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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
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
China Eastern Logo
12:09 pm - 11:00 amIAD-GMP
32h 51m2 stops
China Eastern Logo
8:50 pm - 7:08 pmGMP-IAD
36h 18m2 stops
$1,021China Eastern
Find Deal
Wed, Nov 5 - Mon, Nov 10
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 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
$1,377Air China
Find Deal
Tue, Nov 4 - Tue, Nov 11
Air China Logo
10:00 pm - 1:05 pmIAD-GMP
25h 05m1 stop
Air China Logo
2:25 pm - 6:48 amGMP-IAD
30h 23m2 stops
$1,378Air China
Find Deal
Tue, Nov 4 - Thu, Nov 13

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

Our best China Eastern deals on Washington, D.C. Dulles Intl Airport to Seoul flight tickets
China Eastern
Nov 5
IAD12:09 pmWashington, D.C. Dulles Intl
33h 46m
2 stops
ICN11:55 amIncheon Intl
Nov 11
ICN8:55 amIncheon Intl
24h 13m
2 stops
IAD7:08 pmWashington, D.C. Dulles Intl
$1,021
Find similar
China Eastern
Nov 19
IAD12:11 pmWashington, D.C. Dulles Intl
41h 39m
2 stops
GMP7:50 pmSeoul Gimpo Intl
Nov 24
GMP8:50 pmSeoul Gimpo Intl
36h 18m
2 stops
IAD7:08 pmWashington, D.C. Dulles Intl
$1,251
Find similar

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Seoul 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

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 September 17, 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

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

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.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 11/5

12:09 pm-11:00 am

2 stops32h 51m

Seoul Gimpo Intl

Mon 11/10

8:50 pm-7:08 pm

2 stops36h 18m

$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

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 11/4

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 11/11

2:25 pm-7:26 pm

2 stops43h 01m

$1,377

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 11/4

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Thu 11/13

2:25 pm-6:48 am

2 stops30h 23m

$1,378

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 cheapest month to fly to Seoul?

The month of November is another great option to travel to Seoul, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $969.

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

According to our data, Wednesday is the cheapest day to fly to Seoul from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Wednesday departure recently was $1,432. 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 $1,660.

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 $1,684 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 $1,244 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

$555

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 $555. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Seoul found on momondo in the last 72 hours is $1,094.
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 17h 40m, 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 $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 Seoul

    The lowest priced Korean Air flight from Washington, D.C. Dulles Intl Airport to Seoul from the last 72 hours was $1,535. Generally, Korean Air has 7 flights on this route every week with an average price of $1,885. 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, 7,961 ratings). Delta flies from Washington, D.C. Dulles Intl Airport to Seoul around 7 times per week, with deals starting from $1,123 round-trip and rising to an average price of around $1,917.

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