Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Seoul from $362

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 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Seoul (IAD-SEL)

Cheap round-trip flights

Air Canada Logo
8:25 am - 4:05 pmIAD-ICN
18h 40m1 stop
Air Canada Logo
7:05 pm - 9:38 amICN-IAD
27h 33m1 stop
$873Air Canada
Find Deal
vie., sep. 19 - lun., oct. 6
Air Canada Logo
8:25 am - 4:05 pmIAD-ICN
18h 40m1 stop
Air Canada Logo
5:45 pm - 9:38 amICN-IAD
28h 53m2 stops
$883Air Canada
Find Deal
vie., sep. 19 - lun., oct. 6
Logo
6:45 pm - 4:05 pmIAD-ICN
32h 20m2 stops
Logo
6:00 pm - 9:38 amICN-IAD
28h 38m2 stops
$907
Find Deal
lun., sep. 15 - vie., oct. 17
Logo
1:30 pm - 5:40 pmIAD-ICN
39h 10m1 stop
Logo
6:00 pm - 9:38 amICN-IAD
28h 38m2 stops
$955
Find Deal
lun., sep. 15 - vie., oct. 17
Air China Logo
10:00 pm - 11:40 amIAD-ICN
23h 40m1 stop
Air China Logo
5:50 pm - 6:30 pmICN-IAD
38h 40m1 stop
$1,011Air China
Find Deal
mar., nov. 4 - jue., nov. 13
China Eastern Logo
12:09 pm - 5:25 pmIAD-ICN
39h 16m2 stops
China Eastern Logo
12:55 pm - 7:08 pmICN-IAD
44h 13m2 stops
$1,012China Eastern
Find Deal
lun., nov. 3 - lun., nov. 24
Turkish Airlines Logo
9:40 pm - 5:40 pmIAD-ICN
31h 00m1 stop
Turkish Airlines Logo
12:10 am - 7:15 pmICN-IAD
33h 05m1 stop
$1,018Turkish Airlines
Find Deal
mié., oct. 22 - mar., nov. 18
Air China Logo
10:00 pm - 11:40 amIAD-ICN
23h 40m1 stop
Air China Logo
11:10 am - 6:30 pmICN-IAD
21h 20m1 stop
$1,030Air China
Find Deal
mar., nov. 4 - mar., nov. 18
Turkish Airlines Logo
9:10 pm - 6:20 pmIAD-ICN
31h 10m1 stop
Turkish Airlines Logo
12:10 am - 11:45 amICN-IAD
25h 35m1 stop
$1,036Turkish Airlines
Find Deal
dom., nov. 9 - mié., nov. 12
China Eastern Logo
12:09 pm - 8:45 pmIAD-ICN
42h 36m2 stops
China Eastern Logo
8:55 am - 7:08 pmICN-IAD
24h 13m2 stops
$1,059China Eastern
Find Deal
mié., nov. 5 - mar., nov. 11

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 4
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Nov 13
ICN5:50 pmIncheon Intl
38h 40m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,011
Find similar
Air China
Nov 4
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Nov 18
ICN11:10 amIncheon Intl
21h 20m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,030
Find similar
Air China
Nov 11
IAD10:00 pmWashington, D.C. Dulles Intl
23h 40m
1 stop
ICN11:40 amIncheon Intl
Nov 27
ICN5:50 pmIncheon Intl
38h 40m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,033
Find similar

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

Our best Cathay Pacific deals on Washington, D.C. Dulles Intl Airport to Seoul flight tickets
Cathay Pacific
Sep 23
IAD5:40 pmWashington, D.C. Dulles Intl
31h 25m
2 stops
ICN2:05 pmIncheon Intl
Nov 18
ICN10:05 amIncheon Intl
26h 28m
2 stops
IAD10:33 pmWashington, D.C. Dulles Intl
$1,046
Find similar
Cathay Pacific
Sep 9
IAD5:40 pmWashington, D.C. Dulles Intl
38h 30m
2 stops
ICN9:10 pmIncheon Intl
Oct 15
ICN1:40 pmIncheon Intl
58h 11m
2 stops
IAD10:51 amWashington, D.C. Dulles Intl
$1,054
Find similar
Cathay Pacific
Oct 29
IAD5:37 pmWashington, D.C. Dulles Intl
38h 38m
2 stops
ICN9:15 pmIncheon Intl
Nov 12
ICN1:50 pmIncheon Intl
46h 42m
2 stops
IAD10:32 pmWashington, D.C. Dulles Intl
$1,060
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 septiembre 3, 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

vie. 9/19

8:25 am-4:05 pm

1 stop18h 40m

Incheon Intl

lun. 10/6

7:05 pm-9:38 am

1 stop27h 33m

$873

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

vie. 9/19

8:25 am-4:05 pm

1 stop18h 40m

Incheon Intl

lun. 10/6

5:45 pm-9:38 am

2 stops28h 53m

$883

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

lun. 9/15

6:45 pm-4:05 pm

2 stops32h 20m

Incheon Intl

vie. 10/17

6:00 pm-9:38 am

2 stops28h 38m

$907

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

lun. 9/15

1:30 pm-5:40 pm

1 stop39h 10m

Incheon Intl

vie. 10/17

6:00 pm-9:38 am

2 stops28h 38m

$955

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mar. 11/4

10:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

jue. 11/13

5:50 pm-6:30 pm

1 stop38h 40m

$1,011

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

lun. 11/3

12:09 pm-5:25 pm

2 stops39h 16m

Incheon Intl

lun. 11/24

12:55 pm-7:08 pm

2 stops44h 13m

$1,012

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mié. 10/22

9:40 pm-5:40 pm

1 stop31h 00m

Incheon Intl

mar. 11/18

12:10 am-7:15 pm

1 stop33h 05m

$1,018

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mar. 11/4

10:00 pm-11:40 am

1 stop23h 40m

Incheon Intl

mar. 11/18

11:10 am-6:30 pm

1 stop21h 20m

$1,030

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

dom. 11/9

9:10 pm-6:20 pm

1 stop31h 10m

Incheon Intl

mié. 11/12

12:10 am-11:45 am

1 stop25h 35m

$1,036

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mié. 11/5

12:09 pm-8:45 pm

2 stops42h 36m

Incheon Intl

mar. 11/11

8:55 am-7:08 pm

2 stops24h 13m

$1,059

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 February is another great option to travel to Seoul, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $958.

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 $1,460. 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 $1,648.

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 $1,688 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 $1,316 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

$542

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 $542. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Seoul found on momondo in the last 72 hours is $1,074.
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 18h 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
8,937 reviews
Search United Airlines flights
Air ChinaPriceFrom $591Free CancellationRating
7.2
97 reviews
Search Air China flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $800Free CancellationRating
7.3
3,954 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
Korean AirPriceFrom $1,523Free CancellationRating
8.4
1,135 reviews
Search Korean Air flights
DeltaPriceFrom $1,575Free CancellationRating
7.9
7,972 reviews
Search Delta 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 $1,523. Generally, Korean Air has 7 flights on this route every week with an average price of $1,884. 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, 7,972 ratings). Delta flies from Washington, D.C. Dulles Intl Airport to Seoul around 7 times per week, with deals starting from $1,575 round-trip and rising to an average price of around $1,948.

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.

An easier way to manage your Seoul trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
lun. 9/8
lun. 9/15
By creating a price alert you accept our terms of use and privacy policy.

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