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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 10/9. 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

United Airlines Logo
11:30 am - 8:15 amICN-IAD
33h 45m1 stop
United Airlines Logo
12:25 pm - 10:15 pmIAD-ICN
20h 50m1 stop
$744United Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 2
Hawaiian Airlines Logo
8:35 pm - 7:33 amICN-IAD
23h 58m1 stop
Hawaiian Airlines Logo
6:25 am - 6:35 pmIAD-ICN
23h 10m1 stop
$823Hawaiian Airlines
Find Deal
Mon, Sep 22 - Thu, Oct 23
Air Canada Logo
5:55 pm - 11:23 amICN-IAD
30h 28m2 stops
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
$826Air Canada
Find Deal
Fri, Oct 31 - Fri, Nov 7
Asiana Airlines Logo
6:20 pm - 7:33 amICN-IAD
26h 13m1 stop
Asiana Airlines Logo
6:13 pm - 5:20 amIAD-ICN
21h 07m1 stop
$836Asiana Airlines
Find Deal
Tue, Sep 16 - Tue, Nov 18
Logo
8:35 pm - 7:33 amICN-IAD
23h 58m1 stop
Logo
8:53 am - 7:00 pmIAD-ICN
45h 07m2 stops
$838
Find Deal
Sat, Sep 27 - Wed, Oct 15
Logo
6:20 pm - 12:23 amICN-IAD
19h 03m1 stop
Logo
6:25 am - 5:55 pmIAD-ICN
22h 30m1 stop
$844
Find Deal
Sat, Oct 18 - Sat, Oct 25
Hawaiian Airlines Logo
8:35 pm - 4:40 pmICN-IAD
34h 05m1 stop
Hawaiian Airlines Logo
7:43 am - 6:35 pmIAD-ICN
20h 52m1 stop
$846Hawaiian Airlines
Find Deal
Mon, Nov 3 - Sat, Nov 8
Air Canada Logo
5:45 pm - 6:31 amICN-IAD
25h 46m1 stop
Air Canada Logo
5:37 pm - 4:15 pmIAD-ICN
33h 38m1 stop
$851Air Canada
Find Deal
Tue, Sep 9 - Mon, Sep 22
Alaska Airlines Logo
8:35 pm - 7:33 amICN-IAD
23h 58m1 stop
Alaska Airlines Logo
8:53 am - 6:35 pmIAD-ICN
20h 42m1 stop
$866Alaska Airlines
Find Deal
Sat, Sep 20 - Thu, Oct 23
Alaska Airlines Logo
8:35 pm - 7:33 amICN-IAD
23h 58m1 stop
Alaska Airlines Logo
7:00 am - 6:35 pmIAD-ICN
21h 35m1 stop
$873Alaska Airlines
Find Deal
Sat, Sep 20 - Sun, Dec 7

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 31
ICN5:55 pmIncheon Intl
30h 28m
2 stops
IAD11:23 amWashington, D.C. Dulles Intl
Nov 7
IAD9:00 amWashington, D.C. Dulles Intl
19h 25m
1 stop
ICN6:25 pmIncheon Intl
$826
Find similar
Air Canada
Sep 9
ICN5:45 pmIncheon Intl
25h 46m
1 stop
IAD6:31 amWashington, D.C. Dulles Intl
Sep 22
IAD5:37 pmWashington, D.C. Dulles Intl
33h 38m
1 stop
ICN4:15 pmIncheon Intl
$851
Find similar
Air Canada
Jan 12
ICN8:10 pmIncheon Intl
28h 51m
2 stops
IAD11:01 amWashington, D.C. Dulles Intl
Jan 20
IAD6:30 pmWashington, D.C. Dulles Intl
32h 40m
2 stops
ICN5:10 pmIncheon Intl
$853
Find similar

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
Oct 1
ICN11:30 amIncheon Intl
33h 45m
1 stop
IAD8:15 amWashington, D.C. Dulles Intl
Oct 2
IAD12:25 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
ICN10:15 pmIncheon Intl
$744
Find similar
United Airlines
Aug 27
ICN6:30 pmIncheon Intl
34h 15m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
Aug 29
IAD8:35 amWashington, D.C. Dulles Intl
41h 25m
1 stop
ICN3:00 pmIncheon Intl
$855
Find similar
United Airlines
Aug 27
ICN6:30 pmIncheon Intl
34h 15m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
Aug 29
IAD8:35 amWashington, D.C. Dulles Intl
41h 25m
1 stop
ICN3:00 pmIncheon Intl
$857
Find similar

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, 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 $1,475. When flying out on a Wednesday, 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 $1,576.

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 $1,506 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 $1,404 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 $1,016 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 July 2025, prices for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 16% 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

$423

Fastest flight time

19h 03m

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 $423. 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 $744.
The fastest flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport takes 19h 03m
Direct flights go from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport every day.
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  • 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 19h 03m.

  • 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 $688Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $724Free CancellationRating
7.4
8,863 reviews
Search United Airlines flights
Air CanadaPriceFrom $873Free CancellationRating
7.1
9,734 reviews
Search Air Canada flights
Korean AirPriceFrom $1,223Free CancellationRating
8.4
1,109 reviews
Search Korean Air flights
DeltaPriceFrom $1,313Free CancellationRating
8.0
7,957 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 $1,223 round-trip, up to an average price of $1,491. 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 $1,313 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,577. Delta operates 7 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 8.0/10 across 7,957 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
Arlington
National Harbor
Winchester
Laurel
Woodbridge
Silver Spring
Tysons
Waldorf
Fredericksburg
Manassas
Harpers Ferry
Gaithersburg
Rockville
Towson
Fairfax
Colonial Beach
Glen Burnie
Linthicum Heights

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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