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Cheap flights from Incheon Intl Airport to Washington, D.C. from $460

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 8/29. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 Canada Logo
5:45 pm - 6:30 am-
25h 45m
Air Canada Logo
8:29 am - 4:05 pm-
18h 36m
$661Air Canada
Mon, Sep 14 - Mon, Sep 21
Air Canada Logo
6:55 pm - 8:23 pm-
39h 28m
Air Canada Logo
1:20 pm - 5:10 pm-
37h 50m
$661Air Canada
Thu, Dec 17 - Tue, Feb 23
American Airlines Logo
6:50 pm - 6:23 pm-
36h 33m
American Airlines Logo
2:42 pm - 4:25 pm-
35h 43m
$863American Airlines
Fri, Oct 30 - Mon, Nov 2
American Airlines Logo
6:50 pm - 9:16 pm-
39h 26m
American Airlines Logo
2:42 pm - 4:25 pm-
35h 43m
$863American Airlines
Fri, Oct 30 - Mon, Nov 2
AIR PREMIA Logo
10:00 am - 10:50 am-
13h 50mnonstop
AIR PREMIA Logo
1:20 pm - 5:55 pm-
15h 35mnonstop
$1,037AIR PREMIA
Sun, Oct 4 - Sun, Oct 11
AIR PREMIA Logo
9:05 pm - 8:35 pm-
13h 30mnonstop
AIR PREMIA Logo
11:35 pm - 5:25 am-
15h 50mnonstop
$1,037AIR PREMIA
Sun, Nov 8 - Mon, Nov 16
United Airlines Logo
6:00 pm - 9:27 pm-
17h 27m
United Airlines Logo
2:36 pm - 5:40 am-
25h 04m
$1,047United Airlines
Sat, Jan 30 - Sun, Feb 7
United Airlines Logo
11:30 am - 7:23 pm-
20h 53m
United Airlines Logo
6:42 am - 3:00 pm-
19h 18m
$1,047United Airlines
Wed, Sep 2 - Wed, Sep 9
Delta Logo
10:15 am - 9:50 am-
13h 35mnonstop
Delta Logo
6:30 pm - 5:45 pm-
33h 15m
$1,272Delta
Wed, Dec 23 - Tue, Feb 2
Delta Logo
10:25 am - 11:05 am-
13h 40mnonstop
Delta Logo
6:32 pm - 5:45 pm-
33h 13m
$1,272Delta
Mon, Sep 28 - Tue, Nov 3

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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
Dec 23
ICN6:55 pmIncheon Intl
30h 06m
2 stops
IAD11:01 amWashington, D.C. Dulles Intl
Jan 31
IAD1:20 pmWashington, D.C. Dulles Intl
37h 50m
2 stops
ICN5:10 pmIncheon Intl
$661
Air Canada
Sep 28
ICN5:45 pmIncheon Intl
30h 28m
2 stops
IAD11:13 amWashington, D.C. Dulles Intl
Nov 3
IAD1:19 pmWashington, D.C. Dulles Intl
37h 51m
2 stops
ICN5:10 pmIncheon Intl
$664
Air Canada
Sep 14
ICN5:45 pmIncheon Intl
30h 28m
2 stops
IAD11:13 amWashington, D.C. Dulles Intl
Sep 21
IAD8:29 amWashington, D.C. Dulles Intl
18h 36m
1 stop
ICN4:05 pmIncheon Intl
$665

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
Aug 5
ICN4:50 pmIncheon Intl
29h 34m
2 stops
IAD9:24 amWashington, D.C. Dulles Intl
Sep 2
IAD6:42 amWashington, D.C. Dulles Intl
19h 18m
1 stop
ICN3:00 pmIncheon Intl
$1,056
United Airlines
Aug 5
ICN4:50 pmIncheon Intl
21h 05m
1 stop
IAD12:55 amWashington, D.C. Dulles Intl
Aug 12
IAD6:42 amWashington, D.C. Dulles Intl
19h 18m
1 stop
ICN3:00 pmIncheon Intl
$1,224
United Airlines
Aug 7
ICN8:25 amIncheon Intl
25h 36m
2 stops
IAD9:01 pmWashington, D.C. Dulles Intl
Aug 8
IAD10:20 pmWashington, D.C. Dulles Intl
27h 40m
2 stops
ICN3:00 pmIncheon Intl
$1,574

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 August 4, 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

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/14

5:45 pm-6:30 am

1 stop25h 45m

Washington, D.C. Dulles Intl

Mon 9/21

8:29 am-4:05 pm

1 stop18h 36m

$661

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 12/17

6:55 pm-8:23 pm

2 stops39h 28m

Washington, D.C. Dulles Intl

Tue 2/23

1:20 pm-5:10 pm

2 stops37h 50m

$661

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 10/30

6:50 pm-6:23 pm

1 stop36h 33m

Washington, D.C. Dulles Intl

Mon 11/2

2:42 pm-4:25 pm

1 stop35h 43m

$863

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 10/30

6:50 pm-9:16 pm

2 stops39h 26m

Washington, D.C. Dulles Intl

Mon 11/2

2:42 pm-4:25 pm

1 stop35h 43m

$863

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 10/4

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Sun 10/11

1:20 pm-5:55 pm

Nonstop15h 35m

$1,037
Quickest round-trip

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 11/8

9:05 pm-8:35 pm

Nonstop13h 30m

Washington, D.C. Dulles Intl

Mon 11/16

11:35 pm-5:25 am

Nonstop15h 50m

$1,037

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sat 1/30

6:00 pm-9:27 pm

1 stop17h 27m

Washington, D.C. Dulles Intl

Sun 2/7

2:36 pm-5:40 am

1 stop25h 04m

$1,047

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/2

11:30 am-7:23 pm

2 stops20h 53m

Washington, D.C. Dulles Intl

Wed 9/9

6:42 am-3:00 pm

1 stop19h 18m

$1,047

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 12/23

10:15 am-9:50 am

Nonstop13h 35m

Washington, D.C. Dulles Intl

Tue 2/2

6:30 pm-5:45 pm

1 stop33h 15m

$1,272

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/28

10:25 am-11:05 am

Nonstop13h 40m

Washington, D.C. Dulles Intl

Tue 11/3

6:32 pm-5:45 pm

1 stop33h 13m

$1,272

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,226 to $1,593.
The lowest price recently found on this route was $661.

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 $994.

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 $1,811.

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 $1,308 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 $964 on momondo.

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

There are 4 cabin classes available to choose from on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport 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?

No. A direct flight is the cheapest option for a flight between Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.

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

As of August 2026, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 30% 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

$437

Fastest flight time

13h 30m

Direct flights

Mon, Tue, Thu, Fri and Sat
The best one-way flight to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the past 72 hours is $437. 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 $1,070.
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 on Monday, Tuesday, Thursday, Friday 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 30m.

  • 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
11,851 reviews
Search American Airlines flights
United AirlinesPriceFrom $508Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
DeltaPriceFrom $853Free CancellationRating
7.8
8,484 reviews
Search Delta flights
AIR PREMIAPriceFrom $876Free CancellationRating
8.1
102 reviews
Search AIR PREMIA flights
Korean AirPriceFrom $1,260Free CancellationRating
8.4
1,222 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 $1,260 round-trip, up to an average price of $1,648. 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 $876 round-trip, depending on your selected dates, with average AIR PREMIA deals seen on momondo around $1,171. AIR PREMIA operates 4 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 8.1/10 across 102 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
Arlington
Gettysburg
Winchester
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Sterling
Colonial Beach
Springfield
Fairfax
Tysons
Edgewood

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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.

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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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