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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 3/20. 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
7:05 pm - 7:40 pm
ICN
-
IAD
37h 35m
2 stops
$882Multiple Airlines
Tue, Mar 10 - Tue, Mar 31
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
$883Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Air China Logo
10:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Air China Logo
1:10 pm - 7:30 pm
ICN
-
IAD
19h 20m
1 stop
$898Air China
Tue, Mar 3 - Fri, Mar 13
Multiple Airlines Logo
10:00 pm - 11:40 am
IAD
-
ICN
23h 40m
1 stop
Multiple Airlines Logo
5:55 pm - 9:23 pm
ICN
-
IAD
40h 28m
2 stops
$901Multiple Airlines
Fri, Mar 6 - Mon, Mar 16
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
$902Multiple Airlines
Fri, Mar 6 - Mon, Mar 16
Air China Logo
11:00 pm - 1:05 pm
IAD
-
GMP
25h 05m
1 stop
Air China Logo
8:40 am - 7:30 pm
GMP
-
IAD
23h 50m
1 stop
$1,264Air China
Tue, Mar 10 - Tue, Mar 17
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
ANA Logo
7:55 pm - 2:03 pm
GMP
-
IAD
31h 08m
2 stops
$1,515ANA
Tue, Apr 7 - Tue, Jul 7
ANA Logo
1:10 pm - 11:05 am
IAD
-
GMP
32h 55m
2 stops
ANA Logo
7:55 pm - 2:03 pm
GMP
-
IAD
31h 08m
2 stops
$1,519ANA
Tue, Apr 7 - Tue, Jul 7
ANA Logo
11:10 am - 10:30 pm
IAD
-
GMP
21h 20m
1 stop
ANA Logo
7:50 pm - 9:10 am
GMP
-
IAD
27h 20m
1 stop
$1,550ANA
Sun, Feb 22 - Sun, Mar 1

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

Our best EVA Air deals on Washington, D.C. Dulles Intl Airport to Seoul flight tickets
EVA Air
May 6
IAD7:20 pmWashington, D.C. Dulles Intl
34h 25m
2 stops
ICN6:45 pmIncheon Intl
May 20
ICN12:00 pmIncheon Intl
32h 34m
2 stops
IAD7:34 amWashington, D.C. Dulles Intl
$1,125
EVA Air
Feb 3
IAD6:04 pmWashington, D.C. Dulles Intl
26h 26m
2 stops
ICN10:30 amIncheon Intl
Feb 17
ICN11:40 amIncheon Intl
43h 40m
2 stops
IAD5:20 pmWashington, D.C. Dulles Intl
$1,168

Air China flights from Washington, D.C. Dulles Intl Airport to Seoul

Our best Air China deals on Washington, D.C. Dulles Intl Airport to Seoul flight tickets
Air China
Mar 10
IAD11:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Mar 31
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$873
Air China
Mar 3
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Mar 13
ICN1:10 pmIncheon Intl
19h 20m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$898
Air China
Mar 3
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Mar 16
ICN5:50 pmIncheon Intl
38h 40m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$934

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Seoul 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 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Seoul 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 3/31

7:05 pm-7:40 pm

2 stops37h 35m

$882

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

$883

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/3

10:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Fri 3/13

1:10 pm-7:30 pm

1 stop19h 20m

$898

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 3/6

10:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

Mon 3/16

5:55 pm-9:23 pm

2 stops40h 28m

$901

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

$902

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 3/10

11:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 3/17

8:40 am-7:30 pm

1 stop23h 50m

$1,264

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 4/7

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

Tue 7/7

7:55 pm-2:03 pm

2 stops31h 08m

$1,515

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 4/7

1:10 pm-11:05 am

2 stops32h 55m

Seoul Gimpo Intl

Tue 7/7

7:55 pm-2:03 pm

2 stops31h 08m

$1,519

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Sun 2/22

11:10 am-10:30 pm

1 stop21h 20m

Seoul Gimpo Intl

Sun 3/1

7:50 pm-9:10 am

1 stop27h 20m

$1,550

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

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

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 Seoul?

What is the cheapest month to fly to Seoul?

The month of March is another great option to travel to Seoul, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,097.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Tuesday departure recently was $1,294. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,561.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Washington, D.C. Dulles Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,360 when looking at flights departing in the morning. At noon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,554 per ticket.

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

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

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul 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 Seoul 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 Seoul flights?

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

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

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

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

Best Price Found

$554

Fastest flight time

15h 10m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul 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 Seoul found on momondo in the last 72 hours is $1,131.
The fastest flight from Washington, D.C. Dulles Intl Airport to Seoul takes 15h 10m
Direct flights go from Washington, D.C. Dulles Intl Airport to Seoul every day.
There are 2 airports in Seoul. From Washington, D.C. Dulles Intl Airport there are direct flights to Incheon Intl (ICN).
Search flight deals

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

    The straight-line distance from Washington, D.C. Dulles Intl to Seoul is 6922.8 mi. Flights usually cover this in 15h 10m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Seoul are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Seoul?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Seoul with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $317Free CancellationRating
7.4
9,199 reviews
Search United Airlines flights
DeltaPriceFrom $356Free CancellationRating
7.9
8,111 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
77 reviews
Search AIR PREMIA flights
American AirlinesPriceFrom $877Free CancellationRating
7.2
11,189 reviews
Search American Airlines flights
Air CanadaPriceFrom $972Free CancellationRating
7.1
10,656 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 Seoul

    The lowest priced Korean Air flight from Washington, D.C. Dulles Intl Airport to Seoul from the last 72 hours was $1,553. Generally, Korean Air has 7 flights on this route every week with an average price of $1,940. Korean Air is rated 8.4/10 by our users.

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

    Another popular option for Washington, D.C. Dulles Intl Airport to Seoul flights is Delta (7.9/10, 8,111 ratings). Delta flies from Washington, D.C. Dulles Intl Airport to Seoul around 7 times per week, with deals starting from $356 round-trip and rising to an average price of around $1,809.

Why use momondo?

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

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

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

Yes. All flights to Seoul from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport