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

Toronto (YYZ) was the most common stop: 29% 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 18h 58m and 19h 05m, respectively.

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.

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

As of May 2026, there are 18 flights per week flying from Washington, D.C. to Seoul. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

As of May 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 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 airlines fly to Seoul?

AIR PREMIA, Korean Air and Delta are the top three most popular airlines that fly to Seoul from Washington, D.C. according to our data. AIR PREMIA is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 8 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

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

Alaska Airlines, Japan Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Seoul

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.

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 8 as of May 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.

$481 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.

1:15 am - 7:15 pm

IAD

GMP

29h 00m

1 stop

7:15 pm - 10:00 pm

GMP

IAD

39h 45m

1 stop

$1,144EVA Air

Mon, Sep 28 - Tue, Oct 13

1:15 am - 11:00 am

IAD

ICN

20h 45m

1 stop

7:45 pm - 10:00 pm

ICN

IAD

39h 15m

1 stop

$1,174EVA Air

Sat, Sep 12 - Sun, Sep 20

1:15 am - 11:00 am

IAD

ICN

20h 45m

1 stop

7:45 pm - 10:00 pm

ICN

IAD

39h 15m

1 stop

$1,176EVA Air

Fri, Sep 11 - Sun, Sep 20

2:30 pm - 6:20 pm

IAD

ICN

38h 50m

1 stop

12:05 am - 11:45 am

ICN

IAD

25h 40m

1 stop

$1,181Turkish Airlines

Tue, Oct 27 - Tue, Nov 10

1:30 pm - 6:20 pm

IAD

ICN

38h 50m

1 stop

10:35 am - 7:25 pm

ICN

IAD

46h 50m

1 stop

$1,199Turkish Airlines

Fri, Nov 13 - Wed, Nov 25

9:30 am - 12:40 pm

DCA

ICN

38h 10m

2 stops

8:05 pm - 5:59 pm

ICN

DCA

34h 54m

2 stops

$1,208Multiple Airlines

Sun, Aug 30 - Mon, Sep 7

11:35 am - 10:25 pm

DCA

ICN

45h 50m

2 stops

8:00 am - 8:06 pm

ICN

DCA

25h 06m

2 stops

$1,268Multiple Airlines

Wed, Sep 2 - Mon, Sep 14

11:34 am - 12:40 pm

DCA

ICN

36h 06m

2 stops

1:55 am - 8:15 pm

ICN

DCA

31h 20m

2 stops

$1,279Cathay Pacific

Thu, Sep 3 - Wed, Sep 30

6:15 am - 6:45 pm

BWI

ICN

47h 30m

2 stops

8:45 pm - 10:56 am

ICN

BWI

27h 11m

2 stops

$1,283WestJet

Wed, Sep 2 - Mon, Sep 14

6:05 am - 6:45 pm

BWI

ICN

47h 40m

2 stops

8:45 pm - 9:13 pm

ICN

BWI

37h 28m

2 stops

$1,334WestJet

Fri, Sep 4 - Sun, Sep 13

Finnair flights from Washington, D.C. to Seoul

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

Finnair

Jun 3

DCA6:59 amWashington, D.C. Reagan-National

39h 21m

2 stops

ICN11:20 amIncheon Intl

Jun 10

ICN9:50 pmIncheon Intl

39h 09m

2 stops

DCA11:59 pmWashington, D.C. Reagan-National

$1,384

Finnair

Aug 26

BWI7:16 amBaltimore/Washington

39h 04m

2 stops

ICN11:20 amIncheon Intl

Sep 7

ICN9:50 pmIncheon Intl

37h 09m

2 stops

BWI9:59 pmBaltimore/Washington

$1,418

Finnair

Jun 1

DCA5:22 pmWashington, D.C. Reagan-National

28h 58m

2 stops

ICN11:20 amIncheon Intl

Jun 8

ICN9:50 pmIncheon Intl

38h 24m

2 stops

DCA11:14 pmWashington, D.C. Reagan-National

$1,449

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

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

AIR PREMIA

Aug 26

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

Sep 9

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,243

AIR PREMIA

Oct 21

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

Oct 28

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,253

AIR PREMIA

Aug 26

IAD1:20 pmWashington, D.C. Dulles Intl

15h 35m

ICN5:55 pmIncheon Intl

Sep 9

ICN10:00 amIncheon Intl

13h 50m

IAD10:50 amWashington, D.C. Dulles Intl

$1,262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Tue 10/13

7:15 pm-10:00 pm

1 stop39h 45m

$1,144

Quickest round-trip

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 9/12

1:15 am-11:00 am

1 stop20h 45m

Incheon Intl

Sun 9/20

7:45 pm-10:00 pm

1 stop39h 15m

$1,174

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 9/11

1:15 am-11:00 am

1 stop20h 45m

Incheon Intl

Sun 9/20

7:45 pm-10:00 pm

1 stop39h 15m

$1,176

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 10/27

2:30 pm-6:20 pm

1 stop38h 50m

Incheon Intl

Tue 11/10

12:05 am-11:45 am

1 stop25h 40m

$1,181

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 11/13

1:30 pm-6:20 pm

1 stop38h 50m

Incheon Intl

Wed 11/25

10:35 am-7:25 pm

1 stop46h 50m

$1,199

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 8/30

9:30 am-12:40 pm

2 stops38h 10m

Incheon Intl

Mon 9/7

8:05 pm-5:59 pm

2 stops34h 54m

$1,208

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 9/2

11:35 am-10:25 pm

2 stops45h 50m

Incheon Intl

Mon 9/14

8:00 am-8:06 pm

2 stops25h 06m

$1,268

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/3

11:34 am-12:40 pm

2 stops36h 06m

Incheon Intl

Wed 9/30

1:55 am-8:15 pm

2 stops31h 20m

$1,279

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Wed 9/2

6:15 am-6:45 pm

2 stops47h 30m

Incheon Intl

Mon 9/14

8:45 pm-10:56 am

2 stops27h 11m

$1,283

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Fri 9/4

6:05 am-6:45 pm

2 stops47h 40m

Incheon Intl

Sun 9/13

8:45 pm-9:13 pm

2 stops37h 28m

$1,334

Flights are sorted by cheapest round-trip flights first.

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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 April is another great option to travel to Seoul, with average flight prices from Washington, D.C. averaging around $247.

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 $1,231. 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 $1,445.

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 $1,300 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 $1,332 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 from Washington, D.C. 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 $1,677 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 20% 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 May 2026, prices for Washington, D.C. to Seoul flights are approximately 32% 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	$682
Fastest flight time	15h 10m
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 $682. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $1,363.

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

Direct flights go from Washington, D.C. to Seoul every day.

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 8 as of May 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 49.44% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 23.34%, Boeing 777 at 13.92%, and Boeing 787-8 Dreamliner at 12.60%.
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 28% of all bookings. The subsequent popular airlines are AIR PREMIA at 22%, Korean Air at 18%, and Air Canada at 16%.

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 9,751 reviews	Search United Airlines flights
Delta	PriceFrom $392	Free Cancellation	Rating 7.9 8,425 reviews	Search Delta flights
AIR PREMIA	PriceFrom $595	Free Cancellation	Rating 8.1 94 reviews	Search AIR PREMIA flights
Air Canada	PriceFrom $685	Free Cancellation	Rating 7.1 11,092 reviews	Search Air Canada flights
American Airlines	PriceFrom $716	Free Cancellation	Rating 7.1 11,639 reviews	Search American Airlines flights
Air China	PriceFrom $729	Free Cancellation	Rating 7.3 152 reviews	Search Air China flights
Turkish Airlines	PriceFrom $929	Free Cancellation	Rating 7.4 4,396 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $1,385	Free Cancellation	Rating 8.4 1,217 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 $1,679. Our users have rated Korean Air at 8.4/10.
AIR PREMIA Flights From Washington, D.C. to Seoul
AIR PREMIA is also a popular choice for this route. AIR PREMIA flight deals for Washington, D.C. to Seoul start from as low as $595 round-trip, depending on your selected dates, with average AIR PREMIA deals seen on momondo around $1,298. AIR PREMIA operates 4 flights to Seoul from Washington, D.C. in an average week. Users have rated it 8.1/10 across 94 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 $481

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 8/5. 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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Finnair flights from Washington, D.C. to Seoul

Our best Finnair 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 from Washington, D.C. 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

AIR PREMIA 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

Fly your favorite airline to Seoul

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

Cabin classes currently available on flights to Seoul

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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