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

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

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

The number of flights available between Louisville and Philadelphia is 6 per day as of May 2026. The most frequent departure time is 7:00AM, with 56% of daily flights leaving in the afternoon.

What airlines fly to Philadelphia?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Philadelphia from Louisville according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 7 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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

As of May 2026, 42 flights take off from Louisville and land in Philadelphia each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

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

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

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

There are 3 operators available for flights from Louisville Intl Airport to Philadelphia Airport as of May 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$99 Cheap Flights from Louisville to Philadelphia in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $601 to $419. The lowest price recently found on this route was $294.

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Find the cheapest flights from Louisville to Philadelphia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:06 pm - 12:44 am

SDF

PHL

28h 38m

2 stops

6:00 am - 11:30 am

PHL

SDF

29h 30m

1 stop

$294Multiple Airlines

Wed, May 27 - Tue, Jun 2

1:11 pm - 8:11 pm

SDF

PHL

7h 00m

1 stop

5:16 pm - 8:36 am

PHL

SDF

15h 20m

1 stop

$310Multiple Airlines

Sat, Aug 8 - Tue, Aug 11

9:05 pm - 3:37 pm

SDF

PHL

18h 32m

1 stop

5:16 pm - 8:36 am

PHL

SDF

15h 20m

1 stop

$313Multiple Airlines

Mon, Jun 15 - Tue, Jun 23

8:06 pm - 4:38 pm

SDF

PHL

20h 32m

1 stop

6:00 am - 11:30 am

PHL

SDF

29h 30m

1 stop

$314Multiple Airlines

Wed, May 27 - Tue, Jun 2

6:51 am - 4:50 pm

SDF

PHL

9h 59m

1 stop

8:40 pm - 11:08 pm

PHL

SDF

2h 28mnonstop

$316American Airlines

Tue, Jun 9 - Tue, Jun 9

9:05 pm - 3:37 pm

SDF

PHL

18h 32m

1 stop

8:43 pm - 8:09 pm

PHL

SDF

23h 26m

1 stop

$319Multiple Airlines

Mon, Jun 15 - Wed, Jun 24

1:11 pm - 8:11 pm

SDF

PHL

7h 00m

1 stop

8:00 am - 8:36 am

PHL

SDF

24h 36m

2 stops

$322Multiple Airlines

Sat, Aug 8 - Tue, Aug 11

9:10 pm - 3:44 pm

SDF

PHL

18h 34m

1 stop

7:13 pm - 8:36 am

PHL

SDF

13h 23m

1 stop

$323Multiple Airlines

Mon, Aug 10 - Fri, Aug 14

6:55 pm - 6:40 pm

SDF

PHL

23h 45m

2 stops

6:00 am - 11:30 am

PHL

SDF

29h 30m

1 stop

$324Multiple Airlines

Thu, May 28 - Tue, Jun 2

2:27 pm - 6:40 pm

SDF

PHL

4h 13m

1 stop

6:00 am - 11:30 am

PHL

SDF

29h 30m

1 stop

$325Multiple Airlines

Thu, May 28 - Tue, Jun 2

Southwest flights from Louisville to Philadelphia

Our best Southwest deals on Louisville to Philadelphia flight tickets

Southwest

May 30

SDF8:40 amLouisville Intl

6h 25m

1 stop

PHL3:05 pmPhiladelphia

Jun 3

PHL9:10 amPhiladelphia

5h 35m

1 stop

SDF2:45 pmLouisville Intl

$373

Southwest

Jun 9

SDF7:25 amLouisville Intl

5h 45m

1 stop

PHL1:10 pmPhiladelphia

Jun 10

PHL12:55 pmPhiladelphia

8h 45m

2 stops

SDF9:40 pmLouisville Intl

$376

Southwest

May 30

SDF3:15 pmLouisville Intl

6h 20m

1 stop

PHL9:35 pmPhiladelphia

Jun 3

PHL6:20 amPhiladelphia

8h 45m

2 stops

SDF3:05 pmLouisville Intl

$378

American Airlines flights from Louisville to Philadelphia

Our best American Airlines deals on Louisville to Philadelphia flight tickets

American Airlines

Jun 9

SDF6:51 amLouisville Intl

9h 59m

1 stop

PHL4:50 pmPhiladelphia

Jun 9

PHL8:40 pmPhiladelphia

2h 28m

SDF11:08 pmLouisville Intl

$316

American Airlines

May 23

SDF8:08 pmLouisville Intl

20h 42m

2 stops

PHL4:50 pmPhiladelphia

May 24

PHL8:40 pmPhiladelphia

2h 28m

SDF11:08 pmLouisville Intl

$429

American Airlines

May 23

SDF6:26 pmLouisville Intl

22h 22m

1 stop

PHL4:48 pmPhiladelphia

May 24

PHL8:40 pmPhiladelphia

2h 28m

SDF11:08 pmLouisville Intl

$514

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 5/27

8:06 pm-12:44 am

2 stops28h 38m

Philadelphia

Tue 6/2

6:00 am-11:30 am

1 stop29h 30m

$294

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 8/8

1:11 pm-8:11 pm

1 stop7h 00m

Philadelphia

Tue 8/11

5:16 pm-8:36 am

1 stop15h 20m

$310

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 6/15

9:05 pm-3:37 pm

1 stop18h 32m

Philadelphia

Tue 6/23

5:16 pm-8:36 am

1 stop15h 20m

$313

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 5/27

8:06 pm-4:38 pm

1 stop20h 32m

Philadelphia

Tue 6/2

6:00 am-11:30 am

1 stop29h 30m

$314

Quickest round-trip

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 6/9

6:51 am-4:50 pm

1 stop9h 59m

Philadelphia

Tue 6/9

8:40 pm-11:08 pm

Nonstop2h 28m

$316

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 6/15

9:05 pm-3:37 pm

1 stop18h 32m

Philadelphia

Wed 6/24

8:43 pm-8:09 pm

1 stop23h 26m

$319

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 8/8

1:11 pm-8:11 pm

1 stop7h 00m

Philadelphia

Tue 8/11

8:00 am-8:36 am

2 stops24h 36m

$322

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 8/10

9:10 pm-3:44 pm

1 stop18h 34m

Philadelphia

Fri 8/14

7:13 pm-8:36 am

1 stop13h 23m

$323

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 5/28

6:55 pm-6:40 pm

2 stops23h 45m

Philadelphia

Tue 6/2

6:00 am-11:30 am

1 stop29h 30m

$324

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 5/28

2:27 pm-6:40 pm

1 stop4h 13m

Philadelphia

Tue 6/2

6:00 am-11:30 am

1 stop29h 30m

$325

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 Louisville to Philadelphia

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 Louisville and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Louisville is in June. Flight prices, which tend to average around $426, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Philadelphia, with average flight prices from Louisville averaging around $469.

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

The cheapest day to depart from Louisville to Philadelphia is on a Saturday. Travelers who choose to depart for Philadelphia on a Saturday will often find tickets for as low as $478. On the other hand, Tuesday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $858.

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

According to our data, the cheapest time of day to fly to Philadelphia is in the morning. momondo users have found flights departing from Louisville to Philadelphia in the morning for as low as $504. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $1,005.

What is the cheapest Louisville Intl to Philadelphia flight route?

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

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

You are more likely to see cheaper flights to Philadelphia from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $533 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Louisville for as low as $391 on momondo.

Can stopping save me money on Louisville to Philadelphia flights?

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

How have Louisville to Philadelphia flight prices changed over time?

As of May 2026, prices for Louisville to Philadelphia flights are approximately 66% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to Philadelphia

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

Estimated round-trip price

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

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

Best Price Found	$248
Fastest flight time	2h 02m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Louisville in the past 72 hours is $248. The best round-trip flight deal from Louisville to Philadelphia found on momondo in the last 72 hours is $533.

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

Direct flights go from Louisville to Philadelphia every day.

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

Search flight deals

Frequently asked questions about flying from Louisville to Philadelphia

How far is Louisville Intl to Philadelphia by plane?
Louisville Intl and Philadelphia are 579.7 mi apart from one another. Typically, this will take 2h 02m by plane in normal conditions.
When did momondo last update prices for flights from Louisville Intl Airport to Philadelphia Airport?
Prices for flights from Louisville Intl Airport to Philadelphia Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Philadelphia Airport?
There are 3 operators available for flights from Louisville Intl Airport to Philadelphia Airport as of May 2026.
How old do you have to be to fly from Louisville Intl Airport to Philadelphia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Louisville to Philadelphia?
Based on momondo bookings for flights between Louisville and Philadelphia, the leading plane model is Embraer 175, making up 33.33% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet 900 with 22.78%, Embraer ERJ-145 with 18.57%, and Airbus A319 with 4.64%.
What is the most popular airline from Louisville to Philadelphia?
Based on momondo bookings for flights between Louisville and Philadelphia, the leading airline is American Airlines, making up 86% of the total bookings. Other popular airlines include Southwest with 9% and Spirit Airlines with 4%.

Best airlines flying from Louisville to Philadelphia

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $119	Free Cancellation	Rating 6.3 8,632 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $215	Free Cancellation	Rating 8.0 4,295 reviews	Search Southwest flights
American Airlines	PriceFrom $277	Free Cancellation	Rating 7.1 11,661 reviews	Search American Airlines flights

American Airlines Flights From Louisville to Philadelphia
The lowest priced American Airlines flight from Louisville to Philadelphia from the last 72 hours was $277. Generally, American Airlines has 14 flights on this route every week with an average price of $550. American Airlines is rated 7.1/10 by our users.

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Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

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Reading

Dover

Avalon

North Wildwood

Lewes

Stone Harbor

New Castle

Essington

Vineland

Pottstown

Somers Point

Why use momondo?

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

Finding the right flight to Philadelphia from Louisville 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 Philadelphia quick and easy, saving you time and money.

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

Flights from Louisville to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Philadelphia from Louisville.

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

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Louisville and alert you when they change.