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$100+ Cheap flights from Philadelphia to Louisville (PHL - 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SDF
11月 20 — 11月 271
週四 11/20
週四 11/27
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Louisville Intl are usually found in February or May, booked 88 days in advance, depart on a Monday or Wednesday and return on a Saturday

Find flight deals from Philadelphia to Louisville

Cheapest flights from Philadelphia to Louisville
Explore the most affordable flight options available from Philadelphia to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10月 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 12/25:25 amPHL - SDF
1 stop12h 28mSpirit Airlines
週五 12/511:55 amSDF - PHL
1 stop11h 21mSpirit Airlines
Deal found 10/21$188
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 12/38:54 pmPHL - SDF
1 stop14h 06mSpirit Airlines
週五 12/511:55 amSDF - PHL
1 stop11h 21mSpirit Airlines
Deal found 10/21$209
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
週一 11/248:54 pmPHL - SDF
1 stop20h 59mMultiple Airlines
週二 12/26:48 pmSDF - PHL
1 stop20h 10mMultiple Airlines
Deal found 10/20$212
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
週五 11/145:05 amPHL - SDF
1 stop13h 11mMultiple Airlines
週一 11/177:46 pmSDF - PHL
1 stop18h 29mMultiple Airlines
Deal found 10/19$230
This Mytrip deal was found by Cheapflights users on 10/18. 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.
週四 10/301:58 pmPHL - SDF
2 stops19h 03mMultiple Airlines
週五 10/3111:47 amSDF - PHL
1 stop12h 12mMultiple Airlines
Deal found 10/18$243
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 11/246:41 pmPHL - SDF
2 stops23h 12mSpirit Airlines
週二 12/26:48 pmSDF - PHL
1 stop14h 32mSpirit Airlines
Deal found 10/20$244
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
週一 11/35:05 amPHL - SDF
1 stop13h 11mMultiple Airlines
週四 11/67:11 pmSDF - PHL
1 stop14h 19mMultiple Airlines
Deal found 10/20$248
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
週五 11/145:05 amPHL - SDF
1 stop13h 11mMultiple Airlines
週日 11/167:11 pmSDF - PHL
1 stop14h 19mMultiple Airlines
Deal found 10/20$251
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
週三 10/292:35 pmPHL - SDF
1 stop23h 40mMultiple Airlines
週五 10/319:51 amSDF - PHL
1 stop8h 58mMultiple Airlines
Deal found 10/21$257

Cheap flight deals from Philadelphia to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10月 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$212
(Kiwi.com)

One-way from

$100
(Kiwi.com)

Popular in

October

Cheapest in

February

Average price

$573

Good round-trip deal

$529 or less

Good one-way deal

$360 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 Philadelphia to Louisville Intl
Search Deals
One-way flight from Philadelphia to Louisville Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Philadelphia to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 10月 21, 2025.
Use the filters below to find and compare flights from Philadelphia to Louisville that are best for you.

Fly from

Philadelphia

Fly to

Louisville

Route

Depart

Return

Price

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週三 12/3

8:54 pm-11:00 am

1 stop14h 06m

Louisville Intl

週五 12/5

11:55 am-11:16 pm

1 stop11h 21m

$209

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週一 11/24

8:54 pm-5:53 pm

1 stop20h 59m

Louisville Intl

週二 12/2

6:48 pm-2:58 pm

1 stop20h 10m

$212

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週五 11/14

5:05 am-6:16 pm

1 stop13h 11m

Louisville Intl

週一 11/17

7:46 pm-2:15 pm

1 stop18h 29m

$230

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週二 12/2

6:00 am-5:53 pm

2 stops11h 53m

Louisville Intl

週五 12/5

11:55 am-11:16 pm

1 stop11h 21m

$235

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週一 1/12

12:23 pm-11:21 pm

1 stop10h 58m

Louisville Intl

週五 1/16

1:32 pm-11:54 pm

1 stop10h 22m

$261

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週一 12/1

8:54 pm-5:53 pm

1 stop20h 59m

Louisville Intl

週日 12/7

11:55 am-2:58 pm

1 stop27h 03m

$274

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週五 11/14

5:05 am-6:16 pm

1 stop13h 11m

Louisville Intl

週日 11/16

7:11 pm-12:57 pm

2 stops17h 46m

$312

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週一 11/3

6:00 am-6:16 pm

1 stop12h 16m

Louisville Intl

週五 11/7

9:54 am-9:15 pm

2 stops11h 21m

$341

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週四 2/19

9:26 am-6:50 pm

1 stop9h 24m

Louisville Intl

週六 2/21

6:30 pm-8:20 pm

Nonstop1h 50m

$344

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

週四 11/6

10:25 am-9:04 am

2 stops22h 39m

Louisville Intl

週日 11/9

7:11 pm-9:15 pm

2 stops26h 04m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 21 results
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Compare providers for flights from Philadelphia to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Louisville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Louisville

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

How far ahead should I book a flight from Philadelphia to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Louisville. Price data was last updated on October 17, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Louisville, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Louisville (average of $46). Flying from Philadelphia to Louisville in September is currently the most expensive (average of $152). 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 PHL to SDF?

Find hourly flight availability from Philadelphia 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 10月 21, 2025.

It’s typically best to fly out from Philadelphia to Louisville at noon. Doing so could potentially save you 10% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Louisville. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Philadelphia 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.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated 10月 21, 2025.
Read through reviews of airlines operating flights from Philadelphia to Louisville, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,978 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,991 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,023 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,095 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • What airports do I use to fly from Philadelphia to Louisville?

    If you book a flight from Philadelphia to Louisville, you will be flying from Philadelphia to Louisville Intl. Flights to Louisville Intl (SDF) from Philadelphia (PHL) take 2h 14m for a nonstop flight. There are 5 flights from Philadelphia to Louisville per day from 5 airlines.

  • How popular is this Philadelphia to Louisville flight route?

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

  • How long is the flight from Philadelphia to Louisville?

    Airlines like Spirit Airlines and American Airlines fly from Philadelphia to Louisville in about 10h 58m. The time it takes to get you to your destination can typically vary by up to 3h 08m. Philadelphia and Louisville are separated by a distance of 575 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Philadelphia to Louisville round-trip?

    According to our current data, Spirit Airlines ($166), Delta ($226), and United Airlines ($256) offers the cheapest pricing from Philadelphia to Louisville. You may be able to fly from Philadelphia to Louisville for 65% less than the average price by searching for these airlines.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Philadelphia to Louisville on time: Piedmont Airlines (95%), Alaska Airlines (89%), PSA Airlines (88%).

  • What are the cheapest flights from Philadelphia to Louisville?

    The cheapest flight price from Philadelphia to Louisville is $340. On average you can expect to pay $540. The most popular route, (Philadelphia - Louisville Intl), can usually be booked for $212.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Louisville (average of $46). Flying from Philadelphia to Louisville in September is currently the most expensive (average of $152). 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

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Alternative routes for Philadelphia to Louisville

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Top 5 airlines flying from Philadelphia to Louisville

Discover the top 5 airlines that operate flights from Philadelphia 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 10月 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$166Average$230FlexibilityNo cancel feeOn-time65%
DeltaCheapest$226Average$404FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$420FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$258Average$396FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$311Average$509FlexibilityNo cancel feeOn-time71%

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