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Cheap flights from Washington, D.C. to Seoul from $350

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 10/11. 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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Find the cheapest flights from Washington, D.C. to Seoul

Cheap round-trip flights

Logo
5:45 am - 10:00 pmBWI-ICN
27h 15m2 stops
Logo
12:45 pm - 10:33 pmICN-BWI
22h 48m2 stops
$686
Find Deal
dom., sep. 14 - sáb., oct. 11
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
$729Air China
Find Deal
mar., sep. 2 - mar., oct. 14
Air China Logo
11:00 pm - 9:45 pmIAD-ICN
33h 45m1 stop
Air China Logo
1:05 pm - 7:30 pmICN-IAD
19h 25m1 stop
$730Air China
Find Deal
vie., ago. 29 - mar., sep. 16
Turkish Airlines Logo
9:40 pm - 5:40 pmIAD-ICN
31h 00m1 stop
Turkish Airlines Logo
10:20 am - 11:45 amICN-IAD
38h 25m1 stop
$825Turkish Airlines
Find Deal
lun., ago. 25 - vie., ago. 29
Turkish Airlines Logo
1:30 pm - 8:40 amIAD-ICN
30h 10m1 stop
Turkish Airlines Logo
11:20 pm - 11:45 amICN-IAD
25h 25m1 stop
$969Turkish Airlines
Find Deal
sáb., ago. 23 - vie., ago. 29
Air Canada Logo
9:40 am - 6:25 pmDCA-ICN
18h 45m1 stop
Air Canada Logo
6:55 pm - 10:26 amICN-DCA
29h 31m2 stops
$979Air Canada
Find Deal
mié., ene. 7 - mié., feb. 11
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
Air Canada Logo
6:55 pm - 4:13 pmICN-IAD
35h 18m2 stops
$979Air Canada
Find Deal
mié., ene. 7 - mié., ene. 14
Hawaiian Airlines Logo
8:00 am - 6:35 pmDCA-ICN
21h 35m1 stop
Hawaiian Airlines Logo
8:35 pm - 9:59 pmICN-DCA
39h 24m1 stop
$1,110Hawaiian Airlines
Find Deal
mié., oct. 22 - sáb., nov. 8
Japan Airlines Logo
6:00 am - 10:45 amBWI-GMP
39h 45m2 stops
Japan Airlines Logo
7:50 am - 6:42 pmGMP-BWI
24h 52m2 stops
$1,184Japan Airlines
Find Deal
mié., oct. 15 - jue., nov. 13
Japan Airlines Logo
6:00 am - 10:45 amBWI-GMP
39h 45m2 stops
Japan Airlines Logo
7:50 am - 7:19 pmGMP-BWI
25h 29m2 stops
$1,185Japan Airlines
Find Deal
mié., oct. 22 - sáb., nov. 8

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 7
DCA9:40 amWashington, D.C. Reagan-National
18h 45m
1 stop
ICN6:25 pmIncheon Intl
Feb 11
ICN6:55 pmIncheon Intl
29h 31m
2 stops
DCA10:26 amWashington, D.C. Reagan-National
$979
Find similar
Air Canada
Sep 6
IAD5:37 pmWashington, D.C. Dulles Intl
33h 28m
2 stops
ICN4:05 pmIncheon Intl
Sep 14
ICN6:00 pmIncheon Intl
28h 38m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
$981
Find similar
Air Canada
Jan 7
IAD9:00 amWashington, D.C. Dulles Intl
19h 25m
1 stop
ICN6:25 pmIncheon Intl
Feb 12
ICN8:10 pmIncheon Intl
33h 44m
1 stop
IAD3:54 pmWashington, D.C. Dulles Intl
$986
Find similar

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

Our best Air China deals on Washington, D.C. to Seoul flight tickets
Air China
Sep 2
IAD11:00 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
ICN4:35 pmIncheon Intl
Oct 14
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$729
Find similar
Air China
Aug 29
IAD11:00 pmWashington, D.C. Dulles Intl
33h 45m
1 stop
ICN9:45 pmIncheon Intl
Sep 16
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$730
Find similar
Air China
Sep 5
IAD11:00 pmWashington, D.C. Dulles Intl
33h 45m
1 stop
ICN9:45 pmIncheon Intl
Sep 16
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$750
Find similar

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 julio 31, 2025.
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

dom. 9/14

5:45 am-10:00 pm

2 stops27h 15m

Incheon Intl

sáb. 10/11

12:45 pm-10:33 pm

2 stops22h 48m

$686

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mar. 9/2

11:00 pm-4:35 pm

1 stop28h 35m

Incheon Intl

mar. 10/14

1:05 pm-7:30 pm

1 stop19h 25m

$729

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

vie. 8/29

11:00 pm-9:45 pm

1 stop33h 45m

Incheon Intl

mar. 9/16

1:05 pm-7:30 pm

1 stop19h 25m

$730

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

lun. 8/25

9:40 pm-5:40 pm

1 stop31h 00m

Incheon Intl

vie. 8/29

10:20 am-11:45 am

1 stop38h 25m

$825

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

sáb. 8/23

1:30 pm-8:40 am

1 stop30h 10m

Incheon Intl

vie. 8/29

11:20 pm-11:45 am

1 stop25h 25m

$969

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mié. 1/7

9:40 am-6:25 pm

1 stop18h 45m

Incheon Intl

mié. 2/11

6:55 pm-10:26 am

2 stops29h 31m

$979

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mié. 1/7

9:00 am-6:25 pm

1 stop19h 25m

Incheon Intl

mié. 1/14

6:55 pm-4:13 pm

2 stops35h 18m

$979

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mié. 10/22

8:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

sáb. 11/8

8:35 pm-9:59 pm

1 stop39h 24m

$1,110

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

mié. 10/15

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

jue. 11/13

7:50 am-6:42 pm

2 stops24h 52m

$1,184

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

mié. 10/22

6:00 am-10:45 am

2 stops39h 45m

Seoul Gimpo Intl

sáb. 11/8

7:50 am-7:19 pm

2 stops25h 29m

$1,185

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $1,041.

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 $1,483. 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 $1,654.

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 $1,698 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 $1,434 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 $999 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 15% 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 July 2025, prices for Washington, D.C. to Seoul flights are approximately 11% 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

$350

Fastest flight time

17h 35m

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 $350. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $686.
The fastest flight from Washington, D.C. to Seoul takes 17h 35m
Direct flights go from Washington, D.C. to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
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 17h 35m.

  • 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 $367Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Air ChinaPriceFrom $591Free CancellationRating
7.3
93 reviews
Search Air China flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.2
468 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $800Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $864Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
American AirlinesPriceFrom $876Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $877Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Korean AirPriceFrom $1,074Free CancellationRating
8.4
1,121 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 $1,074 round-trip, up to an average price of $1,732. 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 $1,829. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 8.0/10 across 7,981 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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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