Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to Seoul from $425

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 3/25. 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.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:46 pm - 6:35 pm
BWI
-
ICN
33h 49m
1 stop
Multiple Airlines Logo
9:20 pm - 5:46 pm
ICN
-
BWI
33h 26m
2 stops
$968Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:00 pm - 1:20 pm
IAD
-
ICN
25h 20m
1 stop
Multiple Airlines Logo
6:55 pm - 12:31 am
ICN
-
IAD
42h 36m
2 stops
$985Multiple Airlines
Fri, Mar 6 - Mon, Mar 16
Multiple Airlines Logo
6:59 pm - 8:30 pm
DCA
-
ICN
35h 31m
1 stop
Multiple Airlines Logo
9:20 pm - 9:59 pm
ICN
-
DCA
38h 39m
2 stops
$997Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
Multiple Airlines Logo
7:05 am - 6:35 pm
IAD
-
ICN
22h 30m
1 stop
Multiple Airlines Logo
9:20 pm - 5:40 am
ICN
-
IAD
45h 20m
2 stops
$998Multiple Airlines
Thu, Mar 12 - Tue, Mar 17
Turkish Airlines Logo
9:15 pm - 6:20 pm
IAD
-
ICN
31h 05m
1 stop
Turkish Airlines Logo
12:10 am - 7:20 pm
ICN
-
IAD
33h 10m
1 stop
$1,035Turkish Airlines
Tue, Feb 3 - Mon, Feb 16
Air China Logo
10:00 pm - 1:05 pm
IAD
-
GMP
25h 05m
1 stop
Air China Logo
2:25 pm - 6:30 pm
GMP
-
IAD
18h 05m
1 stop
$1,128Air China
Tue, Jan 27 - Fri, Jan 30
Japan Airlines Logo
7:55 pm - 9:50 pm
BWI
-
GMP
36h 55m
2 stops
Japan Airlines Logo
7:55 am - 11:47 pm
GMP
-
BWI
28h 52m
2 stops
$1,200Japan Airlines
Thu, Apr 9 - Thu, Apr 23
Japan Airlines Logo
6:52 am - 9:50 pm
BWI
-
GMP
49h 58m
2 stops
Japan Airlines Logo
7:20 pm - 5:56 pm
GMP
-
BWI
35h 36m
2 stops
$1,207Japan Airlines
Sun, Apr 5 - Tue, Apr 21
Air China Logo
11:00 pm - 1:05 pm
IAD
-
GMP
25h 05m
1 stop
Air China Logo
8:35 am - 7:30 pm
GMP
-
IAD
23h 55m
1 stop
$1,263Air China
Tue, Mar 10 - Tue, Mar 31
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
ANA Logo
7:55 pm - 2:14 pm
GMP
-
DCA
31h 19m
2 stops
$1,663ANA
Tue, Apr 7 - Tue, Apr 21

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

Our best Air Canada deals on Washington, D.C. to Seoul flight tickets
Air Canada
Jan 19
IAD10:06 pmWashington, D.C. Dulles Intl
27h 54m
2 stops
ICN4:00 pmIncheon Intl
Feb 3
ICN8:10 pmIncheon Intl
33h 39m
1 stop
IAD3:49 pmWashington, D.C. Dulles Intl
$1,128
Air Canada
Apr 7
DCA9:40 amWashington, D.C. Reagan-National
18h 50m
1 stop
ICN5:30 pmIncheon Intl
Jul 7
ICN6:00 pmIncheon Intl
34h 38m
1 stop
DCA3:38 pmWashington, D.C. Reagan-National
$1,133
Air Canada
Apr 7
DCA6:00 amWashington, D.C. Reagan-National
22h 30m
2 stops
ICN5:30 pmIncheon Intl
Jul 7
ICN6:00 pmIncheon Intl
29h 18m
1 stop
DCA10:18 amWashington, D.C. Reagan-National
$1,136

Delta flights from Washington, D.C. to Seoul

Our best Delta deals on Washington, D.C. to Seoul flight tickets
Delta
Feb 26
BWI6:05 amBaltimore/Washington
19h 25m
1 stop
ICN3:30 pmIncheon Intl
Apr 1
ICN4:25 pmIncheon Intl
17h 02m
1 stop
BWI8:27 pmBaltimore/Washington
$1,113
Delta
Apr 7
BWI6:00 amBaltimore/Washington
19h 10m
1 stop
ICN2:10 pmIncheon Intl
Apr 18
ICN7:20 pmIncheon Intl
23h 42m
1 stop
BWI6:02 amBaltimore/Washington
$1,123
Delta
Feb 21
BWI5:25 pmBaltimore/Washington
33h 25m
1 stop
ICN4:50 pmIncheon Intl
Mar 8
ICN7:40 pmIncheon Intl
23h 11m
1 stop
BWI5:51 amBaltimore/Washington
$1,128

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Tue 3/3

6:46 pm-6:35 pm

1 stop33h 49m

Incheon Intl

Tue 3/10

9:20 pm-5:46 pm

2 stops33h 26m

$968

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 3/6

10:00 pm-1:20 pm

1 stop25h 20m

Incheon Intl

Mon 3/16

6:55 pm-12:31 am

2 stops42h 36m

$985

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 2/26

6:59 pm-8:30 pm

1 stop35h 31m

Incheon Intl

Thu 3/5

9:20 pm-9:59 pm

2 stops38h 39m

$997

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 3/12

7:05 am-6:35 pm

1 stop22h 30m

Incheon Intl

Tue 3/17

9:20 pm-5:40 am

2 stops45h 20m

$998

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 2/3

9:15 pm-6:20 pm

1 stop31h 05m

Incheon Intl

Mon 2/16

12:10 am-7:20 pm

1 stop33h 10m

$1,035

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 1/27

10:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Fri 1/30

2:25 pm-6:30 pm

1 stop18h 05m

$1,128

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Thu 4/9

7:55 pm-9:50 pm

2 stops36h 55m

Seoul Gimpo Intl

Thu 4/23

7:55 am-11:47 pm

2 stops28h 52m

$1,200

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

Sun 4/5

6:52 am-9:50 pm

2 stops49h 58m

Seoul Gimpo Intl

Tue 4/21

7:20 pm-5:56 pm

2 stops35h 36m

$1,207

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 3/10

11:00 pm-1:05 pm

1 stop25h 05m

Seoul Gimpo Intl

Tue 3/31

8:35 am-7:30 pm

1 stop23h 55m

$1,263

Washington, D.C.Seoul

DCA - GMP

DCAGMP

Washington, D.C. Reagan-National

Tue 4/7

3:30 pm-11:05 am

2 stops30h 35m

Seoul Gimpo Intl

Tue 4/21

7:55 pm-2:14 pm

2 stops31h 19m

$1,663

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 January is another great option to travel to Seoul, with average flight prices from Washington, D.C. averaging around $1,204.

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 $1,287. 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 $1,574.

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 $1,367 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 $1,572 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 $1,782 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 $1,415 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?

You could potentially save up to 21% 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?

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

$541

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 $541. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $1,097.
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?

  • 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
United AirlinesPriceFrom $317Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights
DeltaPriceFrom $392Free CancellationRating
7.9
8,040 reviews
Search Delta flights
Air ChinaPriceFrom $591Free CancellationRating
7.2
136 reviews
Search Air China flights
AIR PREMIAPriceFrom $611Free CancellationRating
8.3
77 reviews
Search AIR PREMIA flights
American AirlinesPriceFrom $716Free CancellationRating
7.2
11,119 reviews
Search American Airlines flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.1
502 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $791Free CancellationRating
7.3
4,165 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $1,016Free CancellationRating
7.1
10,619 reviews
Search Air Canada flights
Korean AirPriceFrom $1,059Free CancellationRating
8.4
1,187 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 $1,059 round-trip, up to an average price of $1,740. 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 $1,610. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 7.9/10 across 8,040 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 2/12
Thu 2/19
By creating a price alert you accept our terms of use and privacy policy.

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
Seoul Gimpo Intl Airport
Incheon Intl Airport