Airlines Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
$832Multiple Airlines
Thu, Apr 16 - Wed, Oct 21
Multiple Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
22h 05m
1 stop
Multiple Airlines Logo
6:50 pm - 6:35 pm
IAD
-
ICN
34h 45m
1 stop
$848Multiple Airlines
Mon, Mar 9 - Sat, Apr 4

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

Our best Hawaiian Airlines deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Hawaiian Airlines
Feb 27
ICN8:35 pmIncheon Intl
23h 05m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
Mar 12
IAD7:05 amWashington, D.C. Dulles Intl
22h 30m
1 stop
ICN6:35 pmIncheon Intl
$789
Hawaiian Airlines
Feb 23
ICN8:35 pmIncheon Intl
34h 45m
1 stop
IAD5:20 pmWashington, D.C. Dulles Intl
Feb 28
IAD7:05 amWashington, D.C. Dulles Intl
21h 30m
1 stop
ICN6:35 pmIncheon Intl
$941
Hawaiian Airlines
Feb 15
ICN8:35 pmIncheon Intl
34h 45m
1 stop
IAD5:20 pmWashington, D.C. Dulles Intl
Mar 1
IAD7:05 amWashington, D.C. Dulles Intl
21h 30m
1 stop
ICN6:35 pmIncheon Intl
$1,123

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

Our best American Airlines deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Feb 24
ICN7:15 pmIncheon Intl
39h 15m
2 stops
IAD8:30 pmWashington, D.C. Dulles Intl
Mar 19
IAD6:00 amWashington, D.C. Dulles Intl
20h 55m
1 stop
ICN3:55 pmIncheon Intl
$785
American Airlines
Apr 27
ICN5:50 pmIncheon Intl
29h 12m
2 stops
IAD10:02 amWashington, D.C. Dulles Intl
May 18
IAD8:11 pmWashington, D.C. Dulles Intl
30h 34m
2 stops
ICN3:45 pmIncheon Intl
$810
American Airlines
May 8
ICN5:50 pmIncheon Intl
18h 36m
1 stop
IAD11:26 pmWashington, D.C. Dulles Intl
Jun 14
IAD11:59 amWashington, D.C. Dulles Intl
38h 46m
1 stop
ICN3:45 pmIncheon Intl
$814

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 February 11, 2026.
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

Tue 2/24

7:15 pm-8:30 pm

2 stops39h 15m

Washington, D.C. Dulles Intl

Thu 3/19

6:00 am-3:55 pm

1 stop20h 55m

$785

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 2/27

8:35 pm-5:40 am

1 stop23h 05m

Washington, D.C. Dulles Intl

Thu 3/12

7:05 am-6:35 pm

1 stop22h 30m

$789

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 4/27

5:50 pm-10:02 am

2 stops29h 12m

Washington, D.C. Dulles Intl

Mon 5/18

8:11 pm-3:45 pm

2 stops30h 34m

$810

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/8

5:50 pm-11:26 pm

1 stop18h 36m

Washington, D.C. Dulles Intl

Sun 6/14

11:59 am-3:45 pm

1 stop38h 46m

$814

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 2/22

8:35 pm-5:40 am

1 stop23h 05m

Washington, D.C. Dulles Intl

Fri 2/27

6:27 pm-6:35 pm

1 stop34h 08m

$817

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/8

5:50 pm-8:49 am

2 stops27h 59m

Washington, D.C. Dulles Intl

Sun 6/14

11:59 am-3:45 pm

1 stop38h 46m

$818

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 3/4

7:15 pm-8:48 am

2 stops27h 33m

Washington, D.C. Dulles Intl

Thu 3/12

5:52 pm-3:55 pm

1 stop33h 03m

$822

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 3/9

8:35 pm-5:40 am

1 stop22h 05m

Washington, D.C. Dulles Intl

Sun 4/5

7:00 am-6:35 pm

1 stop22h 35m

$823

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 4/16

9:10 pm-7:27 am

3 stops47h 17m

Washington, D.C. Dulles Intl

Wed 10/21

1:20 pm-5:55 pm

Nonstop15h 35m

$832

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 3/9

8:35 pm-5:40 am

1 stop22h 05m

Washington, D.C. Dulles Intl

Sat 4/4

6:50 pm-6:35 pm

1 stop34h 45m

$848

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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, November 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 $594. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $996.

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

Our data shows that Sunday 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 $1,334. When flying out on a Friday, 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 $1,671.

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 $1,249 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 $1,006 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.

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

As of February 2026, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 22% more expensive 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

$801

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 $801. 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 $1,198.
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 13h 35m.

  • 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
11,266 reviews
Search American Airlines flights
United AirlinesPriceFrom $512Free CancellationRating
7.4
9,273 reviews
Search United Airlines flights
Air CanadaPriceFrom $727Free CancellationRating
7.1
10,705 reviews
Search Air Canada flights
Korean AirPriceFrom $1,128Free CancellationRating
8.4
1,191 reviews
Search Korean Air flights
DeltaPriceFrom $1,254Free CancellationRating
7.9
8,180 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 7 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 $1,128 round-trip, up to an average price of $1,514. 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 $1,254 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,609. Delta operates 7 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 7.9/10 across 8,180 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
Waldorf
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Laurel
Colonial Beach
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Silver Spring
Towson
Fredericksburg
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Rockville
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Springfield
Sterling
Fairfax
Linthicum Heights

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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.

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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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