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Washington, D.C.

$479+ Cheap flights from South Korea to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — WAS
avr. 23 — avr. 301
jeu. 4/23
jeu. 4/30
1 adult, Economy
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Cheap flight deals from South Korea to Washington, D.C.

Cheapest flights from South Korea to Washington, D.C.
Explore the most affordable flight options available from South Korea to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 24, 2026.

This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/25:50 pm
ICN
-
IAD
1 stop37h 04m
American Airlines
dim. 10/186:41 pm
IAD
-
ICN
1 stop32h 04m
American Airlines
Deal found 3/24$608
This YBTour deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/227:35 pm
ICN
-
IAD
1 stop17h 34m
Alaska Airlines
mer. 4/297:20 pm
IAD
-
ICN
1 stop33h 10m
Alaska Airlines
Deal found 3/23$614
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/287:20 pm
ICN
-
BWI
1 stop23h 43m
Delta
mer. 10/146:19 am
BWI
-
ICN
1 stop22h 01m
Delta
Deal found 3/23$615
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/287:40 pm
ICN
-
BWI
1 stop17h 04m
Delta
jeu. 10/157:10 am
BWI
-
ICN
1 stop19h 10m
Delta
Deal found 3/24$618
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/26:50 pm
ICN
-
BWI
1 stop16h 52m
Delta
jeu. 10/157:10 am
BWI
-
ICN
1 stop19h 10m
Delta
Deal found 3/24$631
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/84:50 pm
ICN
-
BWI
1 stop27h 23m
United Airlines
mar. 10/206:31 pm
BWI
-
ICN
1 stop20h 49m
United Airlines
Deal found 3/23$641
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 11/206:30 pm
ICN
-
IAD
1 stop18h 30m
United Airlines
lun. 11/2310:08 am
IAD
-
ICN
2 stops29h 32m
United Airlines
Deal found 3/22$641
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 11/206:30 pm
ICN
-
DCA
1 stop18h 01m
United Airlines
lun. 11/236:00 pm
DCA
-
ICN
1 stop21h 40m
United Airlines
Deal found 3/22$641
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/911:30 am
ICN
-
IAD
1 stop23h 49m
United Airlines
lun. 9/75:41 pm
IAD
-
ICN
2 stops21h 39m
United Airlines
Deal found 3/21$643
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/126:00 pm
ICN
-
BWI
1 stop25h 52m
United Airlines
lun. 11/166:05 am
BWI
-
ICN
2 stops57h 35m
United Airlines
Deal found 3/23$644
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2312:45 pm
ICN
-
IAD
1 stop23h 58m
United Airlines
lun. 1/112:36 pm
IAD
-
ICN
1 stop25h 04m
United Airlines
Deal found 3/20$644
This Alaska Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/47:35 pm
ICN
-
IAD
1 stop17h 24m
Alaska Airlines
dim. 9/69:00 am
IAD
-
ICN
1 stop19h 30m
Alaska Airlines
Deal found 3/21$653

Find flight deals from South Korea to Washington, D.C.

Keep the following information in mind while searching for South Korea to Washington, D.C. flight deals. Data was last updated mars 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$614
(YBTour)

One-way from

$479
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,202

Good round-trip deal

$898 or less

Good one-way deal

$628 or less
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.
Search Deals
From South Korea to Washington, D.C. (WAS)
Search Deals
One-way flight from South Korea to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($291 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($82 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from South Korea to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from South Korea to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea to Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated mars 24, 2026.
Use the filters below to find and compare flights from South Korea to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

lun. 9/7

7:20 pm-6:03 am

1 stop23h 43m

Baltimore/Washington

ven. 9/18

6:19 am-5:20 pm

1 stop22h 01m

$719

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mer. 5/6

4:50 pm-10:27 pm

1 stop18h 37m

Washington, D.C. Dulles Intl

mer. 5/13

2:37 pm-4:20 am

2 stops24h 43m

$867

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

jeu. 4/23

4:50 pm-6:00 am

1 stop26h 10m

Baltimore/Washington

dim. 4/26

6:05 am-4:20 am

1 stop33h 15m

$936

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mer. 6/3

4:50 pm-5:27 am

2 stops25h 37m

Washington, D.C. Dulles Intl

mer. 9/2

10:23 pm-3:00 pm

2 stops27h 37m

$1,020

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

ven. 5/1

11:30 am-12:33 am

2 stops26h 03m

Washington, D.C. Dulles Intl

sam. 5/9

5:55 pm-4:20 am

1 stop21h 25m

$1,022

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mer. 4/15

4:50 pm-10:18 pm

1 stop18h 28m

Washington, D.C. Dulles Intl

mer. 7/8

5:41 pm-4:20 am

2 stops21h 39m

$1,033

BusanWashington, D.C.

PUS - IAD

PUSIAD

Busan Gimhae

sam. 9/12

8:00 pm-7:28 am

2 stops24h 28m

Washington, D.C. Dulles Intl

jeu. 9/17

5:38 pm-9:30 am

2 stops26h 52m

$1,040

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

sam. 6/6

12:40 pm-8:06 pm

1 stop20h 26m

Washington, D.C. Reagan-National

lun. 9/7

6:59 pm-4:55 am

1 stop20h 56m

$1,056

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

jeu. 4/16

7:00 pm-6:00 am

2 stops24h 00m

Baltimore/Washington

jeu. 7/9

7:00 am-5:50 pm

1 stop21h 50m

$1,093

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

mer. 4/15

12:25 pm-8:17 pm

2 stops20h 52m

Baltimore/Washington

jeu. 7/9

8:10 am-5:50 pm

1 stop20h 40m

$1,094

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from South Korea to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from South Korea with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Korea to Washington, D.C.

What is the cheapest month to book a flight from South Korea to Washington, D.C.?

Currently, October is the cheapest month in which you can book a flight from South Korea to Washington, D.C. (average of $389). Flying from South Korea to Washington, D.C. in July is currently the most expensive (average of $917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KR to WAS?

Find hourly flight availability from South Korea to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mars 24, 2026.

It’s typically best to fly out from South Korea to Washington, D.C. in the afternoon. Doing so could potentially save you 42% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from South Korea to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from South Korea to Washington, D.C.. Price data was last updated on March 23, 2026.

Travelers seeking maximum savings on their South Korea to Washington, D.C. flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from South Korea to Washington, D.C.

Explore weekly flight availability from South Korea to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated mars 24, 2026.

The most flights from KR0 to WAS are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from South Korea to Washington, D.C. delayed?

About 14% of weekly flights between South Korea and Washington, D.C. have experienced delays in the past year, with the average delay time being 107 minutes.

What is the most punctual flight time for South Korea to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on South Korea to Washington, D.C. flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 14% of flights being delayed.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated mars 24, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andDelta from South Korea to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,202 reviews
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.1
Very good
506 reviews
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,322 reviews
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,471 reviews
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,837 reviews
Korean Air
8.4
Very good
1,202 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from South Korea to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from South Korea to Washington, D.C.?

    Airlines like United Airlines, Delta, and EVA Air fly from South Korea to Washington, D.C. in about 21h 40m. The time it takes to get you to your destination can typically vary by up to 9h 43m. The distance from South Korea to Washington, D.C. is about 6925 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from South Korea to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from South Korea to Washington, D.C. are United Airlines ($460), American Airlines ($551), and AIR PREMIA ($568).

  • What are the most popular routes from South Korea to Washington, D.C.?

    While some choose either Incheon Intl - Baltimore/Washington or Incheon Intl - Washington, D.C. Reagan-National, Incheon Intl - Washington, D.C. Dulles Intl is the most popular route from South Korea to Washington, D.C..

  • What are the cheapest flights from South Korea to Washington, D.C.?

    Looking for the cheapest flight from South Korea to Washington, D.C.? While on average our users pay $864, our data indicates the cheapest price to be $488. The most popular route (Incheon Intl - Washington, D.C. Dulles Intl), is priced around $801.

  • Can I find deals for flights from South Korea to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on South Korea to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Korea to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to Washington, D.C..

  • Can I find deals for business class flights from South Korea to Washington, D.C.?

    Yes. Cheapflights offers flight deals from South Korea to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Korea to Washington, D.C.?

    Currently, October is the cheapest month in which you can book a flight from South Korea to Washington, D.C. (average of $389). Flying from South Korea to Washington, D.C. in July is currently the most expensive (average of $917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from South Korea to Washington, D.C.

Discover the top 5 airlines that operate flights from South Korea to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$783FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$917FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,536FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$876Average$1,088FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,095Average$1,437FlexibilityNo cancel feeOn-time81%

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