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$76+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SDF
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Louisville Intl are usually found in February or January, booked 68 days in advance, depart on a Monday or Thursday and return on a Thursday

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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(Cheapflightsfares)

One-way from

$76
(Cheapflightsfares)

Popular in

March

Cheapest in

February

Average price

$519

Good round-trip deal

$387 or less

Good one-way deal

$249 or less
Provider with most accurate pricing for Philadelphia-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Louisville Intl flights.
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From Philadelphia to Louisville Intl
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One-way flight from Philadelphia to Louisville Intl
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Philadelphia to Louisville Intl.
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Price to beat on a one-way flight from Philadelphia to Louisville Intl.
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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 March 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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.
Tue 5/136:00 amPHL - SDF
1 stop5h 55mSpirit Airlines
Thu 5/1511:23 amSDF - PHL
1 stop11h 13mSpirit Airlines
Deal found 3/24$183
This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:00 pmPHL - SDF
1 stop17h 47mMultiple Airlines
Mon 4/216:19 pmSDF - PHL
2 stops29h 50mMultiple Airlines
Deal found 3/23$231
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 4/167:15 pmPHL - SDF
Nonstop2h 24mAmerican Airlines
Sat 4/197:30 amSDF - PHL
Nonstop1h 59mAmerican Airlines
Deal found 3/24$302
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:00 amPHL - SDF
1 stop4h 08mDelta
Mon 5/128:00 pmSDF - PHL
1 stop4h 57mDelta
Deal found 3/24$327
This Southwest deal was found by Cheapflights users on 3/24. 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.
Thu 5/85:50 amPHL - SDF
1 stop5h 30mSouthwest
Sun 5/116:35 amSDF - PHL
1 stop4h 30mSouthwest
Deal found 3/24$362
This United deal was found by Cheapflights users on 3/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:15 amPHL - SDF
2 stops16h 15mUnited Airlines
Tue 5/136:07 pmSDF - PHL
1 stop17h 46mUnited Airlines
Deal found 3/24$429

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 March 25, 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

Tue 5/13

6:00 am-11:55 am

1 stop5h 55m

Louisville Intl

Thu 5/15

11:23 am-10:36 pm

1 stop11h 13m

$183

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 4/18

6:00 pm-11:47 am

1 stop17h 47m

Louisville Intl

Mon 4/21

6:19 pm-12:09 am

2 stops29h 50m

$231

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Wed 4/16

7:15 pm-9:39 pm

Nonstop2h 24m

Louisville Intl

Sat 4/19

7:30 am-9:29 am

Nonstop1h 59m

$302

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Thu 5/8

5:50 am-11:20 am

1 stop5h 30m

Louisville Intl

Sun 5/11

6:35 am-11:05 am

1 stop4h 30m

$362

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 4/25

6:00 am-9:52 am

1 stop3h 52m

Louisville Intl

Sat 4/26

7:00 am-12:24 pm

1 stop5h 24m

$367

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Thu 5/8

6:15 am-10:30 pm

2 stops16h 15m

Louisville Intl

Tue 5/13

6:07 pm-11:53 am

1 stop17h 46m

$429

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Wed 4/23

10:08 am-10:17 pm

1 stop12h 09m

$76

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Thu 5/15

6:52 pm-6:42 pm

1 stop23h 50m

$147

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Sun 5/25

7:35 pm-9:56 pm

Nonstop2h 21m

$149

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Sat 4/26

12:00 pm-4:25 pm

1 stop4h 25m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 12 results
1
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
FareScanPrice Accuracy-Trust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars

*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 March 21, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Louisville, you should look to book at least 68 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 $299). Flying from Philadelphia 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 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 March 25, 2025.

It’s typically best to fly out from Philadelphia to Louisville in the evening. Doing so could potentially save you 10% on the flight price compared to flying at noon, 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 March 23, 2025.

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

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 March 25, 2025.
Read through reviews of airlines operating flights from Philadelphia to Louisville, such as Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,890 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
7,876 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 05m for a nonstop flight. There are 3 flights from Philadelphia to Louisville per day from 5 airlines.

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

    According to our current data, Spirit Airlines ($183), American Airlines ($302), and Southwest ($362) offers the cheapest pricing from Philadelphia to Louisville. You may be able to fly from Philadelphia to Louisville for 61% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $76. Users have also found prices from $154 and $210 on American Airlines and Delta, respectively.

  • 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: Aer Lingus (92%), American Airlines (83%), Piedmont Airlines (83%).

  • What are the cheapest flights from Philadelphia to Louisville?

    The cheapest flight price from Philadelphia to Louisville is $183. On average you can expect to pay $400. The most popular route, (Philadelphia - Louisville Intl), can usually be booked for $182.

  • 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 $299). Flying from Philadelphia 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Jeffersonville
Corydon
Elizabethtown
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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$128Average$239FlexibilityNo cancel feeOn-time65%
DeltaCheapest$177Average$330FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$294Average$500FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$310Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$326Average$465FlexibilityNo cancel feeOn-time69%
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