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Washington, D.C.

$435+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — WAS
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This FlightHub deal was found by Cheapflights users on 2/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:45 pm
ICN
-
DCA
2 stops31h 16m
Air Canada
Mon 6/112:45 pm
DCA
-
ICN
2 stops38h 20m
Air Canada
Deal found 2/1$659
This Mytrip deal was found by Cheapflights users on 2/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:55 pm
ICN
-
IAD
2 stops54h 49m
Air Canada
Mon 3/99:00 am
IAD
-
ICN
1 stop19h 25m
Air Canada
Deal found 2/1$678
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:55 pm
ICN
-
IAD
2 stops39h 28m
Air Canada
Mon 5/118:15 am
IAD
-
ICN
2 stops42h 50m
Air Canada
Deal found 2/1$694
This FlightHub deal was found by Cheapflights users on 2/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:05 pm
ICN
-
IAD
1 stop38h 24m
Air Canada
Mon 6/14:10 pm
IAD
-
ICN
1 stop36h 20m
Air Canada
Deal found 2/1$696
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:55 pm
ICN
-
DCA
2 stops36h 10m
Air Canada
Sun 5/1012:45 pm
DCA
-
ICN
2 stops38h 20m
Air Canada
Deal found 2/1$702
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:55 pm
ICN
-
IAD
2 stops40h 28m
Air Canada
Tue 3/109:55 am
IAD
-
ICN
2 stops42h 30m
Air Canada
Deal found 2/1$723
This FlightHub deal was found by Cheapflights users on 2/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:55 pm
ICN
-
DCA
2 stops28h 00m
Air Canada
Tue 3/1012:55 pm
DCA
-
ICN
2 stops39h 30m
Air Canada
Deal found 2/1$728
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 3/67:15 pm
ICN
-
IAD
2 stops39h 15m
American Airlines
Mon 3/99:19 am
IAD
-
ICN
2 stops41h 36m
American Airlines
Deal found 2/1$802
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/117:15 pm
ICN
-
DCA
1 stop29h 44m
American Airlines
Mon 3/96:30 am
DCA
-
ICN
1 stop20h 25m
American Airlines
Deal found 2/2$802
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 2/197:15 pm
ICN
-
BWI
1 stop17h 44m
American Airlines
Wed 3/46:00 am
BWI
-
ICN
1 stop20h 45m
American Airlines
Deal found 2/2$806
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 2/197:15 pm
ICN
-
IAD
1 stop17h 38m
American Airlines
Wed 3/45:00 am
IAD
-
ICN
2 stops21h 45m
American Airlines
Deal found 2/2$806
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 2/197:15 pm
ICN
-
DCA
2 stops26h 29m
American Airlines
Wed 3/46:30 am
DCA
-
ICN
1 stop20h 15m
American Airlines
Deal found 2/2$806

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$659
(FlightHub)

One-way from

$374
(Trip.com)

Popular in

August

Cheapest in

November

Average price

$667

Good round-trip deal

$1,207 or less

Good one-way deal

$801 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 ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 4, 2026.
Use the filters below to find and compare flights from South Korea to Washington, D.C. that are best for you.

Fly from

South Korea

Fly to

Washington, D.C.

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 5/15

5:45 pm-12:01 pm

2 stops31h 16m

Washington, D.C. Reagan-National

Mon 6/1

12:45 pm-4:05 pm

2 stops38h 20m

$659

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sat 3/7

6:55 pm-5:05 pm

2 stops36h 10m

Washington, D.C. Reagan-National

Sun 5/10

12:45 pm-4:05 pm

2 stops38h 20m

$702

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sat 3/7

6:55 pm-7:55 am

2 stops27h 00m

Washington, D.C. Reagan-National

Wed 5/6

11:00 am-5:30 pm

1 stop17h 30m

$721

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 3/3

6:55 pm-8:55 am

2 stops28h 00m

Washington, D.C. Reagan-National

Tue 3/10

12:55 pm-5:25 pm

2 stops39h 30m

$728

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 2/19

7:15 pm-7:44 am

2 stops26h 29m

Washington, D.C. Reagan-National

Wed 3/4

6:30 am-4:45 pm

1 stop20h 15m

$806

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 5/6

11:30 am-10:44 pm

2 stops24h 14m

Baltimore/Washington

Mon 5/11

6:45 pm-3:00 pm

2 stops31h 15m

$820

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Tue 3/3

12:45 pm-11:30 am

2 stops36h 45m

Baltimore/Washington

Wed 4/8

6:05 am-3:00 pm

1 stop19h 55m

$820

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Fri 3/6

12:45 pm-7:19 am

1 stop32h 34m

Baltimore/Washington

Mon 3/9

5:04 pm-4:40 am

2 stops46h 36m

$821

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Sat 3/7

6:00 pm-6:40 am

1 stop26h 40m

Baltimore/Washington

Tue 5/5

6:05 am-3:00 pm

1 stop19h 55m

$841

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/22

11:30 am-1:17 am

1 stop26h 47m

Washington, D.C. Dulles Intl

Sun 7/26

5:55 pm-4:20 am

1 stop21h 25m

$841

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 60 results
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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 $954). 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 February 4, 2026.

It’s typically best to fly out from South Korea to Washington, D.C. in the afternoon. Doing so could potentially save you 44% 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 January 31, 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 February 4, 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 16% of weekly flights between South Korea and Washington, D.C. have experienced delays in the past year, with the average delay time being 125 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 16% 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 February 4, 2026.
Peruse reviews from past customers who have flown with Korean Air, Asiana Airlines, and Delta 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
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
502 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
8,139 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
9,236 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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
10,685 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

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 Air Canada, United Airlines, and Alaska Airlines fly from South Korea to Washington, D.C. in about 24h 14m. The time it takes to get you to your destination can typically vary by up to 9h 44m. The distance from South Korea to Washington, D.C. is about 6938 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 Breeze Airways ($31), United Airlines ($71), and Frontier ($80).

  • 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 $1,219, our data indicates the cheapest price to be $636. The most popular route (Incheon Intl - Washington, D.C. Dulles Intl), is priced around $685.

  • 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 $954). 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
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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Alternative routes for South Korea to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Hong Kong to Reagan-National flights

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$783FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$848FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,518FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$727Average$965FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,128Average$1,412FlexibilityNo cancel feeOn-time81%

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