$94+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SDF
Feb 20 — Feb 271
1 adult, Economy
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Find cheap flights from Philadelphia 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.Cheapflights Tip: The best prices from Philadelphia to Louisville Intl are usually found in February or May, booked 73 days in advance, depart on a Monday or Wednesday and return on a Saturday
Cheap flight deals from Philadelphia to Louisville
Cheapest flights from Philadelphia to LouisvilleExplore 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 January 21, 2026.
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 January 21, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:06 am
PHL
- SDF
1 stop6h 32m
Spirit Airlines
Wed 2/251:19 pm
SDF
- PHL
1 stop5h 32m
Spirit Airlines
Deal found 1/20![Spirit Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Wed 2/183:45 pm
PHL
- SDF
1 stop21h 41m
Multiple Airlines
Wed 2/251:19 pm
SDF
- PHL
1 stop8h 49m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Wed 2/411:47 am
PHL
- SDF
1 stop25h 39m
Multiple Airlines
Sun 2/82:26 pm
SDF
- PHL
1 stop8h 16m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:21 am
PHL
- SDF
1 stop5h 58m
Spirit Airlines
Thu 3/193:33 pm
SDF
- PHL
1 stop8h 43m
Spirit Airlines
Deal found 1/20![Spirit Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/104:14 pm
PHL
- SDF
1 stop20h 46m
Multiple Airlines
Mon 2/169:30 am
SDF
- PHL
1 stop23h 14m
Multiple Airlines
Deal found 1/18![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Sun 2/225:51 pm
PHL
- SDF
1 stop14h 49m
Multiple Airlines
Wed 2/251:19 pm
SDF
- PHL
1 stop8h 49m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$219
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:00 am
PHL
- SDF
1 stop6h 08m
Spirit Airlines
Thu 3/193:33 pm
SDF
- PHL
1 stop8h 43m
Spirit Airlines
Deal found 1/20![Spirit Airlines logo]()
$224
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.
Mon 2/232:25 pm
PHL
- SDF
1 stop24h 13m
Multiple Airlines
Thu 2/262:26 pm
SDF
- PHL
1 stop9h 18m
Multiple Airlines
Deal found 1/21![Multiple Airlines logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Tue 2/246:00 am
PHL
- SDF
1 stop8h 38m
Multiple Airlines
Wed 2/251:19 pm
SDF
- PHL
2 stops19h 31m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Mon 3/165:28 pm
PHL
- SDF
1 stop18h 51m
Multiple Airlines
Wed 3/1812:03 pm
SDF
- PHL
1 stop7h 13m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$235
Find 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 January 21, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $189 (Cheapflightsfares) |
One-way from | $94 (Booking.com) |
Popular in | October |
Cheapest in | February |
Average price | $563 |
Good round-trip deal | $489 or less |
Good one-way deal | $522 or less |
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 January 21, 2026.
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
Mon 3/16
6:08 pm-12:19 pm
1 stop18h 11m
Louisville Intl
Thu 3/19
3:33 pm-10:59 pm
1 stop7h 26m
$235
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Mon 3/16
5:00 am-11:08 am
1 stop6h 08m
Louisville Intl
Wed 3/18
12:03 pm-10:52 pm
1 stop10h 49m
$239
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Tue 2/3
6:00 am-2:41 pm
1 stop8h 41m
Louisville Intl
Fri 2/6
6:54 pm-8:47 am
1 stop13h 53m
$250
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Thu 2/19
6:00 am-2:38 pm
1 stop8h 38m
Louisville Intl
Fri 2/20
1:19 pm-6:51 pm
1 stop5h 32m
$259
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Fri 3/6
5:30 am-12:21 pm
1 stop6h 51m
Louisville Intl
Mon 3/9
1:19 pm-6:51 pm
1 stop5h 32m
$274
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Thu 2/12
5:30 am-8:40 am
2 stops27h 10m
Louisville Intl
Tue 2/17
3:33 pm-9:53 am
1 stop18h 20m
$291
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Sat 5/16
9:50 am-4:15 pm
1 stop6h 25m
Louisville Intl
Tue 5/19
8:55 am-4:50 pm
2 stops7h 55m
$328
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Wed 5/27
2:00 pm-8:35 pm
1 stop6h 35m
Louisville Intl
Sat 5/30
8:40 am-3:05 pm
1 stop6h 25m
$349
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Tue 2/24
5:40 am-4:50 pm
2 stops11h 10m
Louisville Intl
Wed 2/25
5:35 am-5:25 pm
2 stops11h 50m
$353
PhiladelphiaLouisville
PHL - SDF
PHLSDF
Philadelphia
Thu 4/16
11:10 am-9:00 pm
1 stop9h 50m
Louisville Intl
Sat 4/18
3:15 pm-9:35 pm
1 stop6h 20m
$354
Showing 1-10 of 21 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Louisville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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
Prices
Airlines
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 January 16, 2026.
To ensure you get the cheapest price possible for a flight from Philadelphia to Louisville, you should look to book at least 72 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, April is the cheapest month in which you can book a flight from Philadelphia to Louisville (average of $60). 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 January 21, 2026.
It’s typically best to fly out from Philadelphia to Louisville at noon. Doing so could potentially save you 4% 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 January 17, 2026.
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 January 21, 2026.
Read through reviews of airlines operating flights from Philadelphia to Louisville, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown
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Alternative routes for Philadelphia to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Philadelphia to Louisville
Discover the top 4 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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$224 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$189 | Average$396 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$319 | Average$515 | FlexibilityNo cancel fee | On-time71% |