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Cheap flights from Washington, D.C. Dulles Intl Airport to Seoul from $419

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. Dulles Intl Airport to Seoul departing on 11/10. 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. Dulles Intl Airport to Seoul

Cheap round-trip flights

Multiple Airlines Logo
6:45 pm - 7:40 pmIAD-ICN
35h 55m1 stop
Multiple Airlines Logo
6:20 pm - 3:17 pmICN-IAD
33h 57m2 stops
$856Multiple Airlines
Find Deal
Fri, Oct 17 - Fri, Oct 24
Multiple Airlines Logo
6:00 am - 5:20 amIAD-ICN
33h 20m2 stops
Multiple Airlines Logo
8:35 pm - 6:18 amICN-IAD
23h 43m1 stop
$868Multiple Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 23
Multiple Airlines Logo
6:00 am - 5:20 amIAD-ICN
33h 20m2 stops
Multiple Airlines Logo
9:00 pm - 6:18 amICN-IAD
23h 18m1 stop
$874Multiple Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
Multiple Airlines Logo
6:45 pm - 7:40 pmIAD-ICN
35h 55m1 stop
Multiple Airlines Logo
8:35 pm - 12:23 amICN-IAD
16h 48m1 stop
$903Multiple Airlines
Find Deal
Fri, Oct 17 - Fri, Oct 24
Multiple Airlines Logo
6:00 am - 4:10 pmIAD-ICN
44h 10m2 stops
Multiple Airlines Logo
8:35 pm - 6:18 amICN-IAD
23h 43m1 stop
$905Multiple Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 23
Air Canada Logo
5:15 pm - 4:05 pmIAD-ICN
33h 50m2 stops
Air Canada Logo
5:45 pm - 9:38 amICN-IAD
28h 53m2 stops
$950Air Canada
Find Deal
Sat, Oct 4 - Tue, Oct 14
Air Canada Logo
9:45 am - 5:10 pmIAD-ICN
41h 25m2 stops
Air Canada Logo
6:55 pm - 4:21 pmICN-IAD
35h 26m2 stops
$959Air Canada
Find Deal
Wed, Nov 5 - Wed, Nov 12
Turkish Airlines Logo
9:40 pm - 5:40 pmIAD-ICN
31h 00m1 stop
Turkish Airlines Logo
12:10 am - 12:45 pmICN-IAD
25h 35m1 stop
$1,011Turkish Airlines
Find Deal
Wed, Oct 22 - Mon, Oct 27
China Eastern Logo
12:09 pm - 11:55 amIAD-ICN
33h 46m2 stops
China Eastern Logo
8:55 am - 7:08 pmICN-IAD
24h 13m2 stops
$1,021China Eastern
Find Deal
Wed, Nov 5 - Tue, Nov 11
Turkish Airlines Logo
10:10 pm - 6:20 pmIAD-ICN
31h 10m1 stop
Turkish Airlines Logo
12:10 am - 11:45 amICN-IAD
25h 35m1 stop
$1,029Turkish Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 5

Air Canada flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight tickets
Air Canada
Oct 4
IAD5:15 pmWashington, D.C. Dulles Intl
33h 50m
2 stops
ICN4:05 pmIncheon Intl
Oct 14
ICN5:45 pmIncheon Intl
28h 53m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
$950
Find similar
Air Canada
Nov 5
IAD9:45 amWashington, D.C. Dulles Intl
41h 25m
2 stops
ICN5:10 pmIncheon Intl
Nov 12
ICN6:55 pmIncheon Intl
35h 26m
2 stops
IAD4:21 pmWashington, D.C. Dulles Intl
$959
Find similar
Air Canada
Oct 4
IAD5:15 pmWashington, D.C. Dulles Intl
33h 50m
2 stops
ICN4:05 pmIncheon Intl
Oct 14
ICN7:05 pmIncheon Intl
27h 33m
1 stop
IAD9:38 amWashington, D.C. Dulles Intl
$963
Find similar

Cathay Pacific flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport

Our best Cathay Pacific deals on Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight tickets
Cathay Pacific
Sep 22
IAD5:40 pmWashington, D.C. Dulles Intl
30h 00m
2 stops
ICN12:40 pmIncheon Intl
Oct 15
ICN3:10 pmIncheon Intl
56h 41m
2 stops
IAD10:51 amWashington, D.C. Dulles Intl
$1,149
Find similar
Cathay Pacific
Sep 27
IAD5:40 pmWashington, D.C. Dulles Intl
38h 30m
2 stops
ICN9:10 pmIncheon Intl
Nov 5
ICN1:50 pmIncheon Intl
46h 42m
2 stops
IAD10:32 pmWashington, D.C. Dulles Intl
$1,239
Find similar
Cathay Pacific
Sep 22
IAD5:40 pmWashington, D.C. Dulles Intl
31h 25m
2 stops
ICN2:05 pmIncheon Intl
Oct 15
ICN1:40 pmIncheon Intl
58h 11m
2 stops
IAD10:51 amWashington, D.C. Dulles Intl
$1,250
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Incheon 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 September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 10/17

6:45 pm-7:40 pm

1 stop35h 55m

Incheon Intl

Fri 10/24

6:20 pm-3:17 pm

2 stops33h 57m

$856

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 11/17

6:00 am-5:20 am

2 stops33h 20m

Incheon Intl

Sun 11/23

8:35 pm-6:18 am

1 stop23h 43m

$868

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 11/17

6:00 am-5:20 am

2 stops33h 20m

Incheon Intl

Mon 11/24

9:00 pm-6:18 am

1 stop23h 18m

$874

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 10/17

6:45 pm-7:40 pm

1 stop35h 55m

Incheon Intl

Fri 10/24

8:35 pm-12:23 am

1 stop16h 48m

$903

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 11/16

6:00 am-4:10 pm

2 stops44h 10m

Incheon Intl

Sun 11/23

8:35 pm-6:18 am

1 stop23h 43m

$905

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 10/4

5:15 pm-4:05 pm

2 stops33h 50m

Incheon Intl

Tue 10/14

5:45 pm-9:38 am

2 stops28h 53m

$950

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 11/5

9:45 am-5:10 pm

2 stops41h 25m

Incheon Intl

Wed 11/12

6:55 pm-4:21 pm

2 stops35h 26m

$959

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 10/22

9:40 pm-5:40 pm

1 stop31h 00m

Incheon Intl

Mon 10/27

12:10 am-12:45 pm

1 stop25h 35m

$1,011

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 11/5

12:09 pm-11:55 am

2 stops33h 46m

Incheon Intl

Tue 11/11

8:55 am-7:08 pm

2 stops24h 13m

$1,021

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 10/28

10:10 pm-6:20 pm

1 stop31h 10m

Incheon Intl

Wed 11/5

12:10 am-11:45 am

1 stop25h 35m

$1,029

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 Washington, D.C. Dulles Intl Airport 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Incheon Intl Airport?

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport is in November. Flight prices, which tend to average around $1,074, 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 November, then departing from Washington, D.C. Dulles Intl Airport during the month April is also very affordable. Most momondo users find prices during this month for around $1,502.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,432. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,660. 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. Dulles Intl Airport 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 $1,656 on average. Flights to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Washington, D.C. Dulles Intl to Incheon Intl for the best Washington, D.C. Dulles Intl - 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. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,684 when searching 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. Dulles Intl Airport for as low as $1,244 on momondo.

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

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

As of September 2025, prices for Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flights are approximately 28% cheaper when compared to flights at the same time last year.

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

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

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

Best Price Found

$555

Fastest flight time

15h 25m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $555. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport found on momondo in the last 72 hours is $1,094.
The fastest flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport takes 15h 25m
Direct flights go from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport every day.
Search flight deals

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

    Incheon Intl is 6939.0 mi away from Washington, D.C. Dulles Intl. Typically, this will take 17h 40m by plane in normal conditions.

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

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

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

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $367Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Air ChinaPriceFrom $591Free CancellationRating
7.3
101 reviews
Search Air China flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.2
481 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $800Free CancellationRating
7.3
3,965 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $864Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $876Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $1,123Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Korean AirPriceFrom $1,535Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights

  • Korean Air Flights From Washington, D.C. Dulles Intl Airport to Incheon Intl Airport

    Korean Air flight deals from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport start from $1,535 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually $1,885 round-trip - but some users have found much cheaper deals with momondo.

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

    $1,123 is the best Delta flight deal from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport found on momondo over the last 72 hours. The average Delta ticket price found was closer to $1,917, however, with flight time and availability significantly affecting the price. Delta (7.9/10 from 7,961 user reviews) flies into Incheon Intl Airport from Washington, D.C. Dulles Intl Airport 7 times in an average week so prices can vary.

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

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

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

Once you have performed a search for Washington, D.C. to Seoul 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 Washington, D.C. to Seoul right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Seoul 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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