Which layover airport has the shortest connection time from Washington, D.C. to Seoul?

Montreal (YUL) has the shortest average layover time for this route: 1h 03m.

What airlines fly to Seoul?

Korean Air, AIR PREMIA and Delta are the top three most popular airlines that fly to Seoul from Washington, D.C. according to our data. Korean Air is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 9 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Washington, D.C. to Seoul?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 17h 30m.

How many flights depart from Washington, D.C. to Seoul on average per week?

As of April 2026, there are 14 flights per week flying from Washington, D.C. to Seoul. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

How many flights depart from Washington, D.C. to Seoul on average per day?

As of April 2026, 2 flights take off from Washington, D.C. and land in Seoul each day. The most common flight departure time for this route is 1:00PM, with 100% of daily flights taking off in the afternoon.

Which airport is the most popular layover for flights between Washington, D.C. and Seoul?

Istanbul (IST) was the most common stop: 24% of momondo users choosing 1-stop flights on this route connected there.

How long does it take to fly to Seoul?

If you’re flying from a popular airport in Washington, D.C., such as Washington, D.C. or Baltimore, and flying into Seoul, then you can expect flight times to average 16h 20m and 17h 02m, respectively.

Which layover airport offers the lowest fares from Washington, D.C. to Seoul?

Flights via Beijing (PEK) offer the lowest average round-trip price of $698.

What is the cheapest airline that flies from Washington, D.C. to Seoul?

Air Canada, American Airlines, and Japan Airlines are the most popular carriers operating from Washington, D.C. to Seoul

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?

The number of operators available for flights from Washington, D.C. to Seoul is 9 as of April 2026.

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.

$456 Cheap Flights from Washington, D.C. to Seoul in 2026

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

10:00 am - 10:50 am

ICN

IAD

13h 50mnonstop

$1,025AIR PREMIA

Fri, Apr 24 - Sun, May 10

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

10:00 am - 10:50 am

ICN

IAD

13h 50mnonstop

$1,026AIR PREMIA

Fri, May 1 - Fri, May 15

1:15 am - 11:00 am

IAD

ICN

20h 45m

1 stop

12:00 pm - 10:00 pm

ICN

IAD

23h 00m

1 stop

$1,043EVA Air

Wed, Sep 30 - Mon, Oct 12

6:16 pm - 11:15 am

BWI

ICN

27h 59m

2 stops

12:35 pm - 6:21 am

ICN

BWI

30h 46m

2 stops

$1,137Multiple Airlines

Tue, Sep 29 - Tue, Oct 20

1:15 am - 7:15 pm

IAD

GMP

29h 00m

1 stop

1:50 pm - 10:00 pm

GMP

IAD

21h 10m

1 stop

$1,183EVA Air

Mon, Sep 28 - Fri, Oct 9

6:16 pm - 11:15 am

BWI

ICN

27h 59m

2 stops

12:35 pm - 6:30 am

ICN

BWI

30h 55m

2 stops

$1,189Multiple Airlines

Thu, Sep 17 - Thu, Oct 1

4:20 pm - 4:25 pm

DCA

ICN

35h 05m

1 stop

5:45 pm - 10:20 am

ICN

DCA

29h 35m

2 stops

$1,245Air Canada

Wed, Sep 30 - Wed, Oct 14

12:40 pm - 4:05 pm

DCA

ICN

38h 25m

2 stops

5:45 pm - 12:00 pm

ICN

DCA

31h 15m

2 stops

$1,249Air Canada

Wed, Sep 30 - Wed, Oct 14

6:59 am - 9:15 pm

DCA

GMP

25h 16m

2 stops

12:05 pm - 8:44 pm

GMP

DCA

22h 39m

2 stops

$1,420Japan Airlines

Tue, Oct 6 - Tue, Nov 17

12:31 pm - 9:15 pm

DCA

GMP

19h 44m

2 stops

8:00 am - 11:02 pm

GMP

DCA

28h 02m

2 stops

$1,421Japan Airlines

Thu, Aug 27 - Wed, Sep 9

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 27

IAD1:20 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

ICN8:35 amIncheon Intl

May 7

ICN11:20 pmIncheon Intl

25h 15m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$1,260

Turkish Airlines

Apr 21

IAD1:20 pmWashington, D.C. Dulles Intl

39h 20m

1 stop

ICN5:40 pmIncheon Intl

May 6

ICN10:15 amIncheon Intl

38h 20m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$1,279

Turkish Airlines

Apr 22

IAD9:45 pmWashington, D.C. Dulles Intl

30h 55m

1 stop

ICN5:40 pmIncheon Intl

Jul 6

ICN10:15 amIncheon Intl

38h 20m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$1,298

AIR PREMIA flights from Washington, D.C. to Seoul

Our best AIR PREMIA deals on Washington, D.C. to Seoul flight tickets

AIR PREMIA

Apr 24

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

May 10

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,025

AIR PREMIA

May 8

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

May 25

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,026

AIR PREMIA

Apr 24

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

Apr 27

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,031

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 4/24

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Sun 5/10

10:00 am-10:50 am

Nonstop13h 50m

$1,025

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 5/1

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Fri 5/15

10:00 am-10:50 am

Nonstop13h 50m

$1,026

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 9/30

1:15 am-11:00 am

1 stop20h 45m

Incheon Intl

Mon 10/12

12:00 pm-10:00 pm

1 stop23h 00m

$1,043

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Tue 9/29

6:16 pm-11:15 am

2 stops27h 59m

Incheon Intl

Tue 10/20

12:35 pm-6:21 am

2 stops30h 46m

$1,137

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Mon 9/28

1:15 am-7:15 pm

1 stop29h 00m

Seoul Gimpo Intl

Fri 10/9

1:50 pm-10:00 pm

1 stop21h 10m

$1,183

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Thu 9/17

6:16 pm-11:15 am

2 stops27h 59m

Incheon Intl

Thu 10/1

12:35 pm-6:30 am

2 stops30h 55m

$1,189

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/30

4:20 pm-4:25 pm

1 stop35h 05m

Incheon Intl

Wed 10/14

5:45 pm-10:20 am

2 stops29h 35m

$1,245

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/30

12:40 pm-4:05 pm

2 stops38h 25m

Incheon Intl

Wed 10/14

5:45 pm-12:00 pm

2 stops31h 15m

$1,249

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 10/6

6:59 am-9:15 pm

2 stops25h 16m

Seoul Gimpo Intl

Tue 11/17

12:05 pm-8:44 pm

2 stops22h 39m

$1,420

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 8/27

12:31 pm-9:15 pm

2 stops19h 44m

Seoul Gimpo Intl

Wed 9/9

8:00 am-11:02 pm

2 stops28h 02m

$1,421

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

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 September is another great option to travel to Seoul, with average flight prices from Washington, D.C. averaging around $1,221.

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.. The lowest ticket price found for a Tuesday departure recently was $1,218. 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 Thursday, with ticket prices averaging around $1,433.

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

Flying to Seoul from Washington, D.C. at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,283 when looking at flights departing at noon. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,317 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 weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,669 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. for as low as $1,152 on momondo.

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

There are 3 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.

Can stopping save me money on Washington, D.C. to Seoul flights?

You could potentially save up to 16% on your flight if you consider stops on a Washington, D.C. to Seoul flight.

How have Washington, D.C. to Seoul flight prices changed over time?

As of April 2026, prices for Washington, D.C. to Seoul flights are approximately 5% more expensive 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	$536
Fastest flight time	15h 10m
Direct flights	Mon, Tue, Thu, Fri and Sat
Airports in Seoul	2 airports

The best one-way flight to Seoul from Washington, D.C. in the past 72 hours is $536. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $817.

The fastest flight from Washington, D.C. to Seoul takes 15h 10m

Direct flights go from Washington, D.C. to Seoul on Monday, Tuesday, Thursday, Friday and Saturday. The only airline offering direct flights is AIR PREMIA.

There are 2 airports in Seoul. From Washington, D.C. there are direct flights to Incheon Intl (ICN).

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Seoul

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 15h 10m.
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?
The number of operators available for flights from Washington, D.C. to Seoul is 9 as of April 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Seoul is Boeing 777-300ER, representing 47.33% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 20.05%, Boeing 777 at 16.64%, and Boeing 787-8 Dreamliner at 14.75%.
What is the most popular airline from Washington, D.C. to Seoul?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Seoul is Delta, representing 27% of all bookings. The subsequent popular airlines are Korean Air at 23%, Air Canada at 16%, and AIR PREMIA at 13%.

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
United Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 9,581 reviews	Search United Airlines flights
Delta	PriceFrom $392	Free Cancellation	Rating 7.9 8,407 reviews	Search Delta flights
AIR PREMIA	PriceFrom $589	Free Cancellation	Rating 8.2 85 reviews	Search AIR PREMIA flights
Air Canada	PriceFrom $685	Free Cancellation	Rating 7.1 10,918 reviews	Search Air Canada flights
American Airlines	PriceFrom $716	Free Cancellation	Rating 7.1 11,565 reviews	Search American Airlines flights
Air China	PriceFrom $729	Free Cancellation	Rating 7.3 146 reviews	Search Air China flights
Asiana Airlines	PriceFrom $740	Free Cancellation	Rating 8.1 515 reviews	Search Asiana Airlines flights
Turkish Airlines	PriceFrom $902	Free Cancellation	Rating 7.3 4,306 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $1,385	Free Cancellation	Rating 8.4 1,204 reviews	Search Korean Air 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 $1,385 round-trip, up to an average price of $1,747. 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 $392 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,579. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 7.9/10 across 8,408 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.

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Cheap flights from Washington, D.C. to Seoul from $456

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 5/6. 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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Turkish Airlines flights from Washington, D.C. to Seoul

Our best Turkish Airlines deals on Washington, D.C. to Seoul flight tickets

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Our best AIR PREMIA deals on Washington, D.C. to Seoul flight tickets

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How to get the cheapest flight ticket from Washington, D.C. to Seoul

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?

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

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

What is the cheapest Washington, D.C. to Seoul flight route?

How far in advance should I book a flight to Seoul?

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

Can stopping save me money on Washington, D.C. to Seoul flights?

How have Washington, D.C. to Seoul flight prices changed over time?

What is the cheapest airline that flies from Washington, D.C. to Seoul?

What airlines fly to Seoul?

Which airport is the most popular layover for flights between Washington, D.C. and Seoul?

Which layover airport offers the lowest fares from Washington, D.C. to Seoul?

Which layover airport has the shortest travel time from Washington, D.C. to Seoul?

Which layover airport has the shortest connection time from Washington, D.C. to Seoul?

How many flights depart from Washington, D.C. to Seoul on average per day?

How many flights depart from Washington, D.C. to Seoul on average per week?

How long does it take to fly to Seoul?

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

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

Fastest flight time

Direct flights

Airports in Seoul

Frequently asked questions about flying 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

Korean Air Flights From Washington, D.C. to Seoul

Delta Flights From Washington, D.C. to Seoul

Why use momondo?

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.

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

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Seoul. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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