HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$94+ Cheap flights from Louisville to Philadelphia (SDF - PHL)

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.
SDF — PHL
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Philadelphia 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 Louisville Intl to Philadelphia are usually found in June or February, booked 16 days in advance, depart on a Saturday or Friday and return on a Monday

Cheap flight deals from Louisville to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Philadelphia (PHL). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$194
(Kiwi.com)

One-way from

$94
(Cheapflightsfares)

Popular in

August

Cheapest in

June

Average price

$522

Good round-trip deal

$421 or less

Good one-way deal

$275 or less
Provider with most accurate pricing for Louisville Intl-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Philadelphia flights.
Search Deals
From Louisville Intl to Philadelphia
Search Deals
One-way flight from Louisville Intl to Philadelphia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($65 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 Louisville Intl to Philadelphia.
Search Deals
Price to beat on a one-way flight from Louisville Intl to Philadelphia.
Search Deals

Find flight deals from Louisville to Philadelphia

Cheapest flights from Louisville to Philadelphia
Explore the most affordable flight options available from Louisville to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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 11/147:11 pmSDF - PHL
1 stop14h 19mSpirit Airlines
Mon 11/176:00 amPHL - SDF
1 stop12h 16mSpirit Airlines
Deal found 10/27$233
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/206:48 pmSDF - PHL
1 stop28h 54mMultiple Airlines
Mon 11/244:35 pmPHL - SDF
1 stop25h 18mMultiple Airlines
Deal found 10/27$246
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/256:48 pmSDF - PHL
1 stop28h 29mMultiple Airlines
Mon 12/18:54 pmPHL - SDF
1 stop20h 59mMultiple Airlines
Deal found 10/28$251
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 11/219:38 amSDF - PHL
1 stop14h 04mMultiple Airlines
Sun 11/239:00 amPHL - SDF
1 stop23h 33mMultiple Airlines
Deal found 10/27$254
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/206:48 pmSDF - PHL
1 stop14h 32mMultiple Airlines
Sat 11/224:43 pmPHL - SDF
1 stop26h 53mMultiple Airlines
Deal found 10/27$263
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/107:11 pmSDF - PHL
1 stop19h 04mSpirit Airlines
Wed 11/123:10 pmPHL - SDF
1 stop27h 06mSpirit Airlines
Deal found 10/27$265
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/62:55 pmSDF - PHL
1 stop6h 48mMultiple Airlines
Sun 11/96:00 amPHL - SDF
1 stop12h 16mMultiple Airlines
Deal found 10/26$272
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/269:11 pmSDF - PHL
1 stop26h 14mMultiple Airlines
Mon 12/16:41 pmPHL - SDF
2 stops23h 12mMultiple Airlines
Deal found 10/27$275
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/149:54 amSDF - PHL
3 stops34h 19mMultiple Airlines
Mon 11/176:00 amPHL - SDF
1 stop12h 16mMultiple Airlines
Deal found 10/27$288

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Philadelphia 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 October 28, 2025.
Use the filters below to find and compare flights from Louisville to Philadelphia that are best for you.

Fly from

Louisville

Fly to

Philadelphia

Route

Depart

Return

Price

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 11/26

9:11 pm-11:25 pm

1 stop26h 14m

Philadelphia

Mon 12/1

6:41 pm-5:53 pm

2 stops23h 12m

$275

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 11/20

2:55 pm-12:30 am

2 stops9h 35m

Philadelphia

Mon 11/24

4:35 pm-5:53 pm

1 stop25h 18m

$278

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 2/11

10:55 am-10:58 pm

2 stops12h 03m

Philadelphia

Sat 2/14

3:45 pm-1:26 pm

1 stop21h 41m

$307

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 11/7

9:54 am-11:26 pm

1 stop13h 32m

Philadelphia

Mon 11/10

6:00 am-6:16 pm

1 stop12h 16m

$311

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 11/7

7:11 pm-9:30 am

1 stop14h 19m

Philadelphia

Sun 11/9

6:00 am-6:16 pm

1 stop12h 16m

$342

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 11/21

9:38 am-11:46 pm

1 stop14h 08m

Philadelphia

Mon 11/24

3:00 pm-5:53 pm

3 stops26h 53m

$347

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 11/7

9:54 am-9:15 pm

2 stops11h 21m

Philadelphia

Sun 11/9

6:00 am-6:16 pm

1 stop12h 16m

$373

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sun 2/15

5:25 am-4:30 pm

2 stops11h 05m

Philadelphia

Tue 2/17

1:15 pm-9:25 pm

1 stop8h 10m

$381

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 1/5

12:25 pm-6:55 pm

1 stop6h 30m

Philadelphia

Fri 1/9

6:10 am-4:10 pm

2 stops10h 00m

$381

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 12/6

7:10 am-12:40 pm

1 stop5h 30m

Philadelphia

Sun 12/7

5:45 am-11:45 am

1 stop6h 00m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 19 results
1
2

Compare providers for flights from Louisville to Philadelphia

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 Louisville to Philadelphia in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Louisville-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Philadelphia 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 Louisville-Philadelphia 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 Louisville to Philadelphia

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

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Philadelphia. Price data was last updated on October 24, 2025.

The best time to book flights from Louisville to Philadelphia is 16 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Louisville to Philadelphia (average of $47). Flying from Louisville to Philadelphia in February is currently the most expensive (average of $116). 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 SDF to PHL?

Find hourly flight availability from Louisville to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 68% on flights from Louisville to Philadelphia by exploring options for tickets in the evening.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated October 28, 2025.
Read through reviews of airlines operating flights from Louisville to Philadelphia, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,240 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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
8,116 reviews
Southwest
8.0
Very good
4,240 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

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 Louisville to Philadelphia. 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 Louisville to Philadelphia?

    Philadelphia is the airport most travelers will use when flying to Philadelphia from Louisville Intl. Booking flights from Louisville Intl (SDF) to Philadelphia (PHL) should be relatively easy as there are 2 daily flights to Philadelphia from 4 different airlines. 1h 54m is how long a flight from Louisville to Philadelphia will take if you book a nonstop flight.

  • How popular is this Louisville to Philadelphia flight route?

    The Louisville Intl to Philadelphia flight path was viewed by 16 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Louisville to Philadelphia?

    Airlines like Spirit Airlines fly from Louisville to Philadelphia in about 14h 19m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 575 mi.

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

    Cheapflights users have booked flights from Louisville to Philadelphia round-trip from $165. Other airlines that can offer you cheap pricing are Southwest, from $215, and Delta, from $226. Spirit Airlines is 65% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Consider Piedmont Airlines (95%), Qatar Airways (95%) or Aer Lingus (91%) when booking your flight. These represent the most reliable airlines when flying from Louisville to Philadelphia.

  • What are the cheapest flights from Louisville to Philadelphia?

    Looking for the cheapest flight from Louisville to Philadelphia? While on average our users pay $458, our data indicates the cheapest price to be $158. The most popular route (Louisville Intl - Philadelphia), is priced around $233.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Louisville to Philadelphia (average of $47). Flying from Louisville to Philadelphia in February is currently the most expensive (average of $116). 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
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace

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 Louisville to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to LaGuardia flights
Cincinnati to John F Kennedy Intl flights
Nashville to John F Kennedy Intl flights
Nashville to LaGuardia flights
Nashville to Newark flights
Cincinnati to Newark flights
Louisville to LaGuardia flights
Louisville to Newark flights
Knoxville to LaGuardia flights
Louisville to John F Kennedy Intl flights
Nashville to Philadelphia flights
Cincinnati to Dulles Intl flights
Cincinnati to Philadelphia flights
Cincinnati to Reagan-National flights
Nashville to Dulles Intl flights
Knoxville to John F Kennedy Intl flights
Nashville to Reagan-National flights
Lexington to John F Kennedy Intl flights
Knoxville to Dulles Intl flights
Lexington to LaGuardia flights
Lexington to Newark flights
Knoxville to Newark flights
Louisville to Dulles Intl flights
Knoxville to Reagan-National flights
Louisville to Reagan-National flights
Blountville to Dulles Intl flights
Nashville to Pittsburgh flights
Knoxville to Philadelphia flights
Lexington to Dulles Intl flights
Blountville to John F Kennedy Intl flights
Lexington to Philadelphia flights
Lexington to Reagan-National flights
Knoxville to Pittsburgh flights
Blountville to LaGuardia flights
Blountville to Newark flights
Knoxville to Harrisburg flights
Nashville to Harrisburg flights
Louisville to Pittsburgh flights
Blountville to Reagan-National flights
Cincinnati to Pittsburgh flights
Nashville to Allentown flights
Evansville to LaGuardia flights
Evansville to John F Kennedy Intl flights
Lexington to Pittsburgh flights
Cincinnati to Harrisburg flights
Blountville to Philadelphia flights
Nashville to Scranton flights
Evansville to Newark flights
Cincinnati to Allentown flights

Top 4 airlines flying from Louisville to Philadelphia

Discover the top 4 airlines that operate flights from Louisville to Philadelphia. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$165Average$233FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$215Average$407FlexibilityNo cancel feeOn-time63%
DeltaCheapest$226Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$497FlexibilityNo cancel feeOn-time71%

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.