HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$79+ Cheap flights from Connecticut to Louisville (SDF)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — SDF
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Connecticut to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Connecticut to Louisville

Keep the following information in mind while searching for Connecticut to Louisville flight deals. Data was last updated August 14, 2025.

Round-trip from

$177
(Cheapflightsfares)

One-way from

$79
(FlightHub)

Popular in

January

Cheapest in

August

Average price

$319
From Connecticut to Louisville Intl
Search Deals
One-way flight from Connecticut to Louisville Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Connecticut to Louisville

Cheapest flights from Connecticut to Louisville
Explore the most affordable flight options available from Connecticut to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:01 pmEWR - SDF
1 stop12h 18mSpirit Airlines
Wed 9/1710:14 amSDF - EWR
1 stop7h 45mSpirit Airlines
Deal found 8/12$177
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:05 amEWR - SDF
1 stop11h 59mSpirit Airlines
Sat 9/2010:14 amSDF - EWR
1 stop12h 52mSpirit Airlines
Deal found 8/14$178
This Mytrip deal was found by Cheapflights users on 8/12. 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.
Sat 9/65:30 pmEWR - SDF
1 stop15h 49mSpirit Airlines
Tue 9/910:14 amSDF - EWR
1 stop8h 38mSpirit Airlines
Deal found 8/12$185
This Mytrip deal was found by Cheapflights users on 8/12. 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.
Tue 9/98:00 pmEWR - SDF
1 stop13h 19mSpirit Airlines
Tue 9/1610:14 amSDF - EWR
1 stop8h 38mSpirit Airlines
Deal found 8/12$188
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/89:01 pmEWR - SDF
1 stop12h 18mSpirit Airlines
Sat 9/2010:14 amSDF - EWR
1 stop12h 52mSpirit Airlines
Deal found 8/12$189
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:59 pmEWR - SDF
1 stop17h 59mMultiple Airlines
Tue 9/1610:14 amSDF - EWR
1 stop6h 26mMultiple Airlines
Deal found 8/11$190
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:01 pmEWR - SDF
1 stop12h 18mSpirit Airlines
Mon 9/810:14 amSDF - EWR
1 stop12h 52mSpirit Airlines
Deal found 8/11$193
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Thu 10/162:10 pmEWR - SDF
1 stop8h 37mSpirit Airlines
Mon 10/207:49 amSDF - EWR
1 stop5h 39mSpirit Airlines
Deal found 8/12$194
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/107:57 pmEWR - SDF
1 stop13h 22mSpirit Airlines
Wed 9/1710:14 amSDF - EWR
1 stop7h 45mSpirit Airlines
Deal found 8/12$195
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 10/216:33 pmBDL - SDF
1 stop4h 51mAmerican Airlines
Sat 10/257:26 amSDF - BDL
1 stop5h 34mAmerican Airlines
Deal found 8/12$202
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Wed 9/106:30 amLGA - SDF
1 stop26h 49mSpirit Airlines
Sat 9/1310:14 amSDF - LGA
1 stop8h 25mSpirit Airlines
Deal found 8/12$203
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:05 amLGA - SDF
1 stop6h 20mSouthwest
Sat 10/183:50 pmSDF - LGA
1 stop6h 15mSouthwest
Deal found 8/12$204

Cheapflights Fare Finder

 
Customize your flight search to find flights from Connecticut to Louisville 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 August 14, 2025.
Use the filters below to find and compare flights from Connecticut to Louisville that are best for you.

Fly from

Connecticut

Fly to

Louisville

Route

Depart

Return

Price

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Mon 9/15

9:01 pm-9:19 am

1 stop12h 18m

Louisville Intl

Wed 9/17

10:14 am-5:59 pm

1 stop7h 45m

$177

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Sat 9/13

10:05 am-10:04 pm

1 stop11h 59m

Louisville Intl

Sat 9/20

10:14 am-11:06 pm

1 stop12h 52m

$178

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Sat 9/6

5:30 pm-9:19 am

1 stop15h 49m

Louisville Intl

Tue 9/9

10:14 am-6:52 pm

1 stop8h 38m

$185

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Wed 9/10

4:20 pm-9:19 am

1 stop16h 59m

Louisville Intl

Tue 9/16

10:14 am-4:40 pm

1 stop6h 26m

$189

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Wed 9/17

7:57 pm-9:19 am

1 stop13h 22m

Louisville Intl

Sat 9/20

10:14 am-11:06 pm

1 stop12h 52m

$189

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Thu 9/11

2:59 pm-8:58 am

1 stop17h 59m

Louisville Intl

Tue 9/16

10:14 am-4:40 pm

1 stop6h 26m

$190

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Mon 9/8

9:01 pm-9:19 am

1 stop12h 18m

Louisville Intl

Fri 9/12

10:14 am-11:06 pm

1 stop12h 52m

$193

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Thu 10/30

11:05 am-10:47 pm

1 stop11h 42m

Louisville Intl

Mon 11/3

7:49 am-1:28 pm

1 stop5h 39m

$193

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Mon 9/29

9:01 pm-9:19 am

1 stop12h 18m

Louisville Intl

Wed 10/1

10:14 am-4:40 pm

1 stop6h 26m

$193

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Fri 9/5

9:01 pm-9:19 am

1 stop12h 18m

Louisville Intl

Mon 9/8

10:14 am-11:06 pm

1 stop12h 52m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Connecticut to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Connecticut 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 Connecticut to Louisville

What is the cheapest month to book a flight from Connecticut to Louisville?

Currently, January is the cheapest month in which you can book a flight from Connecticut to Louisville (average of $299). Flying from Connecticut to Louisville in April is currently the most expensive (average of $369). 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 CT to SDF?

Find hourly flight availability from Connecticut to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

When flying from Connecticut to Louisville, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Connecticut to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from Connecticut?

    Most people fly into Louisville Intl (SDF) if they book a flight to Louisville from Connecticut. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • What are the cheapest airlines to fly from Connecticut to Louisville one-way?

    $79 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $119 and $140, respectively.

  • What are the most popular routes from Connecticut to Louisville?

    The most popular route from Connecticut to Louisville is New York LaGuardia - Louisville Intl. You may also consider Newark - Louisville Intl or New York John F Kennedy Intl - Louisville Intl.

  • Can I find deals for flights from Connecticut to Louisville that include hotel bookings?

    Yes. In addition to deals on Connecticut to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Connecticut to Louisville?

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

  • Can I find deals for business class flights from Connecticut to Louisville?

    Yes. Cheapflights offers flight deals from Connecticut to Louisville 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 Connecticut to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Connecticut to Louisville (average of $299). Flying from Connecticut to Louisville in April is currently the most expensive (average of $369). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Connecticut to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Nashville flights
John F Kennedy Intl to Nashville flights
Newark to Nashville flights
Boston to Nashville flights
Los Angeles to Nashville flights
O'Hare Intl to Nashville flights
Dallas/Fort Worth to Nashville flights
Seattle to Nashville flights
John F Kennedy Intl to Cincinnati flights
San Francisco to Nashville flights
Ontario to Nashville flights
Reagan-National to Nashville flights
Baltimore to Nashville flights
Dulles Intl to Nashville flights
Santa Ana to Nashville flights
Philadelphia to Nashville flights
Newark to Cincinnati flights
Denver to Nashville flights
Hobby to Nashville flights
LaGuardia to Cincinnati flights
Raleigh to Nashville flights
Minneapolis to Nashville flights
Burbank to Nashville flights
LaGuardia to Louisville flights
Boston to Cincinnati flights
Fort Lauderdale to Nashville flights
Newark to Louisville flights
O'Hare Intl to Knoxville flights
Dallas/Fort Worth to Cincinnati flights
Orlando to Nashville flights
LaGuardia to Knoxville flights
George Bush Intcntl to Nashville flights
Dallas/Fort Worth to Louisville flights
Sky Harbor Intl to Nashville flights
Austin to Nashville flights
Charlotte to Nashville flights
Hobby to Cincinnati flights
Love Field to Nashville flights
John F Kennedy Intl to Knoxville flights
Hobby to Knoxville flights
Portland to Nashville flights
Providence to Nashville flights
Detroit to Nashville flights
John F Kennedy Intl to Louisville flights
Atlanta to Cincinnati flights
Midway to Nashville flights
Tampa to Nashville flights
San Antonio to Nashville flights
Pittsburgh to Nashville flights
Los Angeles to Cincinnati flights

Top 4 airlines flying from Connecticut to Louisville

Discover the top 4 airlines that operate flights from Connecticut to Louisville. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$271Average$390FlexibilityNo cancel feeOn-time71%
DeltaCheapest$271Average$429FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$296Average$506FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$306Average$392FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.