HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$87+ Cheap flights from Pennsylvania 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SDF
Feb 22 — Mar 11
Sun 2/22
Sun 3/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania 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 Pennsylvania to Louisville

Cheapest flights from Pennsylvania to Louisville
Explore the most affordable flight options available from Pennsylvania to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 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.
Wed 2/255:00 am
EWR
-
SDF
1 stop7h 21m
Multiple Airlines
Thu 2/262:26 pm
SDF
-
EWR
1 stop5h 33m
Multiple Airlines
Deal found 1/21$180
This CheapOair deal was found by Cheapflights users on 1/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:00 am
EWR
-
SDF
1 stop7h 21m
Spirit Airlines
Fri 2/271:19 pm
SDF
-
EWR
1 stop10h 00m
Spirit Airlines
Deal found 1/22$187
This American Airlines deal was found by Cheapflights users on 1/22. 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.
Sat 3/76:49 pm
DCA
-
SDF
Nonstop2h 02m
American Airlines
Fri 3/136:00 am
SDF
-
DCA
Nonstop1h 42m
American Airlines
Deal found 1/22$189
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:43 pm
IAD
-
SDF
Nonstop1h 59m
United Airlines
Sat 2/289:50 am
SDF
-
IAD
Nonstop1h 43m
United Airlines
Deal found 1/21$189
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.
Wed 2/187:59 pm
PHL
-
SDF
1 stop18h 39m
Multiple Airlines
Wed 2/251:19 pm
SDF
-
PHL
1 stop8h 49m
Multiple Airlines
Deal found 1/21$193
This American Airlines deal was found by Cheapflights users on 1/22. 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 2/198:40 am
DCA
-
SDF
Nonstop2h 02m
American Airlines
Mon 2/236:00 am
SDF
-
DCA
Nonstop1h 42m
American Airlines
Deal found 1/22$193
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 2/196:59 pm
EWR
-
SDF
1 stop13h 41m
Multiple Airlines
Wed 2/251:19 pm
SDF
-
EWR
1 stop8h 11m
Multiple Airlines
Deal found 1/22$193
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:00 am
EWR
-
SDF
1 stop7h 21m
Spirit Airlines
Wed 3/111:19 pm
SDF
-
EWR
1 stop10h 00m
Spirit Airlines
Deal found 1/21$196
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.
Tue 2/102:05 pm
EWR
-
SDF
1 stop22h 55m
Spirit Airlines
Tue 2/173:33 pm
SDF
-
EWR
1 stop19h 24m
Spirit Airlines
Deal found 1/21$199
This United Airlines deal was found by Cheapflights users on 1/22. 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 2/265:43 pm
IAD
-
SDF
Nonstop1h 59m
United Airlines
Wed 3/42:35 pm
SDF
-
IAD
Nonstop1h 38m
United Airlines
Deal found 1/22$201
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 2/411:44 am
EWR
-
SDF
1 stop28h 05m
Multiple Airlines
Sun 2/82:26 pm
SDF
-
EWR
1 stop6h 34m
Multiple Airlines
Deal found 1/22$203
This American Airlines deal was found by Cheapflights users on 1/23. 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 8/285:10 pm
DCA
-
SDF
Nonstop1h 48m
American Airlines
Tue 9/16:08 am
SDF
-
DCA
Nonstop1h 41m
American Airlines
Deal found 1/23$204

Find flight deals from Pennsylvania to Louisville

Keep the following information in mind while searching for Pennsylvania to Louisville flight deals. Data was last updated January 23, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$180
(Kiwi.com)

One-way from

$87
(CheapOair)

Popular in

October

Cheapest in

February

Average price

$563

Good round-trip deal

$489 or less

Good one-way deal

$522 or less
Provider with most accurate pricing for Philadelphia-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Louisville Intl flights.
Search Deals
From Pennsylvania to Louisville Intl
Search Deals
One-way flight from Pennsylvania to Louisville Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 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 Pennsylvania to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Pennsylvania to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 January 23, 2026.
Use the filters below to find and compare flights from Pennsylvania to Louisville that are best for you.

Fly from

Pennsylvania

Fly to

Louisville

Route

Depart

Return

Price

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 2/21

8:39 am-10:42 am

Nonstop2h 03m

Louisville Intl

Mon 2/23

6:00 am-7:42 am

Nonstop1h 42m

$189

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Tue 4/14

12:50 pm-2:47 pm

Nonstop1h 57m

Louisville Intl

Sat 4/18

2:30 pm-4:10 pm

Nonstop1h 40m

$201

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sun 5/24

8:00 am-12:49 pm

1 stop4h 49m

Louisville Intl

Sat 5/30

6:26 pm-10:51 pm

1 stop4h 25m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Mon 3/9

9:00 am-3:00 pm

1 stop6h 00m

Louisville Intl

Thu 3/12

1:00 pm-8:55 pm

1 stop7h 55m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 3/20

6:00 am-10:10 am

1 stop4h 10m

Louisville Intl

Tue 3/24

12:05 pm-6:46 pm

1 stop6h 41m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Wed 4/8

9:55 am-3:05 pm

1 stop5h 10m

Louisville Intl

Sat 4/11

8:40 am-1:50 pm

1 stop5h 10m

$209

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Sat 4/4

4:40 pm-7:04 pm

Nonstop2h 24m

Louisville Intl

Thu 4/9

6:00 am-8:13 am

Nonstop2h 13m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 5/30

6:00 am-9:51 am

1 stop3h 51m

Louisville Intl

Mon 6/1

5:45 pm-11:23 pm

1 stop5h 38m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 4/14

6:55 am-12:25 pm

1 stop5h 30m

Louisville Intl

Sat 4/18

4:50 pm-9:30 pm

1 stop4h 40m

$209

NewarkLouisville

EWR - SDF

EWRSDF

Newark

Fri 3/13

9:26 pm-11:59 pm

Nonstop2h 33m

Louisville Intl

Wed 3/18

6:00 am-8:11 am

Nonstop2h 11m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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

Best time to book a flight from Pennsylvania to Louisville

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

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

Currently, April is the cheapest month in which you can book a flight from Pennsylvania to Louisville (average of $104). Flying from Pennsylvania to Louisville in March is currently the most expensive (average of $225). 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 PA to SDF?

Find hourly flight availability from Pennsylvania 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 January 23, 2026.

A simple way to save on the total cost of your ticket is to fly from Pennsylvania to Louisville at noon. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Pennsylvania to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Louisville. Price data was last updated on January 17, 2026.

Travelers seeking maximum savings on their Pennsylvania to Louisville flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Pennsylvania to Louisville

Explore weekly flight availability from Pennsylvania to Louisville. 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 23, 2026.

The most flights from USPA to SDF are scheduled on a Monday (4 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania 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 Pennsylvania?

    For a flight from Pennsylvania to Louisville, you will be flying into Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city.

  • How popular is this Pennsylvania to Louisville flight route?

    Within the past month, 1 users have taken a look at flights from Pennsylvania to Louisville Intl.

  • How long is the flight from Pennsylvania to Louisville?

    There are many flights that can get you from Pennsylvania to Louisville in 1h 57m. Fly via American Airlines, United Airlines, or Delta to get the fastest option. There are 450 mi between Pennsylvania and Louisville. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $79 on American Airlines. Other airlines that offer cheap prices include Delta from $98 and United Airlines from $123 one-way.

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

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

  • What are the most reliable airlines from Pennsylvania to Louisville?

    The top 3 most reliable airlines when flying from Pennsylvania to Louisville are Aer Lingus (87%), Alaska Airlines (83%) and Piedmont Airlines (83%).

  • What are the cheapest flights from Pennsylvania to Louisville?

    Looking for the cheapest flight from Pennsylvania to Louisville? While on average our users pay $541, our data indicates the cheapest price to be $375. The most popular route (New York LaGuardia - Louisville Intl), is priced around $174.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Pennsylvania to Louisville (average of $104). Flying from Pennsylvania to Louisville in March is currently the most expensive (average of $225). 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 Pennsylvania to Louisville

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

Top 5 airlines flying from Pennsylvania to Louisville

Discover the top 5 airlines that operate flights from Pennsylvania 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 January 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$124Average$441FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$144Average$224FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$189Average$390FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$454FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$352FlexibilityNo cancel feeOn-timeN/A

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.