What is the cheapest airline that flies from Philadelphia to Louisville Intl?

Spirit Airlines and Southwest are the most popular carriers operating from Philadelphia to Louisville Intl

Which airport is the most popular layover for flights between Philadelphia and Louisville?

Detroit (DTW) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Philadelphia to Louisville?

Flights connecting via Washington, D.C. (IAD) have the shortest average one-way travel time: 4h 06m.

Which layover airport offers the lowest fares from Philadelphia to Louisville?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $256.

Which layover airport has the shortest connection time from Philadelphia to Louisville?

Washington, D.C. (IAD) has the shortest average layover time for this route: 1h 04m.

How many flights depart from Philadelphia to Louisville on average per week?

The number of flights available between Philadelphia and Louisville is 44 per week as of August 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

How many flights depart from Philadelphia to Louisville on average per day?

As of August 2025, 6 flights take off from Philadelphia and land in Louisville each day. The most common flight departure time for this route is 7:00PM, with 45% of daily flights taking off in the evening.

What airlines fly to Louisville?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Louisville from Philadelphia according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 7 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Louisville Intl Airport?

Prices for flights from Philadelphia Airport to Louisville Intl Airport refresh daily.

How many operators does momondo search for flights from Philadelphia Airport to Louisville Intl Airport?

The number of operators available for flights from Philadelphia Airport to Louisville Intl Airport is 5 as of August 2025.

How old do you have to be to fly from Philadelphia Airport to Louisville Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$93 Cheap Flights from Philadelphia to Louisville in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Philadelphia to Louisville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

1:58 pm - 10:47 pmPHL-SDF

8h 49m1 stop

7:49 am - 12:53 pmSDF-PHL

5h 04m1 stop

$189Spirit Airlines

Find Deal

Wed, Oct 22 - Fri, Oct 24

10:41 am - 10:04 pmPHL-SDF

11h 23m1 stop

7:49 am - 12:53 pmSDF-PHL

5h 04m1 stop

$196Spirit Airlines

Find Deal

Thu, Oct 2 - Mon, Oct 6

5:00 am - 10:04 pmPHL-SDF

17h 04m1 stop

11:17 am - 9:46 amSDF-PHL

22h 29m1 stop

$202

Find Deal

Fri, Sep 5 - Mon, Sep 8

1:58 pm - 10:47 pmPHL-SDF

8h 49m1 stop

7:49 am - 11:47 pmSDF-PHL

15h 58m1 stop

$203Spirit Airlines

Find Deal

Fri, Oct 24 - Mon, Oct 27

5:15 pm - 9:19 amPHL-SDF

16h 04m1 stop

11:17 am - 12:46 amSDF-PHL

13h 29m1 stop

$204

Find Deal

Thu, Sep 11 - Mon, Sep 15

5:25 am - 6:03 pmPHL-SDF

12h 38m1 stop

5:31 pm - 11:36 pmSDF-PHL

6h 05m1 stop

$205Spirit Airlines

Find Deal

Sat, Oct 25 - Wed, Oct 29

8:43 pm - 9:19 amPHL-SDF

12h 36m1 stop

10:14 am - 1:02 pmSDF-PHL

26h 48m1 stop

$206Spirit Airlines

Find Deal

Mon, Sep 8 - Wed, Sep 10

2:07 pm - 10:04 pmPHL-SDF

7h 57m1 stop

8:23 am - 11:47 pmSDF-PHL

15h 24m1 stop

$207Spirit Airlines

Find Deal

Sun, Sep 7 - Tue, Sep 9

5:10 am - 10:04 pmPHL-SDF

16h 54m1 stop

8:23 am - 12:46 amSDF-PHL

16h 23m1 stop

$208

Find Deal

Fri, Sep 5 - Mon, Sep 8

8:43 pm - 9:19 amPHL-SDF

12h 36m1 stop

11:17 am - 12:46 amSDF-PHL

13h 29m1 stop

$210

Find Deal

Fri, Sep 12 - Mon, Sep 15

Spirit Airlines flights from Philadelphia to Louisville

Our best Spirit Airlines deals on Philadelphia to Louisville flight tickets

Spirit Airlines

Oct 22

PHL1:58 pmPhiladelphia

8h 49m

1 stop

SDF10:47 pmLouisville Intl

Oct 24

SDF7:49 amLouisville Intl

5h 04m

1 stop

PHL12:53 pmPhiladelphia

$189

Find similar

Spirit Airlines

Oct 2

PHL10:41 amPhiladelphia

11h 23m

1 stop

SDF10:04 pmLouisville Intl

Oct 6

SDF7:49 amLouisville Intl

5h 04m

1 stop

PHL12:53 pmPhiladelphia

$196

Find similar

Spirit Airlines

Oct 24

PHL1:58 pmPhiladelphia

8h 49m

1 stop

SDF10:47 pmLouisville Intl

Oct 27

SDF7:49 amLouisville Intl

15h 58m

1 stop

PHL11:47 pmPhiladelphia

$203

Find similar

American Airlines flights from Philadelphia to Louisville

Our best American Airlines deals on Philadelphia to Louisville flight tickets

American Airlines

Aug 30

PHL7:14 pmPhiladelphia

2h 24m

SDF9:38 pmLouisville Intl

Aug 31

SDF3:09 pmLouisville Intl

2h 06m

PHL5:15 pmPhiladelphia

$470

Find similar

American Airlines

Aug 30

PHL7:14 pmPhiladelphia

2h 24m

SDF9:38 pmLouisville Intl

Sep 1

SDF10:50 amLouisville Intl

2h 05m

PHL12:55 pmPhiladelphia

$556

Find similar

American Airlines

Aug 30

PHL8:30 amPhiladelphia

6h 15m

1 stop

SDF2:45 pmLouisville Intl

Sep 1

SDF10:50 amLouisville Intl

2h 05m

PHL12:55 pmPhiladelphia

$566

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Wed 10/22

1:58 pm-10:47 pm

1 stop8h 49m

Louisville Intl

Fri 10/24

7:49 am-12:53 pm

1 stop5h 04m

$189

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Thu 10/2

10:41 am-10:04 pm

1 stop11h 23m

Louisville Intl

Mon 10/6

7:49 am-12:53 pm

1 stop5h 04m

$196

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 9/5

5:00 am-10:04 pm

1 stop17h 04m

Louisville Intl

Mon 9/8

11:17 am-9:46 am

1 stop22h 29m

$202

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 10/24

1:58 pm-10:47 pm

1 stop8h 49m

Louisville Intl

Mon 10/27

7:49 am-11:47 pm

1 stop15h 58m

$203

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Thu 9/11

5:15 pm-9:19 am

1 stop16h 04m

Louisville Intl

Mon 9/15

11:17 am-12:46 am

1 stop13h 29m

$204

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Sat 10/25

5:25 am-6:03 pm

1 stop12h 38m

Louisville Intl

Wed 10/29

5:31 pm-11:36 pm

1 stop6h 05m

$205

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Mon 9/8

8:43 pm-9:19 am

1 stop12h 36m

Louisville Intl

Wed 9/10

10:14 am-1:02 pm

1 stop26h 48m

$206

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Sun 9/7

2:07 pm-10:04 pm

1 stop7h 57m

Louisville Intl

Tue 9/9

8:23 am-11:47 pm

1 stop15h 24m

$207

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 9/5

5:10 am-10:04 pm

1 stop16h 54m

Louisville Intl

Mon 9/8

8:23 am-12:46 am

1 stop16h 23m

$208

PhiladelphiaLouisville

PHL - SDF

PHLSDF

Philadelphia

Fri 9/12

8:43 pm-9:19 am

1 stop12h 36m

Louisville Intl

Mon 9/15

11:17 am-12:46 am

1 stop13h 29m

$210

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of February, then departing from Philadelphia during the month May is also very affordable. Most momondo users find prices during this month for around $423.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Philadelphia is on a Monday. momondo users have found tickets for Monday departures for as low as $469. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Philadelphia to Louisville on a Sunday will generally be more expensive and average around $541. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Philadelphia to Louisville flights are usually those with departure times at noon. Our users have found flights to Louisville at noon for as low as $474. In the evening is when there is more demand to fly to Louisville, so prices are often more expensive at around $529 per ticket.

What is the cheapest Philadelphia to Louisville Intl flight route?

Fly from Philadelphia to Louisville Intl for the best Philadelphia - Louisville Intl flight prices

How far in advance should I book a flight to Louisville?

You are more likely to see cheaper flights to Louisville from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $472 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Philadelphia for as low as $360 on momondo.

What cabin class options are available on Philadelphia to Louisville Intl flights?

There are 3 cabin classes available to choose from on Philadelphia to Louisville Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Louisville flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Louisville.

How have Philadelphia to Louisville flight prices changed over time?

As of August 2025, prices for Philadelphia to Louisville flights are approximately 169% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Louisville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Louisville (PHL to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Louisville

Best Price Found	$433
Fastest flight time	2h 02m
Direct flights	Tue, Wed, Thu, Fri and Sat
Airports in Louisville	1 airport

The best one-way flight to Louisville from Philadelphia in the past 72 hours is $433. The best round-trip flight deal from Philadelphia to Louisville found on momondo in the last 72 hours is $509.

The fastest flight from Philadelphia to Louisville takes 2h 02m

Direct flights go from Philadelphia to Louisville on Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is American Airlines.

There is 1 airport near Louisville: Louisville Intl (SDF)

Search flight deals

How far is Philadelphia to Louisville Intl by plane?
Philadelphia and Louisville Intl are 579.7 mi apart from one another. 7h 57m is a normal flight duration for this route.
When did momondo last update prices for flights from Philadelphia Airport to Louisville Intl Airport?
Prices for flights from Philadelphia Airport to Louisville Intl Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to Louisville Intl Airport?
The number of operators available for flights from Philadelphia Airport to Louisville Intl Airport is 5 as of August 2025.
How old do you have to be to fly from Philadelphia Airport to Louisville Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Philadelphia to Louisville?
momondo data reveals that the most frequently booked plane model on the route from Philadelphia to Louisville is Embraer 175, representing 37.96% of all bookings. The subsequent popular models are Embraer ERJ-145 at 35.92%, Canadair (Bombardier) Regional Jet 900 at 16.33%, and Canadair (Bombardier) Regional Jet 700 at 2.04%.
What is the most popular airline from Philadelphia to Louisville?
Based on momondo bookings for flights between Philadelphia and Louisville, the leading airline is American Airlines, making up 77% of the total bookings. Other popular airlines include Southwest with 10%, Delta with 7%, and Spirit Airlines with 3%.

Best airlines flying from Philadelphia to Louisville

Compare and see reviews for airlines that fly from Philadelphia to Louisville with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $166	Free Cancellation	Rating 6.3 8,035 reviews	Search Spirit Airlines flights
Delta	PriceFrom $226	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $256	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights
Southwest	PriceFrom $258	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

American Airlines Flights From Philadelphia to Louisville
American Airlines flight deals from Philadelphia to Louisville start from $310 round-trip. Over the 18 American Airlines flights for this route in a normal week, average airfare is usually $504 round-trip - but some users have found much cheaper deals with momondo.

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Springfield

Brandenburg

Georgetown

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Louisville?

Finding the right flight to Louisville from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Louisville quick and easy, saving you time and money.

Can I find flights from Philadelphia to Louisville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Louisville from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Louisville?

momondo helps you find the best flight between Philadelphia and Louisville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Philadelphia to Louisville right now. Can momondo alert me if prices change?

Price alerts on flights to Louisville from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Louisville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 8/26

Tue 9/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Kentucky

Lexington Blue Grass Airport

Owensboro Daviess County Airport

Paducah Barkley Regional Airport

Popular cities in the United States

Flights to New Yorkfrom $47

Flights to Los Angelesfrom $47

Flights to Miamifrom $50

Flights to Chicagofrom $45

Flights to Orlandofrom $47

Flights to Las Vegasfrom $25

Flights to San Franciscofrom $54

Flights to Washington, D.C.from $52

Flights to Bostonfrom $47

Flights to Atlantafrom $48

Flights to Dallasfrom $50

Flights to Seattlefrom $76

Cheap flights from Philadelphia to Louisville from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Louisville departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Philadelphia to Louisville

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from Philadelphia to Louisville

Our best Spirit Airlines deals on Philadelphia to Louisville flight tickets

American Airlines flights from Philadelphia to Louisville

Our best American Airlines deals on Philadelphia to Louisville flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Louisville that are best for you.

See travel insights to Louisville from

How to get the cheapest flight ticket from Philadelphia to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of February, then departing from Philadelphia during the month May is also very affordable. Most momondo users find prices during this month for around $423.

What is the cheapest day to depart on your flight to Louisville?

What is the cheapest time of day to depart on your flight to Louisville?

What is the cheapest Philadelphia to Louisville Intl flight route?

Fly from Philadelphia to Louisville Intl for the best Philadelphia - Louisville Intl flight prices

How far in advance should I book a flight to Louisville?

What cabin class options are available on Philadelphia to Louisville Intl flights?

There are 3 cabin classes available to choose from on Philadelphia to Louisville Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Louisville flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Louisville.

How have Philadelphia to Louisville flight prices changed over time?

As of August 2025, prices for Philadelphia to Louisville flights are approximately 169% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Philadelphia to Louisville Intl?

Spirit Airlines and Southwest are the most popular carriers operating from Philadelphia to Louisville Intl

What airlines fly to Louisville?

Which airport is the most popular layover for flights between Philadelphia and Louisville?

Detroit (DTW) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Philadelphia to Louisville?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $256.

Which layover airport has the shortest travel time from Philadelphia to Louisville?

Flights connecting via Washington, D.C. (IAD) have the shortest average one-way travel time: 4h 06m.

Which layover airport has the shortest connection time from Philadelphia to Louisville?

Washington, D.C. (IAD) has the shortest average layover time for this route: 1h 04m.

How many flights depart from Philadelphia to Louisville on average per day?

As of August 2025, 6 flights take off from Philadelphia and land in Louisville each day. The most common flight departure time for this route is 7:00PM, with 45% of daily flights taking off in the evening.

How many flights depart from Philadelphia to Louisville on average per week?

The number of flights available between Philadelphia and Louisville is 44 per week as of August 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

When to book flights from Philadelphia to Louisville

Cheap Philadelphia to Louisville (PHL to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Louisville

Best Price Found

Fastest flight time

Direct flights

Airports in Louisville

How far is Philadelphia to Louisville Intl by plane?

When did momondo last update prices for flights from Philadelphia Airport to Louisville Intl Airport?

How many operators does momondo search for flights from Philadelphia Airport to Louisville Intl Airport?

How old do you have to be to fly from Philadelphia Airport to Louisville Intl Airport?

What documentation or ID do you need to fly to Louisville Intl Airport?

What is the most popular plane model from Philadelphia to Louisville?

What is the most popular airline from Philadelphia to Louisville?

Best airlines flying from Philadelphia to Louisville

Compare and see reviews for airlines that fly from Philadelphia to Louisville with momondo

American Airlines Flights From Philadelphia to Louisville

Traveling to a place near Louisville?

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Louisville?

Can I find flights from Philadelphia to Louisville with flexible booking policies on momondo?

How can momondo help me find flights from Philadelphia to Louisville?

I’m not ready to book a flight from Philadelphia to Louisville right now. Can momondo alert me if prices change?

An easier way to manage your Louisville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States