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

Southwest is the most popular carrier operating from Philadelphia to Louisville Intl

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

As of August 2026, 4 flights take off from Philadelphia and land in Louisville each day. The most common flight departure time for this route is 8:00PM, with 60% 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 33 per week as of August 2026. The most frequent departure day is Fri, with 21% of weekly flights leaving on this day.

What airlines fly to Louisville?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Louisville from Philadelphia according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 6 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 2 as of August 2026.

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.

$91 Cheap Flights from Philadelphia to Louisville in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Louisville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:50 pm - 10:35 amPHL Philadelphia-SDF Louisville Intl

20h 45m1 stop Fort Lauderdale

9:09 pm - 12:30 amSDF Louisville Intl-PHL Philadelphia

27h 21m1 stop Tampa

$174Multiple Airlines

Thu, Sep 10 - Thu, Sep 17

1:50 pm - 10:35 amPHL Philadelphia-SDF Louisville Intl

20h 45m1 stop Fort Lauderdale

9:09 pm - 12:30 amSDF Louisville Intl-PHL Philadelphia

27h 21m1 stop Tampa

$179Multiple Airlines

Thu, Sep 10 - Thu, Sep 17

6:00 am - 8:29 pmPHL Philadelphia-SDF Louisville Intl

14h 29m1 stop Tampa

9:09 pm - 12:30 amSDF Louisville Intl-PHL Philadelphia

27h 21m1 stop Tampa

$191Multiple Airlines

Sun, Sep 27 - Thu, Oct 1

6:00 am - 8:29 pmPHL Philadelphia-SDF Louisville Intl

14h 29m1 stop Tampa

9:09 pm - 7:24 pmSDF Louisville Intl-PHL Philadelphia

22h 15m1 stop Tampa

$212Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

6:00 am - 12:15 pmPHL Philadelphia-SDF Louisville Intl

6h 15m1 stop Nashville Intl

4:35 pm - 8:55 pmSDF Louisville Intl-PHL Philadelphia

4h 20m1 stop Nashville Intl

$288Southwest

Wed, Oct 14 - Sat, Oct 17

10:45 am - 3:15 pmPHL Philadelphia-SDF Louisville Intl

4h 30m1 stop Chicago Midway

3:20 pm - 10:05 pmSDF Louisville Intl-PHL Philadelphia

6h 45m1 stop Nashville Intl

$288Southwest

Wed, Sep 9 - Thu, Sep 10

10:45 am - 3:15 pmPHL Philadelphia-SDF Louisville Intl

4h 30m1 stop Chicago Midway

3:20 pm - 10:05 pmSDF Louisville Intl-PHL Philadelphia

6h 45m1 stop Nashville Intl

$288Southwest

Wed, Sep 9 - Thu, Sep 10

12:41 pm - 9:35 pmPHL Philadelphia-SDF Louisville Intl

8h 54m1 stop Chicago O'Hare Intl

4:53 pm - 6:53 pmSDF Louisville Intl-PHL Philadelphia

2h 00mnonstop

$428American Airlines

Wed, Oct 14 - Sat, Oct 17

12:42 pm - 9:25 pmPHL Philadelphia-SDF Louisville Intl

8h 43m1 stop Chicago O'Hare Intl

7:31 am - 9:34 amSDF Louisville Intl-PHL Philadelphia

2h 03mnonstop

$448American Airlines

Wed, Sep 2 - Sat, Sep 5

12:42 pm - 9:25 pmPHL Philadelphia-SDF Louisville Intl

8h 43m1 stop Chicago O'Hare Intl

7:31 am - 9:34 amSDF Louisville Intl-PHL Philadelphia

2h 03mnonstop

$448American Airlines

Wed, Sep 2 - Sat, Sep 5

Cheap last minute flights

Enter your travel dates to find the best prices.

8:35 am - 10:32 amPHL Philadelphia-SDF Louisville Intl

25h 57m1 stop Tampa

9:10 pm - 12:43 amSDF Louisville Intl-PHL Philadelphia

27h 33m1 stop Fort Lauderdale

$544Multiple Airlines

Wed, Aug 12 - Fri, Aug 14

2:59 pm - 10:32 amPHL Philadelphia-SDF Louisville Intl

19h 33m2 stops Fort Lauderdale Tampa

9:10 pm - 12:43 amSDF Louisville Intl-PHL Philadelphia

27h 33m1 stop Fort Lauderdale

$571Multiple Airlines

Wed, Aug 12 - Fri, Aug 14

5:20 am - 2:40 pmPHL Philadelphia-SDF Louisville Intl

9h 20m1 stop Orlando

6:55 pm - 4:13 pmSDF Louisville Intl-PHL Philadelphia

21h 18m2 stops Pittsburgh Raleigh-Durham

$573Multiple Airlines

Thu, Aug 13 - Thu, Aug 13

10:34 am - 4:38 pmPHL Philadelphia-SDF Louisville Intl

6h 04m1 stop Chicago O'Hare Intl

1:56 pm - 6:54 pmSDF Louisville Intl-PHL Philadelphia

4h 58m1 stop Washington, D.C. Dulles Intl

$594United Airlines

Thu, Aug 13 - Sat, Aug 15

3:31 pm - 5:48 pmPHL Philadelphia-SDF Louisville Intl

2h 17mnonstop

12:32 pm - 2:37 pmSDF Louisville Intl-PHL Philadelphia

2h 05mnonstop

$595American Airlines

Thu, Aug 13 - Sat, Aug 15

3:31 pm - 5:48 pmPHL Philadelphia-SDF Louisville Intl

2h 17mnonstop

6:28 am - 11:30 amSDF Louisville Intl-PHL Philadelphia

5h 02m1 stop Chicago O'Hare Intl

$605American Airlines

Thu, Aug 13 - Sat, Aug 15

3:31 pm - 5:48 pmPHL Philadelphia-SDF Louisville Intl

2h 17mnonstop

7:31 am - 9:34 amSDF Louisville Intl-PHL Philadelphia

2h 03mnonstop

$613American Airlines

Fri, Aug 14 - Sun, Aug 16

2:05 pm - 10:35 pmPHL Philadelphia-SDF Louisville Intl

8h 30m2 stops Chicago Midway Baltimore/Washington

12:05 pm - 9:25 pmSDF Louisville Intl-PHL Philadelphia

9h 20m2 stops Nashville Intl Orlando

$625Southwest

Thu, Aug 13 - Sat, Aug 15

7:15 am - 3:15 pmPHL Philadelphia-SDF Louisville Intl

8h 00m2 stops Nashville Intl Chicago Midway

6:45 am - 3:25 pmSDF Louisville Intl-PHL Philadelphia

8h 40m2 stops Nashville Intl Orlando

$625Southwest

Wed, Aug 12 - Fri, Aug 14

2:10 pm - 9:55 pmPHL Philadelphia-SDF Louisville Intl

7h 45m2 stops Nashville Intl Orlando

7:25 pm - 11:15 pmSDF Louisville Intl-PHL Philadelphia

3h 50m1 stop Chicago Midway

$638Southwest

Fri, Aug 14 - Sun, Aug 16

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Southwest flights from Philadelphia to Louisville

Our best Southwest deals on Philadelphia to Louisville flight tickets

Southwest

Sep 9

PHL10:45 amPhiladelphia

4h 30m

1 stop

SDF3:15 pmLouisville Intl

Sep 10

SDF3:20 pmLouisville Intl

6h 45m

1 stop

PHL10:05 pmPhiladelphia

$288

Southwest

Sep 9

PHL1:45 pmPhiladelphia

6h 55m

1 stop

SDF8:40 pmLouisville Intl

Sep 10

SDF6:45 amLouisville Intl

8h 40m

2 stops

PHL3:25 pmPhiladelphia

$294

Southwest

Sep 9

PHL7:15 amPhiladelphia

8h 00m

2 stops

SDF3:15 pmLouisville Intl

Sep 10

SDF6:45 amLouisville Intl

8h 40m

2 stops

PHL3:25 pmPhiladelphia

$299

United Airlines flights from Philadelphia to Louisville

Our best United Airlines deals on Philadelphia to Louisville flight tickets

United Airlines

Aug 13

PHL10:34 amPhiladelphia

6h 04m

1 stop

SDF4:38 pmLouisville Intl

Aug 15

SDF1:56 pmLouisville Intl

4h 58m

1 stop

PHL6:54 pmPhiladelphia

$594

United Airlines

Aug 14

PHL10:34 amPhiladelphia

6h 11m

1 stop

SDF4:45 pmLouisville Intl

Aug 16

SDF7:10 amLouisville Intl

5h 13m

1 stop

PHL12:23 pmPhiladelphia

$633

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Thu 9/10

1:50 pm-10:35 am

1 stop20h 45m

Louisville Intl

Thu 9/17

9:09 pm-12:30 am

1 stop27h 21m

$174

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Thu 9/10

1:50 pm-10:35 am

1 stop20h 45m

Louisville Intl

Thu 9/17

9:09 pm-12:30 am

1 stop27h 21m

$179

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Sun 9/27

6:00 am-8:29 pm

1 stop14h 29m

Louisville Intl

Thu 10/1

9:09 pm-12:30 am

1 stop27h 21m

$191

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Thu 10/15

6:00 am-8:29 pm

1 stop14h 29m

Louisville Intl

Thu 10/22

9:09 pm-7:24 pm

1 stop22h 15m

$212

Quickest round-trip

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 10/14

6:00 am-12:15 pm

1 stop6h 15m

Louisville Intl

Sat 10/17

4:35 pm-8:55 pm

1 stop4h 20m

$288

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 9/9

10:45 am-3:15 pm

1 stop4h 30m

Louisville Intl

Thu 9/10

3:20 pm-10:05 pm

1 stop6h 45m

$288

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 9/9

10:45 am-3:15 pm

1 stop4h 30m

Louisville Intl

Thu 9/10

3:20 pm-10:05 pm

1 stop6h 45m

$288

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 10/14

12:41 pm-9:35 pm

1 stop8h 54m

Louisville Intl

Sat 10/17

4:53 pm-6:53 pm

Nonstop2h 00m

$428

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 9/2

12:42 pm-9:25 pm

1 stop8h 43m

Louisville Intl

Sat 9/5

7:31 am-9:34 am

Nonstop2h 03m

$448

PhiladelphiaLouisville

PHL Philadelphia - SDF Louisville Intl

PHLSDF

Philadelphia

Wed 9/2

12:42 pm-9:25 pm

1 stop8h 43m

Louisville Intl

Sat 9/5

7:31 am-9:34 am

Nonstop2h 03m

$448

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

Other information

What is the typical price of a round-trip flight between Philadelphia and Louisville?

Prices are currently low for flights on this route.

Typical prices usually range from $485 to $615.
The lowest price recently found on this route was $174.

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of May, then departing from Philadelphia during the month February is also very affordable. Most momondo users find prices during this month for around $543.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $534. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Philadelphia to Louisville on a Monday will generally be more expensive and average around $755. 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 in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $553. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $671 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 from Philadelphia 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 $554 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 $436 on momondo.

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

There are 2 cabin classes available to choose from on Philadelphia to Louisville flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Philadelphia to Louisville flight prices changed over time?

As of August 2026, prices for Philadelphia to Louisville flights are approximately 45% 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	$354
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Philadelphia in the past 72 hours is $354. The best round-trip flight deal from Philadelphia to Louisville found on momondo in the last 72 hours is $553.

The fastest flight from Philadelphia to Louisville takes 2h 05m

Direct flights go from Philadelphia to Louisville every day.

There is 1 airport in Louisville. From Philadelphia there are direct flights to Louisville Intl (SDF).

Search flight deals

Frequently asked questions about flying from Philadelphia to Louisville

How far is Philadelphia to Louisville Intl by plane?
Philadelphia and Louisville Intl are 579.7 mi apart from one another. 2h 05m 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 2 as of August 2026.
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 38.10% of all bookings. The subsequent popular models are Embraer ERJ-145 at 27.89%, Canadair (Bombardier) Regional Jet 900 at 21.09%, and Embraer ERJ-135 / ERJ-140 / ERJ-145 at 3.40%.
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 94% of the total bookings. Other popular airlines include Southwest with 6%.

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
Southwest	PriceFrom $189	Free Cancellation	Rating 8.0 4,218 reviews		Search Southwest flights
American Airlines	PriceFrom $469	Free Cancellation	Rating 7.1 11,899 reviews		Search American Airlines flights

American Airlines Flights From Philadelphia to Louisville
American Airlines flight deals from Philadelphia to Louisville start from $469 round-trip. Over the 13 American Airlines flights for this route in a normal week, average airfare is usually $559 round-trip - but some users have found much cheaper deals with momondo.

French Lick

Elizabethtown

Jeffersonville

West Baden Springs

Bardstown

New Albany

Shepherdsville

Elizabeth

Charlestown

Corydon

Brandenburg

Georgetown

Springfield

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.

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Airports servicing Kentucky

Lexington Blue Grass Airport

Owensboro Daviess County Airport

Paducah Barkley Regional Airport

Cheap flights from Philadelphia to Louisville from $91

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 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from Philadelphia to Louisville

Our best Southwest deals on Philadelphia to Louisville flight tickets

United Airlines flights from Philadelphia to Louisville

Our best United Airlines deals on Philadelphia to Louisville flight tickets

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How to get the cheapest flight ticket from Philadelphia to Louisville

What is the typical price of a round-trip flight between Philadelphia and Louisville?

What is the cheapest month to fly to Louisville?

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?

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

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

How have Philadelphia to Louisville flight prices changed over time?

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

What airlines fly to Louisville?

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

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

When to book flights from Philadelphia to Louisville

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

Best Price Found

Fastest flight time

Direct flights

Airports in Louisville

Frequently asked questions about flying 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

Traveling to a place near Louisville?

Why use momondo?

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

Airports servicing Kentucky

Fly your favorite airline to Louisville

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Louisville

List of cabin classes available on flights landing in Louisville. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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