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Cheap flights from Incheon Intl Airport to Washington, D.C. from $625

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 5/18. 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.
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
$1,039AIR PREMIA
Fri, Oct 2 - Fri, Oct 9
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
$1,096AIR PREMIA
Mon, Jun 8 - Wed, Jul 15
Air China Logo
3:45 pm - 7:30 pm
ICN
-
IAD
40h 45m
1 stop
Air China Logo
11:00 pm - 10:00 pm
IAD
-
ICN
34h 00m
1 stop
$1,115Air China
Mon, Sep 7 - Fri, Sep 18
Air China Logo
3:45 pm - 7:30 pm
ICN
-
IAD
40h 45m
1 stop
Air China Logo
11:00 pm - 11:35 am
IAD
-
ICN
23h 35m
1 stop
$1,116Air China
Mon, Sep 7 - Fri, Sep 18
Air China Logo
3:45 pm - 7:30 pm
ICN
-
IAD
40h 45m
1 stop
Air China Logo
11:00 pm - 4:35 pm
IAD
-
ICN
28h 35m
1 stop
$1,140Air China
Mon, Sep 7 - Fri, Sep 18
Air China Logo
3:45 pm - 7:30 pm
ICN
-
IAD
40h 45m
1 stop
Air China Logo
11:00 pm - 11:35 am
IAD
-
ICN
23h 35m
1 stop
$1,145Air China
Mon, Sep 7 - Fri, Sep 18
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
$1,150AIR PREMIA
Wed, Jun 10 - Fri, Jul 17
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
$1,168AIR PREMIA
Sun, Sep 20 - Fri, Sep 25
Multiple Airlines Logo
9:20 pm - 5:40 am
ICN
-
IAD
21h 20m
1 stop
Multiple Airlines Logo
5:42 pm - 3:20 pm
IAD
-
ICN
32h 38m
1 stop
$1,206Multiple Airlines
Fri, Oct 2 - Sat, Oct 10
Multiple Airlines Logo
7:35 pm - 4:35 pm
ICN
-
IAD
34h 00m
1 stop
Multiple Airlines Logo
7:53 pm - 4:00 am
IAD
-
ICN
43h 07m
2 stops
$1,220Multiple Airlines
Mon, Jun 8 - Wed, Jul 15

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

Our best Turkish Airlines deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Turkish Airlines
Jun 22
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
Jul 13
IAD1:20 pmWashington, D.C. Dulles Intl
39h 20m
1 stop
ICN5:40 pmIncheon Intl
$1,238
Turkish Airlines
Jun 22
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
Jul 13
IAD1:20 pmWashington, D.C. Dulles Intl
39h 20m
1 stop
ICN5:40 pmIncheon Intl
$1,240
Turkish Airlines
Jun 15
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
Jul 13
IAD1:20 pmWashington, D.C. Dulles Intl
39h 20m
1 stop
ICN5:40 pmIncheon Intl
$1,241

Qatar Airways flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

Our best Qatar Airways deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Qatar Airways
Jul 14
ICN1:20 amIncheon Intl
27h 20m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Aug 4
IAD9:00 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
ICN5:05 pmIncheon Intl
$1,305
Qatar Airways
Jul 14
ICN1:20 amIncheon Intl
27h 20m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Aug 4
IAD9:00 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
ICN5:05 pmIncheon Intl
$1,308
Qatar Airways
Jun 15
ICN11:45 pmIncheon Intl
28h 55m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Jun 22
IAD9:00 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
ICN5:05 pmIncheon Intl
$1,313

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 May 5, 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

Cheapest round-trip
Quickest round-trip

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 10/2

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Fri 10/9

1:20 pm-5:55 pm

Nonstop15h 35m

$1,039

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 6/8

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Wed 7/15

1:20 pm-5:55 pm

Nonstop15h 35m

$1,096

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-10:00 pm

1 stop34h 00m

$1,115

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-11:35 am

1 stop23h 35m

$1,116

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-4:35 pm

1 stop28h 35m

$1,140

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-11:35 am

1 stop23h 35m

$1,145

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 6/10

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Fri 7/17

1:20 pm-5:55 pm

Nonstop15h 35m

$1,150

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 9/20

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Fri 9/25

1:20 pm-5:55 pm

Nonstop15h 35m

$1,168

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 10/2

9:20 pm-5:40 am

1 stop21h 20m

Washington, D.C. Dulles Intl

Sat 10/10

5:42 pm-3:20 pm

1 stop32h 38m

$1,206

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 6/8

7:35 pm-4:35 pm

1 stop34h 00m

Washington, D.C. Dulles Intl

Wed 7/15

7:53 pm-4:00 am

2 stops43h 07m

$1,220

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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, 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 October is also cheap. Prices for this month can be found on momondo for an average of $825.

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

Our data shows that Friday 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 $1,258. 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 $1,655.

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 from Incheon Intl Airport 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 $1,313 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 $878 on momondo.

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

You could potentially save up to 17% 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 May 2026, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 23% 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

$690

Fastest flight time

13h 35m

Direct flights

Mon, Tue, Wed, Thu and Sat
The best one-way flight to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the past 72 hours is $690. 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 $1,107.
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 on Monday, Tuesday, Wednesday, Thursday and Saturday. The only airline offering direct flights is AIR PREMIA.
Search flight deals

Frequently asked questions about flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

  • 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 $478Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
United AirlinesPriceFrom $508Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
DeltaPriceFrom $853Free CancellationRating
7.9
8,459 reviews
Search Delta flights
AIR PREMIAPriceFrom $915Free CancellationRating
8.1
90 reviews
Search AIR PREMIA flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,216 reviews
Search Korean Air 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 $1,573. Our users have rated Korean Air at 8.4/10.

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

    AIR PREMIA is also a popular choice for this route. AIR PREMIA flight deals for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport start from as low as $915 round-trip, depending on your selected dates, with average AIR PREMIA deals seen on momondo around $1,088. AIR PREMIA operates 3 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 8.1/10 across 90 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
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Towson
Fredericksburg
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Tysons
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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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