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Dulles Intl

$40+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAD
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Find 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 November 17, 2025.

This Trip.com deal was found by Cheapflights users on 11/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:49 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sun 11/238:23 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 11/14$112
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 11/235:49 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Tue 11/252:58 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 11/15$121
This Mytrip deal was found by Cheapflights users on 11/16. 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.
Thu 12/115:23 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sun 12/147:57 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 11/16$126
This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Tue 11/2512:24 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sat 11/293:04 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 11/15$134
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 12/3112:01 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sat 1/38:48 pmIAD - TYS
1 stop17h 39mAllegiant Air
Deal found 11/15$146
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 11/235:49 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sat 11/293:04 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 11/15$154
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/45:23 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sun 12/75:21 pmIAD - TYS
1 stop28h 52mAllegiant Air
Deal found 11/16$155
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 12/3112:01 pmTYS - IAD
Nonstop1h 44mMultiple Airlines
Sun 1/49:58 pmIAD - TYS
1 stop12h 17mMultiple Airlines
Deal found 11/14$160
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 12/45:23 pmTYS - IAD
Nonstop1h 44mMultiple Airlines
Sun 12/79:20 pmIAD - TYS
1 stop24h 29mMultiple Airlines
Deal found 11/15$162
This United Airlines deal was found by Cheapflights users on 11/16. 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 12/226:00 amCVG - IAD
Nonstop1h 35mUnited Airlines
Fri 1/912:35 pmIAD - CVG
Nonstop1h 44mUnited Airlines
Deal found 11/16$189
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/512:02 pmCVG - IAD
2 stops8h 22mFrontier
Mon 12/89:26 amIAD - CVG
1 stop13h 37mFrontier
Deal found 11/16$190
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/512:02 pmCVG - IAD
1 stop11h 03mFrontier
Sun 12/75:26 pmIAD - CVG
1 stop17h 17mFrontier
Deal found 11/16$198

Cheap 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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$126
(Mytrip)

One-way from

$40
(Mytrip)

Popular in

August

Cheapest in

June

Average price

$254

Good round-trip deal

$365 or less

Good one-way deal

$216 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 ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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.
Search Deals

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 November 17, 2025.
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

Thu 12/4

5:23 pm-7:07 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 12/7

9:20 pm-9:49 pm

1 stop24h 29m

$163

EvansvilleWashington, D.C.

EVV - IAD

EVVIAD

Evansville Dress Regional

Fri 1/9

7:46 pm-9:08 am

1 stop12h 22m

Washington, D.C. Dulles Intl

Mon 1/12

8:35 am-7:06 pm

1 stop11h 31m

$184

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Mon 12/22

7:23 pm-9:15 pm

Nonstop1h 52m

Washington, D.C. Dulles Intl

Thu 1/1

9:00 am-10:56 am

Nonstop1h 56m

$189

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Sat 12/13

7:45 pm-9:20 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Sun 12/14

8:45 am-10:23 am

Nonstop1h 38m

$189

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 1/16

7:17 pm-11:12 pm

1 stop3h 55m

Washington, D.C. Dulles Intl

Sun 1/18

7:04 am-12:19 pm

1 stop5h 15m

$199

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 1/7

7:26 am-11:49 am

1 stop4h 23m

Washington, D.C. Dulles Intl

Tue 1/13

6:00 am-9:59 am

1 stop3h 59m

$199

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Wed 1/7

10:05 am-11:41 am

Nonstop1h 36m

Washington, D.C. Dulles Intl

Tue 1/13

12:35 pm-2:19 pm

Nonstop1h 44m

$199

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 12/23

9:55 am-11:36 am

Nonstop1h 41m

Washington, D.C. Dulles Intl

Sun 12/28

12:51 pm-2:44 pm

Nonstop1h 53m

$202

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Sat 1/3

5:45 am-7:30 am

Nonstop1h 45m

Washington, D.C. Dulles Intl

Wed 1/7

12:55 pm-2:49 pm

Nonstop1h 54m

$204

CincinnatiWashington, D.C.

CVG - IAD

CVGIAD

Cincinnati Cinci./N. Kentucky

Thu 11/27

6:00 am-7:35 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Mon 12/1

10:16 pm-11:59 pm

Nonstop1h 43m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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 $268). 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 November 17, 2025.

When flying from Kentucky to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 54% versus a flight at noon.

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 November 17, 2025.

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 52m. Fly via United Airlines, American 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 $73 on Frontier. Other airlines that offer cheap prices include United Airlines from $95 and Allegiant Air from $98 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 Republic Airways (100%), Copa Airlines (97%) and Air Canada (93%).

  • 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 $119. While the most popular route (Nashville Intl - Washington, D.C. Dulles Intl) can be booked for $164 on average, our data indicates $513 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 $268). 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

Browse thousands of different options on Cheapflights for your next trip

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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.
Dallas/Fort Worth to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
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San Francisco to Reagan-National flights
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Atlanta to Baltimore flights
Denver to Baltimore flights
Miami to Reagan-National flights
Hobby to Reagan-National flights
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George Bush Intcntl to Baltimore flights
Orlando to Baltimore flights
Orlando to Reagan-National flights
Minneapolis to Baltimore flights
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Seattle to Baltimore flights
Detroit to Baltimore flights
Detroit to Dulles Intl flights
Fort Lauderdale to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Denver to Reagan-National flights
Fort Lauderdale to Reagan-National flights
Minneapolis to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
Tampa to Reagan-National flights
Miami to Dulles Intl flights
San Diego to Dulles Intl flights
Tampa to Baltimore flights
Sky Harbor Intl 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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$159Average$335FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$289FlexibilityNo cancel feeOn-time69%

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