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Washington, D.C.

$436+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — WAS
Aug 11 — Aug 181
Tue 8/11
Tue 8/18
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 July 12, 2026.

This United Airlines deal was found by Cheapflights users on 7/10. 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.
Tue 9/224:50 pm
ICN
-
BWI
2 stops30h 49m
United Airlines
Tue 9/298:00 am
BWI
-
ICN
1 stop31h 20m
United Airlines
Deal found 7/10$688
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Mon 11/912:45 pm
ICN
-
IAD
1 stop17h 23m
United Airlines
Tue 11/105:28 pm
IAD
-
ICN
2 stops32h 57m
United Airlines
Deal found 7/10$688
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Mon 11/912:45 pm
ICN
-
DCA
2 stops20h 07m
United Airlines
Tue 11/108:00 pm
DCA
-
ICN
1 stop30h 25m
United Airlines
Deal found 7/10$688
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Mon 8/244:50 pm
ICN
-
IAD
1 stop21h 07m
United Airlines
Mon 8/316:42 am
IAD
-
ICN
1 stop19h 18m
United Airlines
Deal found 7/11$689
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 12/246:00 pm
ICN
-
BWI
1 stop25h 52m
United Airlines
Fri 1/86:31 pm
BWI
-
ICN
1 stop21h 09m
United Airlines
Deal found 7/11$690
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Mon 12/2112:45 pm
ICN
-
IAD
1 stop26h 39m
United Airlines
Wed 1/65:55 pm
IAD
-
ICN
1 stop21h 45m
United Airlines
Deal found 7/10$690
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Fri 10/165:15 pm
ICN
-
DCA
1 stop17h 44m
United Airlines
Mon 10/263:30 pm
DCA
-
ICN
2 stops24h 10m
United Airlines
Deal found 7/11$690
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Mon 9/74:50 pm
ICN
-
BWI
1 stop27h 25m
United Airlines
Fri 9/186:52 pm
BWI
-
ICN
1 stop20h 28m
United Airlines
Deal found 7/11$698
This flugladen.de deal was found by Cheapflights users on 7/10. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Fri 9/111:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Deal found 7/10$737
This oojo deal was found by Cheapflights users on 7/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Mon 8/311:20 pm
IAD
-
ICN
Nonstop15h 35m
AIR PREMIA
Deal found 7/10$739
This oojo deal was found by Cheapflights users on 7/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:00 am
ICN
-
IAD
Nonstop13h 50m
AIR PREMIA
Mon 11/211:35 pm
IAD
-
ICN
Nonstop15h 50m
AIR PREMIA
Deal found 7/11$740
This KAYAK deal was found by Cheapflights users on 7/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:50 pm
ICN
-
BWI
1 stop27h 41m
Asiana Airlines
Wed 11/46:35 pm
BWI
-
ICN
1 stop21h 05m
Asiana Airlines
Deal found 7/10$747

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 July 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$688
(United Airlines)

One-way from

$436
(United Airlines)

Popular in

August

Cheapest in

November

Average price

$1,261

Good round-trip deal

$1,358 or less

Good one-way deal

$787 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. 20% potential increase in price ($262 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($81 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 12, 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

Fri 10/16

11:30 am-5:39 pm

1 stop19h 09m

Baltimore/Washington

Mon 10/26

4:16 pm-4:40 am

2 stops23h 24m

$690

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/30

5:15 pm-4:23 pm

1 stop36h 08m

Washington, D.C. Dulles Intl

Sun 10/4

6:45 am-3:20 pm

1 stop19h 35m

$693

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 12/21

6:00 pm-9:48 am

2 stops29h 48m

Washington, D.C. Dulles Intl

Wed 1/6

4:10 pm-5:40 am

1 stop23h 30m

$693

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 11/13

6:00 pm-7:25 am

1 stop27h 25m

Washington, D.C. Dulles Intl

Tue 12/1

5:20 pm-4:25 pm

1 stop33h 05m

$693

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 9/7

11:30 am-5:40 pm

1 stop19h 10m

Baltimore/Washington

Fri 9/18

6:52 pm-4:20 am

1 stop20h 28m

$698

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 10/16

5:15 pm-9:59 pm

1 stop17h 44m

Washington, D.C. Reagan-National

Mon 10/26

8:00 am-3:25 pm

1 stop18h 25m

$698

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/9

11:30 am-12:30 am

2 stops26h 00m

Washington, D.C. Dulles Intl

Sat 11/21

3:34 pm-4:25 pm

2 stops34h 51m

$766

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 10/14

11:30 am-4:18 pm

1 stop17h 48m

Washington, D.C. Dulles Intl

Wed 10/28

3:34 pm-4:40 am

2 stops24h 06m

$766

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/14

11:30 am-7:09 pm

2 stops20h 39m

Washington, D.C. Reagan-National

Wed 10/28

8:00 am-3:25 pm

1 stop18h 25m

$766

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Tue 7/28

11:30 am-5:57 pm

1 stop19h 27m

Baltimore/Washington

Tue 8/11

8:00 am-4:20 am

1 stop31h 20m

$767

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/11

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, September is the cheapest month in which you can book a flight from South Korea to Washington, D.C. (average of $275). Flying from South Korea to Washington, D.C. in July is currently the most expensive (average of $941). 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 July 12, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Korea to Washington, D.C. as you normally would.

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 July 12, 2026.

The most flights from KR0 to WAS are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, 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 12% of weekly flights between South Korea and Washington, D.C. have experienced delays in the past year, with the average delay time being 86 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?

Wednesday 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 13% of flights being delayed.

How far ahead should I book a flight from South Korea to Washington, D.C.?

The price you pay for your flight from South Korea to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 23 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 12, 2026.
Peruse reviews from past customers who have flown with Korean Air,AIR PREMIA, 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
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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 PREMIA
8.2
Very good
100 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
7.8
Good
8,459 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
9,981 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
11,332 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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 Japan Airlines fly from South Korea to Washington, D.C. in about 17h 12m. The time it takes to get you to your destination can typically vary by up to 11h 21m. The distance from South Korea to Washington, D.C. is about 6939 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 AIR PREMIA ($517), American Airlines ($551), and Delta ($655).

  • 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 most reliable airlines from South Korea to Washington, D.C.?

    The top 3 most reliable airlines when flying from South Korea to Washington, D.C. are AIR PREMIA (97%), Delta (87%) and Korean Air (87%).

  • 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 $1,298, our data indicates the cheapest price to be $713. The most popular route (Incheon Intl - Washington, D.C. Dulles Intl), is priced around $690.

  • 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, September is the cheapest month in which you can book a flight from South Korea to Washington, D.C. (average of $275). Flying from South Korea to Washington, D.C. in July is currently the most expensive (average of $941). 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Laurel
Silver Spring
Clinton
Hunt Valley
Cordova
Woodbridge

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 July 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$387Average$1,573FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$478Average$723FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$891FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$915Average$1,203FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,257Average$1,648FlexibilityNo cancel feeOn-time81%

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