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Cheap flights from Incheon Intl Airport to Washington, D.C. from $449

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 5/6. 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

These are some of the best round-trip flight deals from Incheon Intl Airport to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.
12:45 pm - 1:05 amICN-IAD
26h 20m1 stop
6:30 am - 3:15 pmIAD-ICN
19h 45m1 stop
$733United Airlines
Find Deal
Thu, Mar 6 - Wed, Mar 19
11:30 am - 11:44 amICN-BWI
37h 14m2 stops
6:15 am - 4:20 amBWI-ICN
33h 05m2 stops
$735United Airlines
Find Deal
Tue, Apr 15 - Tue, Apr 29
6:50 pm - 8:50 amICN-IAD
28h 00m2 stops
8:14 pm - 3:30 pmIAD-ICN
30h 16m2 stops
$782American Airlines
Find Deal
Wed, Mar 5 - Sat, Apr 5
6:50 pm - 10:33 pmICN-IAD
17h 43m1 stop
5:13 pm - 3:30 pmIAD-ICN
33h 17m1 stop
$786American Airlines
Find Deal
Wed, Mar 5 - Sat, Apr 5
7:30 pm - 11:53 pmICN-BWI
18h 23m1 stop
6:00 am - 3:30 pmBWI-ICN
20h 30m1 stop
$867Delta
Find Deal
Thu, Mar 6 - Wed, Mar 19
7:30 pm - 11:53 pmICN-BWI
18h 23m1 stop
6:00 am - 3:30 pmBWI-ICN
20h 30m1 stop
$869Delta
Find Deal
Thu, Mar 6 - Wed, Mar 19
5:45 pm - 4:27 pmICN-IAD
35h 42m1 stop
10:11 pm - 4:05 pmIAD-ICN
52h 54m2 stops
$874Air Canada
Find Deal
Mon, Jul 21 - Sat, Jul 26
5:45 pm - 4:17 pmICN-IAD
35h 32m1 stop
5:30 pm - 4:05 pmIAD-ICN
33h 35m1 stop
$878Air Canada
Find Deal
Wed, Jun 18 - Wed, Aug 13
7:25 pm - 10:58 pmICN-BWI
17h 33m1 stop
5:00 pm - 3:50 pmBWI-ICN
33h 50m1 stop
$1,059Korean Air
Find Deal
Sat, Mar 8 - Sat, Mar 15
6:40 pm - 11:59 pmICN-BWI
18h 19m1 stop
6:00 am - 2:10 pmBWI-ICN
19h 10m1 stop
$1,074Korean Air
Find Deal
Tue, Apr 15 - Tue, Apr 29

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

Our best United Airlines deals on Incheon Intl Airport to Washington, D.C. flight tickets
United Airlines
Mar 6
ICN12:45 pmIncheon Intl
26h 20m
1 stop
IAD1:05 amWashington, D.C. Dulles Intl
Mar 19
IAD6:30 amWashington, D.C. Dulles Intl
19h 45m
1 stop
ICN3:15 pmIncheon Intl
United Airlines
Mar 10
ICN11:45 amIncheon Intl
25h 14m
2 stops
IAD11:59 pmWashington, D.C. Dulles Intl
Apr 10
IAD6:30 amWashington, D.C. Dulles Intl
19h 30m
1 stop
ICN3:00 pmIncheon Intl
United Airlines
Mar 20
ICN5:00 pmIncheon Intl
25h 16m
2 stops
IAD5:16 amWashington, D.C. Dulles Intl
Apr 7
IAD10:12 pmWashington, D.C. Dulles Intl
27h 48m
2 stops
ICN3:00 pmIncheon Intl

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

Our best American Airlines deals on Incheon Intl Airport to Washington, D.C. flight tickets
American Airlines
Mar 5
ICN6:50 pmIncheon Intl
28h 00m
2 stops
IAD8:50 amWashington, D.C. Dulles Intl
Apr 5
IAD8:14 pmWashington, D.C. Dulles Intl
30h 16m
2 stops
ICN3:30 pmIncheon Intl
American Airlines
Mar 5
ICN6:50 pmIncheon Intl
17h 43m
1 stop
IAD10:33 pmWashington, D.C. Dulles Intl
Apr 5
IAD5:13 pmWashington, D.C. Dulles Intl
33h 17m
1 stop
ICN3:30 pmIncheon Intl
American Airlines
Mar 1
ICN6:50 pmIncheon Intl
17h 43m
1 stop
IAD10:33 pmWashington, D.C. Dulles Intl
Mar 3
IAD5:13 pmWashington, D.C. Dulles Intl
33h 32m
1 stop
ICN4:45 pmIncheon Intl

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Incheon Intl Airport to Washington, D.C.

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.?

What is the cheapest month to fly to Washington, D.C.?

The month of December is, on average, the cheapest month to fly to Washington, D.C. from Incheon Intl Airport, with most prices found around $906. If you’re not able to fly to Washington, D.C. in December, then November is your next best option. Flight prices from Incheon Intl Airport to Washington, D.C. during November average around $947.

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

On average, the least expensive day to fly to Washington, D.C. from Incheon Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $1,499. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Incheon Intl Airport to Washington, D.C. for around $2,158.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Incheon Intl Airport to Washington, D.C. when you can find flight prices for as low as $919. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,609. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Incheon Intl to Washington, D.C. flight route?

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Incheon Intl - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Incheon Intl Airport when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $1,464 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Incheon Intl Airport for as low as $1,095 on momondo.

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

There are 4 cabin classes available to choose from on Incheon Intl to Washington, D.C. 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. flight prices changed over time?

As of February 2025, prices for Incheon Intl Airport to Washington, D.C. flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Incheon Intl Airport to Washington, D.C. 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. (ICN to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Washington, D.C.

Best Price Found

$449

Fastest flight time

16h 22m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Incheon Intl Airport in the past 72 hours is $449. The best round-trip flight deal from Incheon Intl Airport to Washington, D.C. found on momondo in the last 72 hours is $733.
The fastest flight from Incheon Intl Airport to Washington, D.C. takes 16h 22m
Direct flights go from Incheon Intl Airport to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • How far is Incheon Intl to Washington, D.C. by plane?

    The distance between Incheon Intl and Washington, D.C. is about 6949.0 mi. By plane, this route typically takes 16h 22m.

  • When did momondo last update prices for flights from Incheon Intl Airport to Washington, D.C.?

    Prices for flights from Incheon Intl Airport to Washington, D.C. are refreshed on a daily basis.

  • How many operators does momondo search for flights from Incheon Intl Airport to Washington, D.C.?

  • How old do you have to be to fly from Incheon Intl Airport to Washington, D.C.?

    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..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek 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.?

  • What is the most popular airline from Incheon Intl Airport to Washington, D.C.?


Best airlines flying from Incheon Intl Airport to Washington, D.C.

Compare and see reviews for airlines that fly from Incheon Intl Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $687Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $688Free CancellationRating
7.0
8,748 reviews
Search Air Canada flights
United AirlinesPriceFrom $726Free CancellationRating
7.4
8,765 reviews
Search United Airlines flights
Korean AirPriceFrom $1,053Free CancellationRating
8.4
1,039 reviews
Search Korean Air flights
DeltaPriceFrom $1,313Free CancellationRating
8.0
8,219 reviews
Search Delta flights
  • Korean Air Flights From Incheon Intl Airport to Washington, D.C.

    Korean Air flies from Incheon Intl Airport to Washington, D.C. around 7 times per week, with 1,039 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Incheon Intl Airport to Washington, D.C. in the last 72 hours was $1,053 (round-trip), much lower than the average airfare cost of $1,562 for Korean Air flights on this route.

  • Delta Flights From Incheon Intl Airport to Washington, D.C.

    Another popular option for Incheon Intl Airport to Washington, D.C. flights is Delta (8.0/10, 8,219 ratings). Delta flies from Incheon Intl Airport to Washington, D.C. around 7 times per week, with deals starting from $1,313 round-trip and rising to an average price of around $1,667.


Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Gettysburg
Laurel
National Harbor
Silver Spring
Woodbridge
Fredericksburg
Manassas
Tysons
Waldorf
Gaithersburg
Linthicum Heights
Glen Burnie
Rockville
Fairfax
Towson
Hanover
Reston
Hyattsville

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Seoul with this policy.

How can momondo help me find flights from Seoul to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seoul to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seoul to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.