Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. 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. 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. to Seoul

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. 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
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
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
American Airlines Logo
6:54 am - 3:30 pmDCA-ICN
19h 36m1 stop
American Airlines Logo
5:25 pm - 11:01 pmICN-DCA
18h 36m1 stop
$1,462American Airlines
Find Deal
Tue, Aug 19 - Tue, Sep 2
American Airlines Logo
5:00 am - 3:30 pmDCA-ICN
21h 30m2 stops
American Airlines Logo
5:25 pm - 6:59 amICN-DCA
26h 34m2 stops
$1,467American Airlines
Find Deal
Sun, Aug 24 - Thu, Sep 4
Delta Logo
5:40 am - 2:10 pmBWI-ICN
19h 30m1 stop
Delta Logo
10:15 am - 4:23 pmICN-BWI
19h 08m1 stop
$1,523Delta
Find Deal
Sun, May 4 - Wed, May 14
Delta Logo
6:10 pm - 2:10 pmBWI-ICN
31h 00m1 stop
Delta Logo
7:25 pm - 10:59 pmICN-BWI
17h 34m1 stop
$1,531Delta
Find Deal
Sat, Aug 23 - Sun, Dec 21
Air Canada Logo
4:35 pm - 4:05 pmDCA-ICN
34h 30m2 stops
Air Canada Logo
5:45 pm - 8:53 amICN-DCA
28h 08m2 stops
$1,687Air Canada
Find Deal
Wed, May 14 - Mon, May 26

Air China flights from Washington, D.C. to Seoul

Our best Air China deals on Washington, D.C. 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. to Seoul

Our best Turkish Airlines deals on Washington, D.C. 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. 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. 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. averaging around $1,081.

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.. 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. 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. to Seoul flight route?

Fly from Washington, D.C. Dulles Intl to Incheon Intl for the best Washington, D.C. - 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. when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,474 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Washington, D.C. for as low as $969 on momondo.

What cabin class options are available on Washington, D.C. to Seoul flights?

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

As of April 2025, prices for Washington, D.C. to Seoul flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Seoul

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

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

Best Price Found

$426

Fastest flight time

17h 30m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from Washington, D.C. in the past 72 hours is $426. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $590.
The fastest flight from Washington, D.C. to Seoul takes 17h 30m
Direct flights go from Washington, D.C. to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)

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

    Seoul is 6932.9 mi away from Washington, D.C.. By plane, this route typically takes 17h 40m.

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

    Prices for flights from Washington, D.C. to Seoul were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Seoul.

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

    The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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


Best airlines flying from Washington, D.C. to Seoul

Compare and see reviews for airlines that fly from Washington, D.C. 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
DeltaPriceFrom $877Free CancellationRating
8.0
7,897 reviews
Search Delta flights
United AirlinesPriceFrom $877Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
Korean AirPriceFrom $1,077Free CancellationRating
8.4
1,051 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $1,312Free CancellationRating
8.2
438 reviews
Search Asiana Airlines flights
KLMPriceFrom $1,559Free CancellationRating
7.8
1,323 reviews
Search KLM flights
Air FrancePriceFrom $1,583Free CancellationRating
7.4
1,427 reviews
Search Air France flights
  • Korean Air Flights From Washington, D.C. to Seoul

    Korean Air is one of the most popular airlines flying from Washington, D.C. to Seoul, operating 7 flights/week on average for this route. A good Korean Air flight deal for Washington, D.C. to Seoul starts from $1,077 round-trip, up to an average price of $1,842. Our users have rated Korean Air at 8.4/10.

  • Delta Flights From Washington, D.C. to Seoul

    Delta is also a popular choice for this route. Delta flight deals for Washington, D.C. to Seoul start from as low as $877 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,890. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 8.0/10 across 7,897 reviews.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Seoul. momondo saves you time and could save you money on your trip.

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

Flights from Washington, D.C. to Seoul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

If you are not ready to book a flight from Washington, D.C. to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.


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