Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

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 8/27. 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.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Seoul

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Seoul.
Air China Logo
11:00 pm - 11:35 amIAD-ICN
23h 35m1 stop
Air China Logo
10:50 am - 7:30 pmICN-IAD
21h 40m1 stop
$590Air China
Find Deal
Sat, May 3 - Fri, May 23
Air China Logo
11:00 pm - 4:35 pmIAD-ICN
28h 35m1 stop
Air China Logo
1:05 pm - 7:30 pmICN-IAD
19h 25m1 stop
$604Air China
Find Deal
Tue, Apr 22 - Tue, May 20
Air China Logo
11:00 pm - 4:35 pmIAD-ICN
28h 35m1 stop
Air China Logo
1:05 pm - 7:30 pmICN-IAD
19h 25m1 stop
$606Air China
Find Deal
Sat, May 3 - Fri, May 23
 Logo
7:00 am - 8:30 pmIAD-ICN
24h 30m1 stop
 Logo
6:20 pm - 5:55 amICN-IAD
24h 35m1 stop
Sat, May 10 - Sat, May 17
Turkish Airlines Logo
1:30 pm - 5:40 pmIAD-ICN
39h 10m1 stop
Turkish Airlines Logo
10:20 am - 11:45 amICN-IAD
38h 25m1 stop
$892Turkish Airlines
Find Deal
Mon, Apr 21 - Fri, Jun 27
Turkish Airlines Logo
1:30 pm - 8:40 amIAD-ICN
30h 10m1 stop
Turkish Airlines Logo
10:20 am - 11:45 amICN-IAD
38h 25m1 stop
$901Turkish Airlines
Find Deal
Thu, May 1 - Fri, May 23
 Logo
7:00 am - 8:30 pmIAD-ICN
24h 30m1 stop
 Logo
6:20 pm - 7:43 amICN-IAD
26h 23m2 stops
Wed, Apr 30 - Wed, May 7
WestJet Logo
6:45 pm - 6:45 pmIAD-ICN
35h 00m1 stop
WestJet Logo
8:45 pm - 5:54 pmICN-IAD
34h 09m1 stop
$988WestJet
Find Deal
Wed, Jun 4 - Tue, Jun 10
WestJet Logo
6:45 pm - 6:45 pmIAD-ICN
35h 00m1 stop
WestJet Logo
8:45 pm - 5:50 pmICN-IAD
34h 05m1 stop
$1,024WestJet
Find Deal
Fri, Sep 19 - Sun, Oct 5
Air Canada Logo
10:35 am - 5:30 pmIAD-ICN
17h 55m1 stop
Air Canada Logo
5:45 pm - 7:55 amICN-IAD
27h 10m2 stops
$1,191Air Canada
Find Deal
Wed, Apr 16 - Mon, May 5

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
May 3
IAD11:00 pmWashington, D.C. Dulles Intl
23h 35m
1 stop
ICN11:35 amIncheon Intl
May 23
ICN10:50 amIncheon Intl
21h 40m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Air China
Apr 22
IAD11:00 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
ICN4:35 pmIncheon Intl
May 20
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Air China
May 3
IAD11:00 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
ICN4:35 pmIncheon Intl
May 23
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl

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
Apr 21
IAD1:30 pmWashington, D.C. Dulles Intl
39h 10m
1 stop
ICN5:40 pmIncheon Intl
Jun 27
ICN10:20 amIncheon Intl
38h 25m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
Turkish Airlines
May 1
IAD1:30 pmWashington, D.C. Dulles Intl
30h 10m
1 stop
ICN8:40 amIncheon Intl
May 23
ICN10:20 amIncheon Intl
38h 25m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
Turkish Airlines
May 12
IAD1:30 pmWashington, D.C. Dulles Intl
39h 10m
1 stop
ICN5:40 pmIncheon Intl
Jun 10
ICN11:20 pmIncheon Intl
25h 25m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl

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 $1,047.

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 $1,601. 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 $1,787.

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. At noon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,774 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 25 weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,804 when searching 25 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 $1,362 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 April 2025, prices for Washington, D.C. Dulles Intl Airport to Seoul flights are approximately 62% 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

$426

Fastest flight time

17h 55m

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 $426. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Seoul found on momondo in the last 72 hours is $590.
The fastest flight from Washington, D.C. Dulles Intl Airport to Seoul takes 17h 55m
Direct flights go from Washington, D.C. Dulles Intl Airport to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)

  • 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 55m, 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
Air ChinaPriceFrom $563Free CancellationRating
7.1
82 reviews
Search Air China flights
Turkish AirlinesPriceFrom $807Free CancellationRating
7.3
3,750 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $865Free CancellationRating
7.0
9,022 reviews
Search Air Canada flights
American AirlinesPriceFrom $876Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Asiana AirlinesPriceFrom $1,312Free CancellationRating
8.2
438 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,547Free CancellationRating
8.4
1,051 reviews
Search Korean Air flights
KLMPriceFrom $1,559Free CancellationRating
7.8
1,323 reviews
Search KLM flights
DeltaPriceFrom $1,575Free CancellationRating
8.0
7,897 reviews
Search Delta flights
Air FrancePriceFrom $1,583Free CancellationRating
7.4
1,427 reviews
Search Air France flights
United AirlinesPriceFrom $1,605Free CancellationRating
7.4
8,616 reviews
Search United Airlines 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 $1,547. Generally, Korean Air has 7 flights on this route every week with an average price of $1,866. 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 (8.0/10, 7,897 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 $2,010.


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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Mon 4/7
Mon 4/14

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