Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Incheon Intl Airport to Washington, D.C. from $401

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 2/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 4:31 pm
ICN
-
IAD
35h 16m1 stop
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$463American Airlines
Wed, Feb 4 - Wed, Feb 11
American Airlines Logo
7:15 pm - 10:58 am
ICN
-
IAD
29h 43m2 stops
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$469American Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
7:15 pm - 10:58 am
ICN
-
IAD
29h 43m2 stops
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$482American Airlines
Tue, Feb 3 - Thu, Feb 26
American Airlines Logo
7:15 pm - 12:36 pm
ICN
-
IAD
31h 21m2 stops
American Airlines Logo
5:46 pm - 4:45 pm
IAD
-
ICN
32h 59m2 stops
$483American Airlines
Mon, Feb 2 - Mon, Feb 9
American Airlines Logo
7:15 pm - 4:31 pm
ICN
-
IAD
35h 16m1 stop
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$484American Airlines
Tue, Feb 3 - Thu, Feb 26
American Airlines Logo
7:15 pm - 4:31 pm
ICN
-
IAD
35h 16m1 stop
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$485American Airlines
Mon, Feb 2 - Mon, Feb 9
Hawaiian Airlines Logo
8:35 pm - 4:26 pm
ICN
-
IAD
33h 51m1 stop
Hawaiian Airlines Logo
6:04 pm - 6:35 pm
IAD
-
ICN
34h 31m1 stop
$549Hawaiian Airlines
Thu, Jan 29 - Wed, Feb 11
Hawaiian Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
23h 05m1 stop
Hawaiian Airlines Logo
7:05 am - 6:35 pm
IAD
-
ICN
21h 30m1 stop
$566Hawaiian Airlines
Fri, Feb 20 - Sat, Mar 7
Hawaiian Airlines Logo
8:35 pm - 4:26 pm
ICN
-
IAD
33h 51m1 stop
Hawaiian Airlines Logo
7:00 am - 6:35 pm
IAD
-
ICN
22h 35m1 stop
$567Hawaiian Airlines
Thu, Jan 29 - Wed, Mar 25
Multiple Airlines Logo
8:35 pm - 5:40 am
ICN
-
IAD
22h 05m1 stop
Multiple Airlines Logo
9:00 am - 6:35 pm
IAD
-
ICN
20h 35m1 stop
$583Multiple Airlines
Fri, Mar 13 - Wed, Aug 12

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 4
ICN7:15 pmIncheon Intl
35h 16m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Feb 11
IAD6:00 amWashington, D.C. Dulles Intl
20h 45m
1 stop
ICN4:45 pmIncheon Intl
$463
Find similar
American Airlines
Feb 4
ICN7:15 pmIncheon Intl
29h 43m
2 stops
IAD10:58 amWashington, D.C. Dulles Intl
Feb 8
IAD6:00 amWashington, D.C. Dulles Intl
20h 45m
1 stop
ICN4:45 pmIncheon Intl
$469
Find similar
American Airlines
Feb 3
ICN7:15 pmIncheon Intl
29h 43m
2 stops
IAD10:58 amWashington, D.C. Dulles Intl
Feb 26
IAD6:00 amWashington, D.C. Dulles Intl
20h 45m
1 stop
ICN4:45 pmIncheon Intl
$482
Find similar

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
Jan 29
ICN8:35 pmIncheon Intl
33h 51m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 11
IAD6:04 pmWashington, D.C. Dulles Intl
34h 31m
1 stop
ICN6:35 pmIncheon Intl
$549
Find similar
Hawaiian Airlines
Feb 20
ICN8:35 pmIncheon Intl
23h 05m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
Mar 7
IAD7:05 amWashington, D.C. Dulles Intl
21h 30m
1 stop
ICN6:35 pmIncheon Intl
$566
Find similar
Hawaiian Airlines
Jan 29
ICN8:35 pmIncheon Intl
33h 51m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Mar 25
IAD7:00 amWashington, D.C. Dulles Intl
22h 35m
1 stop
ICN6:35 pmIncheon Intl
$567
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 December 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

Wed 2/4

7:15 pm-4:31 pm

1 stop35h 16m

Washington, D.C. Dulles Intl

Wed 2/11

6:00 am-4:45 pm

1 stop20h 45m

$463

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 2/4

7:15 pm-10:58 am

2 stops29h 43m

Washington, D.C. Dulles Intl

Sun 2/8

6:00 am-4:45 pm

1 stop20h 45m

$469

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 2/3

7:15 pm-10:58 am

2 stops29h 43m

Washington, D.C. Dulles Intl

Thu 2/26

6:00 am-4:45 pm

1 stop20h 45m

$482

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 2/2

7:15 pm-12:36 pm

2 stops31h 21m

Washington, D.C. Dulles Intl

Mon 2/9

5:46 pm-4:45 pm

2 stops32h 59m

$483

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 2/3

7:15 pm-4:31 pm

1 stop35h 16m

Washington, D.C. Dulles Intl

Thu 2/26

6:00 am-4:45 pm

1 stop20h 45m

$484

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 2/2

7:15 pm-4:31 pm

1 stop35h 16m

Washington, D.C. Dulles Intl

Mon 2/9

6:00 am-4:45 pm

1 stop20h 45m

$485

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 1/29

8:35 pm-4:26 pm

1 stop33h 51m

Washington, D.C. Dulles Intl

Wed 2/11

6:04 pm-6:35 pm

1 stop34h 31m

$549

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 2/20

8:35 pm-5:40 am

1 stop23h 05m

Washington, D.C. Dulles Intl

Sat 3/7

7:05 am-6:35 pm

1 stop21h 30m

$566

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 1/29

8:35 pm-4:26 pm

1 stop33h 51m

Washington, D.C. Dulles Intl

Wed 3/25

7:00 am-6:35 pm

1 stop22h 35m

$567

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 3/13

8:35 pm-5:40 am

1 stop22h 05m

Washington, D.C. Dulles Intl

Wed 8/12

9:00 am-6:35 pm

1 stop20h 35m

$583

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $1,392. 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 $1,648.

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 $1,537 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 $1,259 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 $986 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 December 2025, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 25% 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

$1,056

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 $1,056. 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 $1,303.
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
11,052 reviews
Search American Airlines flights
United AirlinesPriceFrom $512Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights
Air CanadaPriceFrom $727Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,185 reviews
Search Korean Air flights
DeltaPriceFrom $1,301Free CancellationRating
7.9
8,014 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 $1,208 round-trip, up to an average price of $1,501. 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 $1,301 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,579. 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 8,014 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
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 1/21
Wed 1/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.