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Dulles Intl

$34+ Cheap flights from Kentucky to Dulles Intl (IAD)

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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Kentucky to Dulles Intl

Cheapest flights from Kentucky to Dulles Intl
Explore the most affordable flight options available from Kentucky to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/51:39 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 2/84:13 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/21$70
This Super.com deal was found by Cheapflights users on 1/19. 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 2/126:11 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 2/158:45 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/19$83
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:53 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 3/89:54 am
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/21$84
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:30 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Thu 3/193:42 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/20$104
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:22 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 4/122:01 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/20$108
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:22 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Thu 4/92:01 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/20$114
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:20 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Thu 3/193:42 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/20$127
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:30 am
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 3/159:04 am
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/20$130
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 3/261:21 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 3/294:09 pm
IAD
-
TYS
Nonstop1h 40m
Allegiant Air
Deal found 1/19$137
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:56 pm
TYS
-
IAD
Nonstop1h 44m
Allegiant Air
Sun 2/224:40 pm
IAD
-
TYS
1 stop15h 07m
Allegiant Air
Deal found 1/20$147
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 3/127:43 pm
CVG
-
IAD
Nonstop1h 35m
United Airlines
Sat 3/1412:35 pm
IAD
-
CVG
Nonstop1h 44m
United Airlines
Deal found 1/20$180
This Frontier deal was found by Cheapflights users on 1/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:45 am
CVG
-
IAD
1 stop12h 09m
Frontier
Mon 4/134:01 pm
IAD
-
CVG
1 stop8h 36m
Frontier
Deal found 1/20$181

Find flight deals from Kentucky to Dulles Intl

Keep the following information in mind while searching for Kentucky to Dulles Intl flight deals. Data was last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$63
(Kiwi.com)

One-way from

$34
(Breeze Airways)

Popular in

January

Cheapest in

November

Average price

$311

Good round-trip deal

$329 or less

Good one-way deal

$234 or less
Provider with most accurate pricing for Louisville Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. (WAS) flights.
Search Deals
From Kentucky to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Kentucky to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($7 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 January 2026
Search Deals
Price to beat on a round-trip flight from Kentucky to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Kentucky to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to Dulles Intl 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 January 21, 2026.
Use the filters below to find and compare flights from Kentucky to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Kentucky

Fly to

Dulles Intl

Route

Depart

Return

Price

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Sun 2/8

1:39 pm-3:23 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 2/15

8:45 pm-10:25 pm

Nonstop1h 40m

$80

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Thu 3/26

1:21 pm-3:05 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 3/29

4:09 pm-5:49 pm

Nonstop1h 40m

$137

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 2/18

7:25 pm-9:11 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Mon 2/23

9:00 am-10:49 am

Nonstop1h 49m

$173

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Thu 2/19

10:20 am-11:55 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Sun 2/22

8:25 am-10:10 am

Nonstop1h 45m

$180

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Tue 3/17

7:43 pm-9:18 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Sat 3/21

10:15 pm-11:53 pm

Nonstop1h 38m

$180

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Thu 3/12

7:43 pm-9:18 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Sat 3/14

12:35 pm-2:19 pm

Nonstop1h 44m

$180

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Fri 3/13

6:00 am-7:28 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

Mon 3/16

10:15 pm-11:59 pm

Nonstop1h 44m

$180

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Tue 3/10

5:40 am-9:10 am

1 stop3h 30m

Washington, D.C. Dulles Intl

Tue 3/17

7:18 am-11:17 am

1 stop3h 59m

$183

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 2/20

9:40 am-11:26 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Mon 2/23

5:40 pm-7:29 pm

Nonstop1h 49m

$186

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Fri 7/3

6:00 am-7:32 am

Nonstop1h 32m

Washington, D.C. Dulles Intl

Fri 7/10

10:10 pm-11:49 pm

Nonstop1h 39m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
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Best time to book a flight from Kentucky to Dulles Intl

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

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

Currently, March is the cheapest month in which you can book a flight from Kentucky to Washington, D.C. Dulles Intl Airport (average of $185). Flying from Kentucky to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $259). 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 KY to IAD?

Find hourly flight availability from Kentucky to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2026.

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

Weekly flight availability from Kentucky to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Kentucky to Dulles Intl. 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 January 21, 2026.

The most flights from USKY to IAD are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

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

    There are many flights that can get you from Kentucky to Washington, D.C. Dulles Intl Airport in 1h 44m. Fly via Allegiant Air, United Airlines, or Delta to get the fastest option. The distance between Kentucky and Washington, D.C. Dulles Intl Airport is about 419 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 Kentucky to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $99 on Delta. Other airlines that offer cheap prices include American Airlines from $118 and United Airlines from $124 one-way.

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

    While some choose either Cincinnati Cinci./N. Kentucky - Washington, D.C. Dulles Intl or Louisville Intl - Washington, D.C. Dulles Intl, Nashville Intl - Washington, D.C. Dulles Intl is the most popular route from Kentucky to Washington, D.C. Dulles Intl Airport.

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

    The top 3 most reliable airlines when flying from Kentucky to Washington, D.C. Dulles Intl Airport are United Airlines (85%), Mesa Airlines (82%) and Lufthansa (80%).

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

    Looking at all options, your cheapest flight can be booked for $169. While the most popular route (Nashville Intl - Washington, D.C. Dulles Intl) can be booked for $163 on average, our data indicates $457 when flying from Kentucky to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Kentucky to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Kentucky to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kentucky to Dulles Intl?

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

  • Can I find deals for business class flights from Kentucky to Dulles Intl?

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

    Currently, March is the cheapest month in which you can book a flight from Kentucky to Washington, D.C. Dulles Intl Airport (average of $185). Flying from Kentucky to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $259). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Herndon
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Kentucky to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Baltimore flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
Los Angeles to Baltimore flights
O'Hare Intl to Baltimore flights
O'Hare Intl to Dulles Intl flights
Boston to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Boston to Reagan-National flights
O'Hare Intl to Reagan-National flights
Seattle to Reagan-National flights
San Francisco to Reagan-National flights
Hobby to Reagan-National flights
Los Angeles to Dulles Intl flights
Atlanta to Reagan-National flights
Dallas/Fort Worth to Reagan-National flights
San Francisco to Dulles Intl flights
Orlando to Dulles Intl flights
Atlanta to Baltimore flights
Seattle to Dulles Intl flights
Hobby to Dulles Intl flights
Denver to Baltimore flights
Atlanta to Dulles Intl flights
Hobby to Baltimore flights
San Francisco to Baltimore flights
Tampa to Dulles Intl flights
Orlando to Baltimore flights
Tampa to Reagan-National flights
Orlando to Reagan-National flights
Denver to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Denver to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
Detroit to Dulles Intl flights
Detroit to Baltimore flights
Austin to Dulles Intl flights
Fort Lauderdale to Baltimore flights
Seattle to Baltimore flights
Midway to Dulles Intl flights
Midway to Baltimore flights
Sky Harbor Intl to Dulles Intl flights
Tampa to Baltimore flights
George Bush Intcntl to Baltimore flights
LaGuardia to Reagan-National flights
Detroit to Reagan-National flights
Miami to Dulles Intl flights
Austin to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
Ontario to Dulles Intl flights
Minneapolis to Dulles Intl flights

Top 2 airlines flying from Kentucky to Dulles Intl

Discover the top 2 airlines that operate flights from Kentucky to Dulles Intl. 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$159Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$286FlexibilityNo cancel feeOn-time69%

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