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

EVA Air, Japan Airlines, and Qatar Airways are the most popular carriers operating from Washington, D.C. to Seoul

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.

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 $557.

What airlines fly to Seoul?

Korean Air, Delta and Air Canada 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 49% 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.

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

As of February 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 11:00AM, with 100% of daily flights taking off at noon.

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

Flights connecting via Honolulu (HNL) have the shortest average one-way travel time: 17h 25m.

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

As of February 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.

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

Toronto (YYZ) was the most common stop: 28% 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 19h 10m, respectively.

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 February 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.

$361 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

8:45 pm - 10:46 am

ICN

IAD

27h 01m

3 stops

$834Multiple Airlines

Fri, Apr 24 - Sun, May 3

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

8:35 am - 12:09 am

ICN

IAD

28h 34m

3 stops

$840Multiple Airlines

Fri, Apr 24 - Thu, May 7

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

9:50 am - 7:28 am

ICN

IAD

34h 38m

3 stops

$841Multiple Airlines

Sun, Aug 23 - Tue, Sep 15

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

9:10 pm - 12:14 pm

ICN

IAD

28h 04m

2 stops

$846Multiple Airlines

Fri, Apr 24 - Thu, Apr 30

11:00 pm - 1:05 pm

IAD

GMP

25h 05m

1 stop

2:25 pm - 7:30 pm

GMP

IAD

42h 05m

1 stop

$1,122Air China

Tue, Apr 7 - Mon, Apr 20

7:20 pm - 12:50 pm

IAD

GMP

28h 30m

2 stops

1:50 pm - 10:30 pm

GMP

IAD

21h 40m

1 stop

$1,165EVA Air

Wed, May 6 - Fri, Jul 3

7:20 pm - 6:10 pm

IAD

GMP

33h 50m

2 stops

1:50 pm - 10:30 pm

GMP

IAD

21h 40m

1 stop

$1,265EVA Air

Sun, May 10 - Fri, Jul 3

5:39 am - 9:15 pm

BWI

GMP

26h 36m

2 stops

8:00 am - 6:00 pm

GMP

BWI

23h 00m

2 stops

$1,319Japan Airlines

Sat, Apr 11 - Thu, Apr 23

5:55 am - 9:15 pm

DCA

GMP

26h 20m

2 stops

12:05 pm - 4:45 pm

GMP

DCA

41h 40m

2 stops

$1,320Japan Airlines

Thu, Apr 9 - Tue, Apr 21

11:00 pm - 1:05 pm

IAD

GMP

25h 05m

1 stop

2:25 pm - 7:30 pm

GMP

IAD

42h 05m

1 stop

$1,336Air China

Fri, Apr 24 - Mon, May 4

Asiana Airlines flights from Washington, D.C. to Seoul

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

Asiana Airlines

Mar 29

DCA8:40 pmWashington, D.C. Reagan-National

31h 50m

1 stop

ICN5:30 pmIncheon Intl

Apr 1

ICN7:05 pmIncheon Intl

16h 38m

1 stop

DCA10:43 pmWashington, D.C. Reagan-National

$1,153

Asiana Airlines

Apr 13

DCA9:40 amWashington, D.C. Reagan-National

18h 50m

1 stop

ICN5:30 pmIncheon Intl

Apr 28

ICN7:05 pmIncheon Intl

16h 38m

1 stop

DCA10:43 pmWashington, D.C. Reagan-National

$1,155

Asiana Airlines

Apr 27

DCA9:40 amWashington, D.C. Reagan-National

18h 50m

1 stop

ICN5:30 pmIncheon Intl

Apr 30

ICN5:45 pmIncheon Intl

34h 54m

2 stops

DCA3:39 pmWashington, D.C. Reagan-National

$1,173

American Airlines flights from Washington, D.C. to Seoul

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

American Airlines

Apr 17

BWI7:00 amBaltimore/Washington

19h 45m

1 stop

ICN3:45 pmIncheon Intl

May 1

ICN5:50 pmIncheon Intl

18h 19m

1 stop

BWI11:09 pmBaltimore/Washington

$1,164

American Airlines

Apr 30

BWI7:17 pmBaltimore/Washington

31h 28m

1 stop

ICN3:45 pmIncheon Intl

May 14

ICN5:50 pmIncheon Intl

34h 10m

1 stop

BWI3:00 pmBaltimore/Washington

$1,169

American Airlines

Mar 4

BWI6:00 amBaltimore/Washington

20h 45m

1 stop

ICN4:45 pmIncheon Intl

Mar 26

ICN5:55 pmIncheon Intl

18h 04m

1 stop

BWI10:59 pmBaltimore/Washington

$1,391

Fly from

Fly to

Route

Depart

Return

Price

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 5/3

8:45 pm-10:46 am

3 stops27h 01m

$834

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

Thu 5/7

8:35 am-12:09 am

3 stops28h 34m

$840

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 8/23

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Tue 9/15

9:50 am-7:28 am

3 stops34h 38m

$841

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

Thu 4/30

9:10 pm-12:14 pm

2 stops28h 04m

$846

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 4/7

11:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Mon 4/20

2:25 pm-7:30 pm

1 stop42h 05m

$1,122

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 5/6

7:20 pm-12:50 pm

2 stops28h 30m

Seoul Gimpo Intl

Fri 7/3

1:50 pm-10:30 pm

1 stop21h 40m

$1,165

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Sun 5/10

7:20 pm-6:10 pm

2 stops33h 50m

Seoul Gimpo Intl

Fri 7/3

1:50 pm-10:30 pm

1 stop21h 40m

$1,265

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sat 4/11

5:39 am-9:15 pm

2 stops26h 36m

Seoul Gimpo Intl

Thu 4/23

8:00 am-6:00 pm

2 stops23h 00m

$1,319

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Thu 4/9

5:55 am-9:15 pm

2 stops26h 20m

Seoul Gimpo Intl

Tue 4/21

12:05 pm-4:45 pm

2 stops41h 40m

$1,320

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Fri 4/24

11:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Mon 5/4

2:25 pm-7:30 pm

1 stop42h 05m

$1,336

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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 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 $1,234.

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 $1,261. 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 $1,517.

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

Flying to Seoul from Washington, D.C. in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,332 when looking at flights departing in the morning. At noon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,499 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 $1,765 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 $1,424 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.

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

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Seoul.

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

As of February 2026, prices for Washington, D.C. to Seoul flights are approximately 12% 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	$511
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 $511. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $1,012.

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

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 February 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 69.51% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 18.48%, Boeing 777 at 5.55%, and Boeing 787-8 Dreamliner at 3.73%.
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 24%, Air Canada at 21%, and United Airlines at 11%.

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
Delta	PriceFrom $356	Free Cancellation	Rating 7.9 8,243 reviews	Search Delta flights
United Airlines	PriceFrom $367	Free Cancellation	Rating 7.4 9,350 reviews	Search United Airlines flights
Air China	PriceFrom $591	Free Cancellation	Rating 7.2 139 reviews	Search Air China flights
AIR PREMIA	PriceFrom $595	Free Cancellation	Rating 8.2 81 reviews	Search AIR PREMIA flights
American Airlines	PriceFrom $716	Free Cancellation	Rating 7.2 11,355 reviews	Search American Airlines flights
Asiana Airlines	PriceFrom $740	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
Turkish Airlines	PriceFrom $791	Free Cancellation	Rating 7.3 4,240 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $972	Free Cancellation	Rating 7.1 10,748 reviews	Search Air Canada flights
Korean Air	PriceFrom $1,385	Free Cancellation	Rating 8.4 1,195 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 $1,764. 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 $356 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,619. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 7.9/10 across 8,243 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 $361

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 4/26. 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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Asiana Airlines flights from Washington, D.C. to Seoul

Our best Asiana Airlines 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 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

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.

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

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