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$40+ Cheap flights from Washington, D.C. (WAS) to Kentucky

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SDF
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Kentucky

Cheapest flights from Washington, D.C. to Kentucky
Explore the most affordable flight options available from Washington, D.C. to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:30 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 2/225:56 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/1$83
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:27 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 3/15:53 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/2$91
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/128:45 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 2/156:11 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/2$95
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/153:06 pm
IAD
-
TYS
Nonstop1h 34m
Allegiant Air
Fri 6/191:02 pm
TYS
-
IAD
Nonstop1h 27m
Allegiant Air
Deal found 1/31$99
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:27 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 3/87:20 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/1$105
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:54 am
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 3/87:20 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/2$109
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/153:06 pm
IAD
-
TYS
Nonstop1h 34m
Allegiant Air
Mon 6/221:02 pm
TYS
-
IAD
Nonstop1h 27m
Allegiant Air
Deal found 1/31$115
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/193:42 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 3/226:12 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/3$118
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:01 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Sun 4/1211:27 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Deal found 2/1$124
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/193:19 pm
IAD
-
TYS
Nonstop1h 34m
Allegiant Air
Mon 6/221:02 pm
TYS
-
IAD
Nonstop1h 27m
Allegiant Air
Deal found 1/31$125
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:00 am
BWI
-
CVG
1 stop11h 32m
Frontier
Mon 2/231:07 pm
CVG
-
BWI
1 stop11h 24m
Frontier
Deal found 2/1$133
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1112:30 pm
BWI
-
BNA
1 stop8h 18m
Spirit Airlines
Tue 3/172:27 pm
BNA
-
BWI
1 stop8h 32m
Spirit Airlines
Deal found 2/1$140

Find flight deals from Washington, D.C. to Kentucky

Keep the following information in mind while searching for Washington, D.C. to Kentucky flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$83
(Kiwi.com)

One-way from

$40
(Booking.com)

Popular in

March

Cheapest in

August

Average price

$284

Good round-trip deal

$199 or less

Good one-way deal

$174 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Louisville Intl flights.
Search Deals
From Washington, D.C. (WAS) to Kentucky
Search Deals
One-way flight from Washington, D.C. (WAS) to Kentucky
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 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 Washington, D.C. (WAS) to Kentucky.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Kentucky.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Kentucky 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 3, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Kentucky that are best for you.

Fly from

Washington, D.C.

Fly to

Kentucky

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 3/19

3:42 pm-5:22 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 3/22

6:12 pm-7:56 pm

Nonstop1h 44m

$118

BaltimoreCincinnati

BWI - CVG

BWICVG

Baltimore/Washington

Thu 2/19

10:06 am-5:32 pm

2 stops31h 26m

Cincinnati Cinci./N. Kentucky

Mon 2/23

1:07 pm-12:31 am

1 stop11h 24m

$150

BaltimoreCincinnati

BWI - CVG

BWICVG

Baltimore/Washington

Tue 4/28

9:20 pm-10:55 pm

Nonstop1h 35m

Cincinnati Cinci./N. Kentucky

Mon 5/4

5:05 pm-12:15 am

1 stop7h 10m

$162

BaltimoreNashville

BWI - BNA

BWIBNA

Baltimore/Washington

Mon 4/6

8:44 pm-1:29 pm

1 stop17h 45m

Nashville Intl

Fri 4/10

2:27 pm-8:28 am

1 stop17h 01m

$164

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 4/15

9:00 am-10:50 am

Nonstop1h 50m

Knoxville McGhee Tyson

Wed 4/22

2:25 pm-4:10 pm

Nonstop1h 45m

$183

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sun 3/8

4:42 pm-12:46 pm

1 stop20h 04m

Knoxville McGhee Tyson

Sun 3/15

6:30 am-8:14 am

Nonstop1h 44m

$183

Washington, D.C.Cincinnati

DCA - CVG

DCACVG

Washington, D.C. Reagan-National

Wed 3/18

3:04 pm-4:56 pm

Nonstop1h 52m

Cincinnati Cinci./N. Kentucky

Wed 3/25

5:26 pm-7:06 pm

Nonstop1h 40m

$188

Washington, D.C.Cincinnati

DCA - CVG

DCACVG

Washington, D.C. Reagan-National

Thu 3/12

9:57 am-11:37 am

Nonstop1h 40m

Cincinnati Cinci./N. Kentucky

Sat 3/14

7:35 am-9:09 am

Nonstop1h 34m

$189

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 2/26

9:00 am-10:49 am

Nonstop1h 49m

Knoxville McGhee Tyson

Tue 3/3

9:40 am-11:26 am

Nonstop1h 46m

$189

Washington, D.C.Cincinnati

DCA - CVG

DCACVG

Washington, D.C. Reagan-National

Fri 2/27

7:56 pm-9:48 pm

Nonstop1h 52m

Cincinnati Cinci./N. Kentucky

Sun 3/1

6:39 am-8:20 am

Nonstop1h 41m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Kentucky

Have a flexible travel schedule? Discover the best time to fly to Kentucky from Washington, D.C. 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 Washington, D.C. to Kentucky

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Kentucky (average of $155). Flying from Washington, D.C. to Kentucky in March is currently the most expensive (average of $205). 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 WAS to KY?

Find hourly flight availability from Washington, D.C. to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

When flying from Washington, D.C. to Kentucky, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 4% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Kentucky. Price data was last updated on January 31, 2026.

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

Weekly flight availability from Washington, D.C. to Kentucky

Explore weekly flight availability from Washington, D.C. to Kentucky. 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 3, 2026.

The most flights from WAS to USKY are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Washington, D.C. to Kentucky?

Reviews of airlines servicing Kentucky

Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated February 3, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Washington, D.C. to Kentucky to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,272 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,138 reviews
Southwest
8.0
Very good
4,272 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,236 reviews
Southwest
8.0
Very good
4,272 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,216 reviews
Southwest
8.0
Very good
4,272 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Kentucky. 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 Washington, D.C. to Kentucky?

    There are many flights that can get you from Washington, D.C. to Kentucky in 1h 35m. Fly via Allegiant Air, Southwest, or United Airlines to get the fastest option. The distance from Washington, D.C. to Kentucky is about 428 mi. All flights are typically nonstop.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $89. Users have also found prices from $98 and $119 on Delta and United Airlines, respectively.

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

    When deciding which route to take from Washington, D.C. to Kentucky consider Washington, D.C. Reagan-National - Nashville Intl, Washington, D.C. Dulles Intl - Nashville Intl or Baltimore/Washington - Nashville Intl as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. to Kentucky?

    Before booking your flight to Kentucky from Washington, D.C., check out the most reliable airlines to get you to your destination on time: Air Canada (72%), Copa Airlines (72%), Lufthansa( 72%).

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

    Looking for the cheapest flight from Washington, D.C. to Kentucky? While on average our users pay $321, our data indicates the cheapest price to be $138. The most popular route (Washington, D.C. Reagan-National - Nashville Intl), is priced around $161.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Kentucky 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 Washington, D.C. to Kentucky?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Kentucky (average of $155). Flying from Washington, D.C. to Kentucky in March is currently the most expensive (average of $205). 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

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Alternative routes for Washington, D.C. to Kentucky

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Washington, D.C. to Kentucky

Discover the top 4 airlines that operate flights from Washington, D.C. to Kentucky. 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$98Average$317FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$362FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$195Average$309FlexibilityNo cancel feeOn-time63%

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