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Cheap flights from Washington, D.C. to Seoul from $423

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 11/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:01 pm - 5:20 amDCA-ICN
22h 19m1 stop
Multiple Airlines Logo
6:55 pm - 4:59 pmICN-DCA
36h 04m2 stops
$1,020Multiple Airlines
Find Deal
mié., ene. 7 - mié., feb. 4
Turkish Airlines Logo
9:15 pm - 9:05 amIAD-ICN
21h 50m1 stop
Turkish Airlines Logo
12:10 am - 8:20 pmICN-IAD
33h 10m1 stop
$1,022Turkish Airlines
Find Deal
jue., ene. 29 - mar., mar. 24
Turkish Airlines Logo
9:15 pm - 9:05 amIAD-ICN
21h 50m1 stop
Turkish Airlines Logo
11:20 pm - 7:45 pmICN-IAD
33h 25m1 stop
$1,023Turkish Airlines
Find Deal
mié., feb. 4 - mié., may. 6
Turkish Airlines Logo
1:30 pm - 6:20 pmIAD-ICN
38h 50m1 stop
Turkish Airlines Logo
12:10 am - 7:20 pmICN-IAD
33h 10m1 stop
$1,025Turkish Airlines
Find Deal
lun., dic. 1 - lun., dic. 15
Delta Logo
6:00 am - 4:50 pmBWI-ICN
20h 50m1 stop
Delta Logo
7:40 pm - 11:42 pmICN-BWI
18h 02m1 stop
$1,122Delta
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jue., ene. 8 - vie., ene. 30
Delta Logo
6:00 am - 4:30 pmBWI-ICN
20h 30m2 stops
Delta Logo
7:30 pm - 12:45 amICN-BWI
19h 15m2 stops
$1,126Delta
Find Deal
mié., ene. 7 - dom., feb. 1
American Airlines Logo
3:41 pm - 4:45 pmBWI-ICN
35h 04m1 stop
American Airlines Logo
7:15 pm - 11:10 pmICN-BWI
17h 55m1 stop
$1,130American Airlines
Find Deal
dom., ene. 11 - mar., feb. 3
United Airlines Logo
8:42 am - 5:40 amBWI-ICN
30h 58m1 stop
United Airlines Logo
12:45 pm - 3:07 pmICN-BWI
40h 22m2 stops
$1,142United Airlines
Find Deal
mié., feb. 4 - mié., feb. 18
Japan Airlines Logo
7:48 am - 10:55 amBWI-GMP
37h 07m2 stops
Japan Airlines Logo
7:40 pm - 10:13 pmGMP-BWI
40h 33m2 stops
$1,217Japan Airlines
Find Deal
mar., dic. 9 - mar., dic. 16
Japan Airlines Logo
6:00 am - 10:05 pmBWI-GMP
50h 05m2 stops
Japan Airlines Logo
7:40 pm - 11:59 pmGMP-BWI
42h 19m2 stops
$1,332Japan Airlines
Find Deal
jue., ene. 8 - dom., feb. 1

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

Our best Turkish Airlines deals on Washington, D.C. to Seoul flight tickets
Turkish Airlines
Jan 29
IAD9:15 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
ICN9:05 amIncheon Intl
Mar 24
ICN12:10 amIncheon Intl
33h 10m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$1,022
Find similar
Turkish Airlines
Feb 4
IAD9:15 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
ICN9:05 amIncheon Intl
May 6
ICN11:20 pmIncheon Intl
33h 25m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
$1,023
Find similar
Turkish Airlines
Dec 1
IAD1:30 pmWashington, D.C. Dulles Intl
38h 50m
1 stop
ICN6:20 pmIncheon Intl
Dec 15
ICN12:10 amIncheon Intl
33h 10m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$1,025
Find similar

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

Our best Alaska Airlines deals on Washington, D.C. to Seoul flight tickets
Alaska Airlines
Jan 10
DCA6:56 pmWashington, D.C. Reagan-National
33h 39m
2 stops
ICN6:35 pmIncheon Intl
Jan 30
ICN8:35 pmIncheon Intl
35h 21m
2 stops
DCA5:56 pmWashington, D.C. Reagan-National
$1,115
Find similar
Alaska Airlines
Jan 7
DCA6:56 pmWashington, D.C. Reagan-National
33h 39m
2 stops
ICN6:35 pmIncheon Intl
Jan 31
ICN8:35 pmIncheon Intl
35h 21m
2 stops
DCA5:56 pmWashington, D.C. Reagan-National
$1,133
Find similar
Alaska Airlines
Jan 7
DCA6:56 pmWashington, D.C. Reagan-National
33h 39m
2 stops
ICN6:35 pmIncheon Intl
Feb 2
ICN8:35 pmIncheon Intl
35h 21m
2 stops
DCA5:56 pmWashington, D.C. Reagan-National
$1,140
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 noviembre 12, 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

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

mié. 1/7

5:01 pm-5:20 am

1 stop22h 19m

Incheon Intl

mié. 2/4

6:55 pm-4:59 pm

2 stops36h 04m

$1,020

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

jue. 1/29

9:15 pm-9:05 am

1 stop21h 50m

Incheon Intl

mar. 3/24

12:10 am-8:20 pm

1 stop33h 10m

$1,022

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

mié. 2/4

9:15 pm-9:05 am

1 stop21h 50m

Incheon Intl

mié. 5/6

11:20 pm-7:45 pm

1 stop33h 25m

$1,023

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

lun. 12/1

1:30 pm-6:20 pm

1 stop38h 50m

Incheon Intl

lun. 12/15

12:10 am-7:20 pm

1 stop33h 10m

$1,025

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

jue. 1/8

6:00 am-4:50 pm

1 stop20h 50m

Incheon Intl

vie. 1/30

7:40 pm-11:42 pm

1 stop18h 02m

$1,122

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

mié. 1/7

6:00 am-4:30 pm

2 stops20h 30m

Incheon Intl

dom. 2/1

7:30 pm-12:45 am

2 stops19h 15m

$1,126

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

dom. 1/11

3:41 pm-4:45 pm

1 stop35h 04m

Incheon Intl

mar. 2/3

7:15 pm-11:10 pm

1 stop17h 55m

$1,130

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

mié. 2/4

8:42 am-5:40 am

1 stop30h 58m

Incheon Intl

mié. 2/18

12:45 pm-3:07 pm

2 stops40h 22m

$1,142

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

mar. 12/9

7:48 am-10:55 am

2 stops37h 07m

Seoul Gimpo Intl

mar. 12/16

7:40 pm-10:13 pm

2 stops40h 33m

$1,217

BaltimoreSeoul

BWI - GMP

BWIGMP

Baltimore/Washington

jue. 1/8

6:00 am-10:05 pm

2 stops50h 05m

Seoul Gimpo Intl

dom. 2/1

7:40 pm-11:59 pm

2 stops42h 19m

$1,332

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 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 March is another great option to travel to Seoul, with average flight prices from Washington, D.C. averaging around $1,062.

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 $1,384. 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 $1,629.

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. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,689 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 $1,776 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 $1,376 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 11% 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 November 2025, prices for Washington, D.C. to Seoul flights are approximately 46% 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

$617

Fastest flight time

15h 25m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from Washington, D.C. in the past 72 hours is $617. The best round-trip flight deal from Washington, D.C. to Seoul found on momondo in the last 72 hours is $1,252.
The fastest flight from Washington, D.C. to Seoul takes 15h 25m
Direct flights go from Washington, D.C. to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
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  • 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 19h 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?

  • 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
9,015 reviews
Search United Airlines flights
DeltaPriceFrom $397Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Air ChinaPriceFrom $591Free CancellationRating
7.1
122 reviews
Search Air China flights
American AirlinesPriceFrom $716Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
Asiana AirlinesPriceFrom $759Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom $791Free CancellationRating
7.3
4,043 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $864Free CancellationRating
7.1
10,442 reviews
Search Air Canada flights
Korean AirPriceFrom $1,059Free CancellationRating
8.4
1,163 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 $1,747. 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 $397 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,621. Delta operates 7 flights to Seoul from Washington, D.C. in an average week. Users have rated it 7.9/10 across 8,008 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