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Cheap flights from Washington, D.C. Dulles Intl Airport to Seoul from $426

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 3/6. 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 Washington, D.C. Dulles Intl Airport to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air China Logo
11:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Air China Logo
1:05 pm - 7:30 pm
ICN
-
IAD
19h 25m
1 stop
$873Air China
Tue, Mar 10 - Tue, Mar 31
Multiple Airlines Logo
11:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Multiple Airlines Logo
5:45 pm - 3:39 pm
ICN
-
IAD
34h 54m
2 stops
$881Multiple Airlines
Tue, Mar 10 - Tue, Apr 14
Multiple Airlines Logo
11:00 pm - 4:35 pm
IAD
-
ICN
28h 35m
1 stop
Multiple Airlines Logo
7:10 pm - 8:54 pm
ICN
-
IAD
38h 44m
2 stops
$893Multiple Airlines
Fri, Mar 13 - Mon, Mar 16
Multiple Airlines Logo
11:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Multiple Airlines Logo
7:10 pm - 8:54 pm
ICN
-
IAD
38h 44m
2 stops
$894Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Air China Logo
11:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Air China Logo
3:05 pm - 7:30 pm
ICN
-
IAD
41h 25m
1 stop
$898Air China
Tue, Mar 17 - Mon, Mar 23
Multiple Airlines Logo
11:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Multiple Airlines Logo
7:05 pm - 8:29 pm
ICN
-
IAD
38h 24m
1 stop
$900Multiple Airlines
Tue, Mar 17 - Tue, Apr 28
Multiple Airlines Logo
10:00 pm - 1:20 pm
IAD
-
ICN
25h 20m
1 stop
Multiple Airlines Logo
5:55 pm - 4:11 pm
ICN
-
IAD
59h 16m
2 stops
$902Multiple Airlines
Fri, Mar 6 - Mon, Mar 16
Multiple Airlines Logo
11:00 pm - 9:45 pm
IAD
-
ICN
33h 45m
1 stop
Multiple Airlines Logo
5:45 pm - 11:23 am
ICN
-
IAD
30h 38m
2 stops
$905Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
10:00 pm - 1:20 pm
IAD
-
ICN
25h 20m
1 stop
Multiple Airlines Logo
5:55 pm - 9:23 pm
ICN
-
IAD
40h 28m
2 stops
$907Multiple Airlines
Fri, Mar 6 - Mon, Mar 16
Air China Logo
11:00 pm - 11:35 am
IAD
-
ICN
23h 35m
1 stop
Air China Logo
1:05 pm - 7:30 pm
ICN
-
IAD
19h 25m
1 stop
$908Air China
Tue, Apr 7 - Tue, Apr 28

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

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight tickets
Turkish Airlines
Apr 21
IAD9:45 pmWashington, D.C. Dulles Intl
30h 55m
1 stop
ICN5:40 pmIncheon Intl
Apr 30
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,035
Turkish Airlines
Apr 20
IAD1:20 pmWashington, D.C. Dulles Intl
30h 15m
1 stop
ICN8:35 amIncheon Intl
May 12
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,059
Turkish Airlines
Feb 15
IAD9:15 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
ICN6:20 pmIncheon Intl
Mar 4
ICN12:10 amIncheon Intl
25h 35m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$1,069

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

Our best EVA Air deals on Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight tickets
EVA Air
Feb 3
IAD6:04 pmWashington, D.C. Dulles Intl
34h 41m
2 stops
ICN6:45 pmIncheon Intl
Feb 17
ICN11:40 amIncheon Intl
43h 40m
2 stops
IAD5:20 pmWashington, D.C. Dulles Intl
$1,168
EVA Air
Feb 7
IAD6:04 pmWashington, D.C. Dulles Intl
29h 26m
2 stops
ICN1:30 pmIncheon Intl
May 30
ICN7:45 pmIncheon Intl
24h 49m
2 stops
IAD7:34 amWashington, D.C. Dulles Intl
$1,202

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 January 29, 2026.
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

Tue 3/10

11:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Tue 3/31

1:05 pm-7:30 pm

1 stop19h 25m

$873

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/10

11:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Tue 4/14

5:45 pm-3:39 pm

2 stops34h 54m

$881

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 3/13

11:00 pm-4:35 pm

1 stop28h 35m

Incheon Intl

Mon 3/16

7:10 pm-8:54 pm

2 stops38h 44m

$893

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/10

11:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Tue 3/17

7:10 pm-8:54 pm

2 stops38h 44m

$894

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/17

11:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Mon 3/23

3:05 pm-7:30 pm

1 stop41h 25m

$898

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/17

11:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Tue 4/28

7:05 pm-8:29 pm

1 stop38h 24m

$900

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 3/6

10:00 pm-1:20 pm

1 stop25h 20m

Incheon Intl

Mon 3/16

5:55 pm-4:11 pm

2 stops59h 16m

$902

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 4/7

11:00 pm-9:45 pm

1 stop33h 45m

Incheon Intl

Tue 4/14

5:45 pm-11:23 am

2 stops30h 38m

$905

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 3/6

10:00 pm-1:20 pm

1 stop25h 20m

Incheon Intl

Mon 3/16

5:55 pm-9:23 pm

2 stops40h 28m

$907

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 4/7

11:00 pm-11:35 am

1 stop23h 35m

Incheon Intl

Tue 4/28

1:05 pm-7:30 pm

1 stop19h 25m

$908

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 January. Flight prices, which tend to average around $1,512, 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. Dulles Intl Airport during the month April is also very affordable. Most momondo users find prices during this month for around $1,528.

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 Tuesday when prices can be found for as low as $1,294. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,561. 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 morning 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 $1,360. Flying to Incheon Intl Airport in the morning 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 $1,554 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 $1,774 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 $1,396 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 January 2026, prices for Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flights are approximately 5% 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

$554

Fastest flight time

15h 10m

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 $554. 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 $1,131.
The fastest flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport takes 15h 10m
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 15h 10m 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 $317Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
DeltaPriceFrom $356Free CancellationRating
7.9
8,127 reviews
Search Delta flights
Air ChinaPriceFrom $591Free CancellationRating
7.2
138 reviews
Search Air China flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.1
501 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $791Free CancellationRating
7.3
4,208 reviews
Search Turkish Airlines flights
AIR PREMIAPriceFrom $807Free CancellationRating
8.3
78 reviews
Search AIR PREMIA flights
American AirlinesPriceFrom $877Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
Air CanadaPriceFrom $972Free CancellationRating
7.1
10,667 reviews
Search Air Canada flights
Korean AirPriceFrom $1,553Free CancellationRating
8.4
1,188 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 $1,553 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually $1,940 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

    $356 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 $1,809, however, with flight time and availability significantly affecting the price. Delta (7.9/10 from 8,127 user reviews) flies into Incheon Intl Airport from Washington, D.C. Dulles Intl Airport 7 times in an average week so prices can vary.

Traveling to a place near Seoul?

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

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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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