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Cheap flights from Washington, D.C. Dulles Intl Airport to Seoul from $436

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 11/23. 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.
Multiple Airlines Logo
3:33 pm - 6:35 pmIAD-ICN
37h 02m2 stops
Multiple Airlines Logo
8:35 pm - 4:26 pmICN-IAD
33h 51m1 stop
$1,006Multiple Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 30
Multiple Airlines Logo
9:15 pm - 9:05 amIAD-ICN
21h 50m1 stop
Multiple Airlines Logo
9:20 pm - 4:32 pmICN-IAD
33h 12m2 stops
$1,007Multiple Airlines
Find Deal
Thu, Feb 5 - Sun, Feb 22
Multiple Airlines Logo
6:04 pm - 6:35 pmIAD-ICN
34h 31m1 stop
Multiple Airlines Logo
6:55 pm - 5:04 pmICN-IAD
36h 09m2 stops
$1,010Multiple Airlines
Find Deal
Thu, Jan 8 - Fri, Feb 6
Multiple Airlines Logo
3:37 pm - 6:35 pmIAD-ICN
36h 58m2 stops
Multiple Airlines Logo
8:35 pm - 5:55 amICN-IAD
23h 20m1 stop
$1,017Multiple Airlines
Find Deal
Fri, Jan 30 - Sat, Feb 28
Turkish Airlines Logo
2:30 pm - 9:05 amIAD-ICN
29h 35m1 stop
Turkish Airlines Logo
12:10 am - 12:45 pmICN-IAD
25h 35m1 stop
$1,022Turkish Airlines
Find Deal
Wed, Mar 11 - Tue, Mar 24
Turkish Airlines Logo
9:15 pm - 6:20 pmIAD-ICN
31h 05m1 stop
Turkish Airlines Logo
10:15 am - 11:35 amICN-IAD
38h 20m1 stop
$1,023Turkish Airlines
Find Deal
Wed, Feb 4 - Wed, May 6
Air China Logo
10:00 pm - 1:05 pmIAD-GMP
25h 05m1 stop
Air China Logo
2:25 pm - 7:26 pmGMP-IAD
43h 01m2 stops
$1,560Air China
Find Deal
Tue, Dec 2 - Tue, Dec 9
Air China Logo
9:10 am - 1:05 pmIAD-GMP
37h 55m2 stops
Air China Logo
2:25 pm - 2:50 pmGMP-IAD
38h 25m2 stops
$1,570Air China
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Mon, Nov 24 - Fri, Dec 5
ANA Logo
12:15 pm - 10:20 pmIAD-GMP
21h 05m1 stop
ANA Logo
7:55 pm - 10:05 amGMP-IAD
27h 10m1 stop
$1,601ANA
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Thu, Apr 9 - Tue, Apr 21
ANA Logo
12:15 pm - 10:20 pmIAD-GMP
21h 05m1 stop
ANA Logo
7:55 pm - 10:05 amGMP-IAD
27h 10m1 stop
$1,602ANA
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Wed, Apr 29 - Wed, May 13

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

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Seoul flight tickets
Turkish Airlines
Mar 11
IAD2:30 pmWashington, D.C. Dulles Intl
29h 35m
1 stop
ICN9:05 amIncheon Intl
Mar 24
ICN12:10 amIncheon Intl
25h 35m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$1,022
Find similar
Turkish Airlines
Feb 4
IAD9:15 pmWashington, D.C. Dulles Intl
31h 05m
1 stop
ICN6:20 pmIncheon Intl
May 6
ICN10:15 amIncheon Intl
38h 20m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,023
Find similar
Turkish Airlines
Mar 10
IAD2:30 pmWashington, D.C. Dulles Intl
38h 50m
1 stop
ICN6:20 pmIncheon Intl
Mar 31
ICN11:20 pmIncheon Intl
25h 15m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,025
Find similar

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
Nov 18
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Nov 25
ICN1:10 pmIncheon Intl
19h 20m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,159
Find similar
Air China
Dec 2
IAD10:00 pmWashington, D.C. Dulles Intl
25h 05m
1 stop
GMP1:05 pmSeoul Gimpo Intl
Dec 9
GMP2:25 pmSeoul Gimpo Intl
43h 01m
2 stops
IAD7:26 pmWashington, D.C. Dulles Intl
$1,560
Find similar
Air China
Nov 24
IAD9:10 amWashington, D.C. Dulles Intl
37h 55m
2 stops
GMP1:05 pmSeoul Gimpo Intl
Dec 5
GMP2:25 pmSeoul Gimpo Intl
38h 25m
2 stops
IAD2:50 pmWashington, D.C. Dulles Intl
$1,570
Find similar

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 November 10, 2025.
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

Sat 1/10

3:33 pm-6:35 pm

2 stops37h 02m

Incheon Intl

Fri 1/30

8:35 pm-4:26 pm

1 stop33h 51m

$1,006

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 2/5

9:15 pm-9:05 am

1 stop21h 50m

Incheon Intl

Sun 2/22

9:20 pm-4:32 pm

2 stops33h 12m

$1,007

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 1/8

6:04 pm-6:35 pm

1 stop34h 31m

Incheon Intl

Fri 2/6

6:55 pm-5:04 pm

2 stops36h 09m

$1,010

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 1/30

3:37 pm-6:35 pm

2 stops36h 58m

Incheon Intl

Sat 2/28

8:35 pm-5:55 am

1 stop23h 20m

$1,017

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 3/11

2:30 pm-9:05 am

1 stop29h 35m

Incheon Intl

Tue 3/24

12:10 am-12:45 pm

1 stop25h 35m

$1,022

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 2/4

9:15 pm-6:20 pm

1 stop31h 05m

Incheon Intl

Wed 5/6

10:15 am-11:35 am

1 stop38h 20m

$1,023

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 12/2

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 12/9

2:25 pm-7:26 pm

2 stops43h 01m

$1,560

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 11/24

9:10 am-1:05 pm

2 stops37h 55m

Seoul Gimpo Intl

Fri 12/5

2:25 pm-2:50 pm

2 stops38h 25m

$1,570

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Thu 4/9

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

Tue 4/21

7:55 pm-10:05 am

1 stop27h 10m

$1,601

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 4/29

12:15 pm-10:20 pm

1 stop21h 05m

Seoul Gimpo Intl

Wed 5/13

7:55 pm-10:05 am

1 stop27h 10m

$1,602

Flights are sorted by cheapest round-trip flights 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 January is another great option to travel to Seoul, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $1,030.

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 $1,384. 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 $1,629.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $1,179 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,689 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 $1,776 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 $1,376 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?

As of November 2025, prices for Washington, D.C. Dulles Intl Airport to Seoul flights are approximately 45% cheaper when compared to flights at the same time last year.

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

$617

Fastest flight time

15h 25m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from Washington, D.C. Dulles Intl Airport in the past 72 hours is $617. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Seoul found on momondo in the last 72 hours is $1,252.
The fastest flight from Washington, D.C. Dulles Intl Airport to Seoul takes 15h 25m
Direct flights go from Washington, D.C. Dulles Intl Airport to Seoul every day.
There is 1 airport near Seoul: 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 20h 50m, 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
9,012 reviews
Search United Airlines flights
DeltaPriceFrom $397Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Air ChinaPriceFrom $591Free CancellationRating
7.1
122 reviews
Search Air China flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.2
485 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $791Free CancellationRating
7.3
4,041 reviews
Search Turkish Airlines flights
American AirlinesPriceFrom $876Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
Air CanadaPriceFrom $893Free CancellationRating
7.1
10,437 reviews
Search Air Canada flights
Korean AirPriceFrom $1,548Free CancellationRating
8.4
1,162 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 $1,548. Generally, Korean Air has 7 flights on this route every week with an average price of $1,898. 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, 8,006 ratings). Delta flies from Washington, D.C. Dulles Intl Airport to Seoul around 7 times per week, with deals starting from $397 round-trip and rising to an average price of around $1,846.

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