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Cheap flights from Incheon Intl Airport to Washington, D.C. from $362

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 10/24. 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

Air Canada Logo
5:45 pm - 9:38 amICN-IAD
28h 53m2 stops
Air Canada Logo
4:25 pm - 5:10 pmIAD-ICN
34h 45m2 stops
$362Air Canada
Find Deal
vie., oct. 24 - dom., nov. 9
Air Canada Logo
5:45 pm - 9:38 amICN-IAD
28h 53m2 stops
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
$380Air Canada
Find Deal
vie., oct. 24 - dom., nov. 9
Air Canada Logo
6:55 pm - 3:51 pmICN-IAD
34h 56m2 stops
Air Canada Logo
4:30 pm - 5:10 pmIAD-ICN
34h 40m2 stops
$391Air Canada
Find Deal
lun., nov. 24 - mar., dic. 30
American Airlines Logo
7:15 pm - 11:07 pmICN-IAD
41h 52m2 stops
American Airlines Logo
5:27 pm - 4:45 pmIAD-ICN
33h 18m1 stop
$493American Airlines
Find Deal
dom., nov. 2 - sáb., nov. 8
United Airlines Logo
4:50 pm - 11:51 pmICN-IAD
20h 01m2 stops
United Airlines Logo
10:05 pm - 4:20 amIAD-ICN
41h 15m1 stop
$503United Airlines
Find Deal
lun., oct. 6 - lun., oct. 20
United Airlines Logo
12:45 pm - 5:19 amICN-IAD
30h 34m2 stops
United Airlines Logo
10:33 pm - 4:15 pmIAD-ICN
27h 42m2 stops
$505United Airlines
Find Deal
dom., dic. 21 - lun., dic. 29
American Airlines Logo
7:15 pm - 10:19 amICN-IAD
29h 04m2 stops
American Airlines Logo
1:58 pm - 4:45 pmIAD-ICN
36h 47m2 stops
$506American Airlines
Find Deal
dom., nov. 2 - sáb., nov. 8
Multiple Airlines Logo
6:20 pm - 12:23 amICN-IAD
19h 03m1 stop
Multiple Airlines Logo
6:25 am - 5:55 pmIAD-ICN
22h 30m1 stop
$625Multiple Airlines
Find Deal
sáb., oct. 18 - jue., oct. 23
Alaska Airlines Logo
8:35 pm - 4:42 pmICN-IAD
33h 07m2 stops
Alaska Airlines Logo
5:42 pm - 6:35 pmIAD-ICN
35h 53m2 stops
$658Alaska Airlines
Find Deal
lun., oct. 6 - vie., oct. 17
Alaska Airlines Logo
8:35 pm - 4:42 pmICN-IAD
33h 07m2 stops
Alaska Airlines Logo
6:25 am - 6:35 pmIAD-ICN
23h 10m1 stop
$661Alaska Airlines
Find Deal
lun., oct. 6 - sáb., oct. 18

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
Oct 24
ICN5:45 pmIncheon Intl
28h 53m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
Nov 9
IAD4:25 pmWashington, D.C. Dulles Intl
34h 45m
2 stops
ICN5:10 pmIncheon Intl
$362
Find similar
Air Canada
Oct 24
ICN5:45 pmIncheon Intl
28h 53m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
Nov 9
IAD9:00 amWashington, D.C. Dulles Intl
19h 25m
1 stop
ICN6:25 pmIncheon Intl
$380
Find similar
Air Canada
Nov 24
ICN6:55 pmIncheon Intl
34h 56m
2 stops
IAD3:51 pmWashington, D.C. Dulles Intl
Dec 30
IAD4:30 pmWashington, D.C. Dulles Intl
34h 40m
2 stops
ICN5:10 pmIncheon Intl
$391
Find similar

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
Nov 2
ICN7:15 pmIncheon Intl
41h 52m
2 stops
IAD11:07 pmWashington, D.C. Dulles Intl
Nov 8
IAD5:27 pmWashington, D.C. Dulles Intl
33h 18m
1 stop
ICN4:45 pmIncheon Intl
$493
Find similar
American Airlines
Sep 21
ICN5:25 pmIncheon Intl
18h 23m
1 stop
IAD10:48 pmWashington, D.C. Dulles Intl
Sep 24
IAD6:25 amWashington, D.C. Dulles Intl
20h 05m
1 stop
ICN3:30 pmIncheon Intl
$501
Find similar
American Airlines
Nov 2
ICN7:15 pmIncheon Intl
29h 04m
2 stops
IAD10:19 amWashington, D.C. Dulles Intl
Nov 8
IAD1:58 pmWashington, D.C. Dulles Intl
36h 47m
2 stops
ICN4:45 pmIncheon Intl
$506
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 septiembre 17, 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

vie. 10/24

5:45 pm-9:38 am

2 stops28h 53m

Washington, D.C. Dulles Intl

dom. 11/9

4:25 pm-5:10 pm

2 stops34h 45m

$362

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

vie. 10/24

5:45 pm-9:38 am

2 stops28h 53m

Washington, D.C. Dulles Intl

dom. 11/9

9:00 am-6:25 pm

1 stop19h 25m

$380

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 11/24

6:55 pm-3:51 pm

2 stops34h 56m

Washington, D.C. Dulles Intl

mar. 12/30

4:30 pm-5:10 pm

2 stops34h 40m

$391

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 11/2

7:15 pm-11:07 pm

2 stops41h 52m

Washington, D.C. Dulles Intl

sáb. 11/8

5:27 pm-4:45 pm

1 stop33h 18m

$493

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 10/6

4:50 pm-11:51 pm

2 stops20h 01m

Washington, D.C. Dulles Intl

lun. 10/20

10:05 pm-4:20 am

1 stop41h 15m

$503

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 12/21

12:45 pm-5:19 am

2 stops30h 34m

Washington, D.C. Dulles Intl

lun. 12/29

10:33 pm-4:15 pm

2 stops27h 42m

$505

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 11/2

7:15 pm-10:19 am

2 stops29h 04m

Washington, D.C. Dulles Intl

sáb. 11/8

1:58 pm-4:45 pm

2 stops36h 47m

$506

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

sáb. 10/18

6:20 pm-12:23 am

1 stop19h 03m

Washington, D.C. Dulles Intl

jue. 10/23

6:25 am-5:55 pm

1 stop22h 30m

$625

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 10/6

8:35 pm-4:42 pm

2 stops33h 07m

Washington, D.C. Dulles Intl

vie. 10/17

5:42 pm-6:35 pm

2 stops35h 53m

$658

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 10/6

8:35 pm-4:42 pm

2 stops33h 07m

Washington, D.C. Dulles Intl

sáb. 10/18

6:25 am-6:35 pm

1 stop23h 10m

$661

Flights are sorted by cheapest round-trip flights first.

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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 April is also cheap. Prices for this month can be found on momondo for an average of $1,301.

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

Our data shows that Saturday 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 $1,371. 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 $1,524 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 $1,356 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.

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

As of September 2025, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 21% 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

$1,105

Fastest flight time

13h 30m

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 $1,105. 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 $1,526.
The fastest flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport takes 13h 30m
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 18h 06m.

  • 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 $590Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $676Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Air CanadaPriceFrom $873Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights
DeltaPriceFrom $1,303Free CancellationRating
7.9
7,961 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 $1,498. 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 $1,576. 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 7,961 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

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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