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$90+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — PHL
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Philadelphia are usually found in June or February, booked 76 days in advance, depart on a Friday or Thursday 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 julio 30, 2025.

Round-trip from

$180
(CheapOair)

One-way from

$90
(CheapOair)

Popular in

September

Cheapest in

June

Average price

$477

Good round-trip deal

$314 or less

Good one-way deal

$325 or less
From Louisville Intl to Philadelphia
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One-way flight from Louisville Intl to Philadelphia
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Highest demand for flights based on searches. 8% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Louisville Intl to Philadelphia.
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Price to beat on a one-way flight from Louisville Intl to Philadelphia.
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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 julio 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/23:10 pmSDF - PHL
1 stop6h 29mSpirit Airlines
sáb. 10/48:30 pmPHL - SDF
1 stop12h 49mSpirit Airlines
Deal found 7/28$180
This Mytrip deal was found by Cheapflights users on 7/29. 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.
vie. 9/129:47 amSDF - PHL
1 stop15h 10mMultiple Airlines
dom. 9/149:50 pmPHL - SDF
1 stop11h 29mMultiple Airlines
Deal found 7/29$199

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 julio 30, 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

jue. 10/2

3:10 pm-9:39 pm

1 stop6h 29m

Philadelphia

sáb. 10/4

8:30 pm-9:19 am

1 stop12h 49m

$180

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

vie. 9/12

9:47 am-12:57 am

1 stop15h 10m

Philadelphia

dom. 9/14

9:50 pm-9:19 am

1 stop11h 29m

$199

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mié. 8/27

1:15 pm-5:40 pm

1 stop4h 25m

Philadelphia

mié. 9/3

6:30 am-12:25 pm

1 stop5h 55m

$236

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

jue. 8/21

2:46 pm-8:49 pm

1 stop6h 03m

$90

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mar. 10/28

5:30 am-3:20 pm

2 stops9h 50m

$95

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

vie. 8/22

10:24 am-8:54 pm

1 stop10h 30m

$132

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mar. 9/30

7:00 am-4:27 pm

1 stop9h 27m

$202

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mié. 9/24

7:20 am-12:20 am

1 stop17h 00m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 2025.

The best time to book flights from Louisville to Philadelphia is 75 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, August is the cheapest month in which you can book a flight from Louisville to Philadelphia (average of $236). Flying from Louisville to Philadelphia in March is currently the most expensive (average of $295). 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 julio 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 69% on flights from Louisville to Philadelphia by exploring options for tickets in the evening.

Weekly flight availability from Louisville to Philadelphia

Explore weekly flight availability from Louisville to Philadelphia. 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 julio 30, 2025.

The most flights from SDF to PHL are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 julio 30, 2025.
Read through reviews of airlines operating flights from Louisville to Philadelphia, such as Southwest, United Airlines, 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
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 6 daily flights to Philadelphia from 4 different airlines. 2h 03m 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 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from Louisville to Philadelphia round-trip?

    Cheapflights users have booked flights from Louisville to Philadelphia round-trip from $180. Spirit Airlines is 60% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Louisville to Philadelphia for a low price.

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

    Consider Republic Airways (86%), Aer Lingus (79%) or Piedmont Airlines (79%) 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 $528, our data indicates the cheapest price to be $118. The most popular route (Louisville Intl - Philadelphia), is priced around $180.

  • 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, August is the cheapest month in which you can book a flight from Louisville to Philadelphia (average of $236). Flying from Louisville to Philadelphia in March is currently the most expensive (average of $295). 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
Vineland
Wildwood
King of Prussia
Pottstown
Cherry Hill
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

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Alternative routes for Louisville to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$165Average$241FlexibilityNo cancel feeOn-time65%
DeltaCheapest$226Average$356FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$238Average$427FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$277Average$479FlexibilityNo cancel feeOn-time71%

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