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Cheap flights from Washington, D.C. to Incheon Intl Airport from $444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Incheon Intl Airport departing on 2/25. 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 Washington, D.C. to Seoul

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. to Seoul that have been recently found on momondo from popular airlines, departing in the coming months.
6:45 am - 5:40 amBWI-ICN
32h 55m2 stops
5:00 pm - 5:00 amICN-BWI
25h 00m2 stops
$849Lufthansa
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:45 am - 5:40 amBWI-ICN
32h 55m2 stops
5:00 pm - 5:00 amICN-BWI
25h 00m2 stops
$854Lufthansa
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:00 am - 4:30 pmBWI-ICN
20h 30m1 stop
7:30 pm - 2:05 pmICN-BWI
31h 35m1 stop
$864Delta
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:18 am - 4:45 pmIAD-ICN
20h 27m1 stop
5:50 pm - 10:14 pmICN-IAD
17h 24m1 stop
$864American Airlines
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:00 am - 3:30 pmBWI-ICN
19h 30m1 stop
7:30 pm - 2:05 pmICN-BWI
31h 35m1 stop
$870Delta
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:18 am - 4:45 pmIAD-ICN
20h 27m1 stop
5:50 pm - 10:14 pmICN-IAD
17h 24m1 stop
$870American Airlines
Find Deal
Thu, Mar 6 - Wed, Mar 19
8:17 am - 6:25 pmIAD-ICN
20h 08m1 stop
4:55 pm - 3:13 pmICN-IAD
35h 18m2 stops
$976Air Canada
Find Deal
Thu, Mar 6 - Wed, Mar 19
8:17 am - 6:25 pmIAD-ICN
20h 08m1 stop
4:55 pm - 11:31 amICN-IAD
31h 36m2 stops
$983Air Canada
Find Deal
Thu, Mar 6 - Wed, Mar 19
6:00 am - 2:10 pmBWI-ICN
19h 10m1 stop
4:25 pm - 9:56 pmICN-BWI
18h 31m1 stop
$1,072Korean Air
Find Deal
Tue, Apr 15 - Tue, May 6
6:00 am - 3:50 pmBWI-ICN
19h 50m1 stop
7:25 pm - 12:30 amICN-BWI
18h 05m1 stop
$1,081Korean Air
Find Deal
Mon, Mar 3 - Mon, Mar 10

Lufthansa flights from Washington, D.C. to Incheon Intl Airport

Our best Lufthansa deals on Washington, D.C. to Incheon Intl Airport flight tickets
Lufthansa
Mar 6
BWI6:45 amBaltimore/Washington
32h 55m
2 stops
ICN5:40 amIncheon Intl
Mar 19
ICN5:00 pmIncheon Intl
25h 00m
2 stops
BWI5:00 amBaltimore/Washington
Lufthansa
Mar 6
BWI6:45 amBaltimore/Washington
32h 55m
2 stops
ICN5:40 amIncheon Intl
Mar 19
ICN5:00 pmIncheon Intl
25h 00m
2 stops
BWI5:00 amBaltimore/Washington
Lufthansa
Mar 6
BWI6:15 amBaltimore/Washington
20h 00m
1 stop
ICN4:15 pmIncheon Intl
Mar 19
ICN5:00 pmIncheon Intl
26h 53m
1 stop
BWI6:53 amBaltimore/Washington

KLM flights from Washington, D.C. to Incheon Intl Airport

Our best KLM deals on Washington, D.C. to Incheon Intl Airport flight tickets
KLM
Mar 6
BWI6:00 amBaltimore/Washington
19h 30m
1 stop
ICN3:30 pmIncheon Intl
Mar 19
ICN7:25 pmIncheon Intl
18h 05m
1 stop
BWI12:30 amBaltimore/Washington
KLM
Feb 6
IAD6:30 pmWashington, D.C. Dulles Intl
32h 25m
2 stops
ICN4:55 pmIncheon Intl
Feb 8
ICN11:05 pmIncheon Intl
31h 10m
2 stops
IAD4:15 pmWashington, D.C. Dulles Intl

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

The cheapest month to fly to Incheon Intl Airport from Washington, D.C. is in January. Flight prices, which tend to average around $1,087, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of January, then departing from Washington, D.C. during the month November is also very affordable. Most momondo users find prices during this month for around $1,090.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Washington, D.C. to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,624. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,801. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the evening is the cheapest time of day to fly from Washington, D.C. to Incheon Intl Airport when you can find flight prices for as low as $1,169. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,792 on average. Flights to Incheon Intl Airport from Washington, D.C. at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Washington, D.C. when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,572 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Washington, D.C. for as low as $1,339 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to Incheon Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of February 2025, prices for Washington, D.C. to Incheon Intl Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Incheon Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Incheon Intl Airport (WAS to ICN) flight deals and tips

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

Best Price Found

$444

Fastest flight time

17h 30m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from Washington, D.C. in the past 72 hours is $444. The best round-trip flight deal from Washington, D.C. to Incheon Intl Airport found on momondo in the last 72 hours is $849.
The fastest flight from Washington, D.C. to Incheon Intl Airport takes 17h 30m
Direct flights go from Washington, D.C. to Incheon Intl Airport every day.

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

    The straight-line distance from Washington, D.C. to Incheon Intl is 6949.0 mi. Flights usually cover this in 17h 30m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The travel and health documents you'll need for your trip to Incheon Intl Airport 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 Incheon Intl Airport. 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 Washington, D.C. to Incheon Intl Airport?

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


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

Compare and see reviews for airlines that fly from Washington, D.C. to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $864Free CancellationRating
7.0
8,667 reviews
Search Air Canada flights
American AirlinesPriceFrom $876Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $883Free CancellationRating
8.0
8,415 reviews
Search Delta flights
United AirlinesPriceFrom $901Free CancellationRating
7.4
8,887 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $969Free CancellationRating
7.3
3,896 reviews
Search Turkish Airlines flights
Korean AirPriceFrom $1,078Free CancellationRating
8.4
1,040 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $1,407Free CancellationRating
8.2
455 reviews
Search Asiana Airlines flights
Air FrancePriceFrom $1,583Free CancellationRating
7.4
1,469 reviews
Search Air France flights
KLMPriceFrom $1,598Free CancellationRating
7.8
1,334 reviews
Search KLM flights
  • Korean Air Flights From Washington, D.C. to Incheon Intl Airport

    Across 7 Korean Air flights from Washington, D.C. to Incheon Intl Airport this week, the average price was $1,874, with the best Korean Air deals starting from $1,078 round-trip. 1,040 users have rated Korean Air on momondo, with an average score of 8.4/10.

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

    $883 is the best Delta flight deal from Washington, D.C. to Incheon Intl Airport found on momondo over the last 72 hours. The average Delta ticket price found was closer to $2,013, however, with flight time and availability significantly affecting the price. Delta (8.0/10 from 8,415 user reviews) flies into Incheon Intl Airport from Washington, D.C. 7 times in an average week so prices can vary.


Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Suwon
Seongnam
Daejeon
Anyang

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Seoul. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seoul from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Washington, D.C. and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to Seoul 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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