SDF - PHL

$89 Find Cheap Flights from Louisville to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Philadelphia departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Philadelphia, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$194
Overall average: $458
Multiple Airlines
Thu 1/8Sun 1/11
SDF - PHL • 1 stop
Cheapest non-stop
$469
Typical prices: $408-$575
American Airlines
Sat 12/27Sat 1/10
SDF - PHL • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
American's Main Cabin Extra offers early boarding.
American's Basic Economy is budget-friendly with carry-on.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Spirit Airlines
Cheapest • from $265 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 20% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Philadelphia!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Louisville to Philadelphia (SDF-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Philadelphia

Thu, Jan 8 - Sun, Jan 11
Multiple Airlines Logo
6:00 am - 7:06 pmSDF-PHL
13h 06m1 stop
Multiple Airlines Logo
5:01 am - 11:45 pmPHL-SDF
18h 44m1 stop
$194Multiple Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Multiple Airlines Logo
10:55 am - 11:44 amSDF-PHL
24h 49m2 stops
Multiple Airlines Logo
1:15 pm - 11:45 pmPHL-SDF
10h 30m1 stop
$201Multiple Airlines
Find Deal
Tue, Jan 6 - Sun, Jan 11
Multiple Airlines Logo
5:05 am - 12:31 amSDF-PHL
19h 26m1 stop
Multiple Airlines Logo
5:01 am - 11:45 pmPHL-SDF
18h 44m1 stop
$211Multiple Airlines
Find Deal
Wed, Jan 7 - Fri, Jan 9
Multiple Airlines Logo
5:05 am - 12:31 amSDF-PHL
19h 26m1 stop
Multiple Airlines Logo
8:05 pm - 9:54 amPHL-SDF
13h 49m1 stop
$223Multiple Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
Multiple Airlines Logo
10:55 am - 11:44 amSDF-PHL
24h 49m2 stops
Multiple Airlines Logo
3:14 pm - 9:54 amPHL-SDF
18h 40m1 stop
$230Multiple Airlines
Find Deal
Mon, Nov 10 - Wed, Nov 12
Spirit Airlines Logo
7:11 pm - 2:15 pmSDF-PHL
19h 04m1 stop
Spirit Airlines Logo
3:10 pm - 6:16 pmPHL-SDF
27h 06m1 stop
$265Spirit Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15
Spirit Airlines Logo
7:11 pm - 9:30 amSDF-PHL
14h 19m1 stop
Spirit Airlines Logo
8:51 pm - 6:16 pmPHL-SDF
21h 25m1 stop
$274Spirit Airlines
Find Deal
Sun, Feb 15 - Tue, Feb 17
Southwest Logo
5:25 am - 4:30 pmSDF-PHL
11h 05m2 stops
Southwest Logo
1:15 pm - 9:25 pmPHL-SDF
8h 10m1 stop
$381Southwest
Find Deal
Thu, Dec 25 - Sun, Dec 28
American Airlines Logo
6:27 am - 5:55 pmSDF-PHL
11h 28m1 stop
American Airlines Logo
8:30 am - 10:54 amPHL-SDF
2h 24mnonstop
$382American Airlines
Find Deal
Sun, Feb 15 - Tue, Feb 17
Southwest Logo
5:25 am - 4:30 pmSDF-PHL
11h 05m2 stops
Southwest Logo
5:25 am - 3:30 pmPHL-SDF
10h 05m2 stops
$386Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for Louisville to Philadelphia flights

Get data-powered insights and trends into flights from Louisville to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Philadelphia?

The average price of all round-trip flights from Louisville to Philadelphia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Louisville to Philadelphia, look for departures on Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Philadelphia, Monday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from Louisville to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Philadelphia is June, where tickets cost $377 (return) on average. On the other hand, the most expensive months are August and September, where the average cost of round-trip tickets is $573 and $573 respectively.

Can I save money by flying with a layover from Louisville to Philadelphia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $400 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Philadelphia, you should book around 3 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to Philadelphia

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Qatar Airways

Economy class includes a free checked bag and seatback TV for entertainment.


Business class offers lie-flat seats and potential Qsuite for enhanced privacy.

American Airlines

Consider Main Cabin Extra for early boarding and complimentary drinks on short flights.


Use Basic Economy for budget travel with carry-on only and no changes after 24 hours.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonMarch
Cheapest flight$89
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Louisville to Philadelphia

When to book flights from Louisville to Philadelphia

Are your dates flexible? Find out the best times to travel from Louisville to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Philadelphia

  • What is the cheapest flight from Louisville to Philadelphia?

    In the last 3 days, the lowest price for a flight from Louisville to Philadelphia was $89 for a one-way ticket and $194 for a round-trip.

  • Do I need a passport to fly between Louisville and Philadelphia?

    No, a passport isn't needed to fly from Louisville to Philadelphia. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Philadelphia?

    American Airlines, and Delta offer inflight Wi-Fi service on the Louisville to Philadelphia flight route.

  • Which aircraft models fly most regularly from Louisville to Philadelphia?

    The Embraer 175 is the aircraft model that flies most regularly on the Louisville to Philadelphia flight route.

  • Which airline alliances offer flights from Louisville to Philadelphia?

    SkyTeam, and oneworld are the airline alliances operating flights between Louisville and Philadelphia, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Philadelphia?

    There are nonstop flights from Louisville to Philadelphia on a daily basis.

  • Which is the best airline for flights from Louisville to Philadelphia, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Louisville to Philadelphia are Southwest and Delta. With an average price for the route of $407 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $356 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Louisville to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Louisville with another airline. Booking your flights between Louisville and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $275 or less one-way and $421 or less round-trip.

Prefer to fly direct from Louisville to Philadelphia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Philadelphia.
Find which airlines fly direct from Louisville Intl Airport to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Philadelphia

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Philadelphia to Louisville Intl

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 4 airlines serving from Louisville to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4243 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Everything was great except British airways lost our luggage that was gate checked all the way through to Italy. No one knows currently where one is and the other one may be in route to Amsterdam to meet us but not sure. If you can Hale’s it would be awesome. The website is not helpful.

the plane was not full so the flight attendant had me move to an empty row which made for a good flight. The software for logging on and booking and confirming the flight is much too cumbersome.

Always comes in handy when I want a quick weekend getaway.

For the price I could have taken a “name brand” airline. No drink no snack and constant emails trying to get addition money for EVERYTHING other airlines include in the price. It looks cheaper but it’s Judy bait and switch and emails non stop!

The gate agents for spirit at EWR wouldn’t give me my ticket to board when I arrived 50 min from the flight, saying that I wouldn’t make my flight. They tried to reschedule me to arrive at my destination 14 hours after the original flight, which included a 10 hr layover in another city. I rebooked with another airline and it took me a total of 5 min to go through security. Then I see a charge on my card for a $100 change fee that I did not approve. Beware of this horrible place and these horrible people

Excessive fees for flight delays. What a Scam. I was not able to attend the wedding I needed to go.

Waited at the airport for over 4 hours to board this flight. Terrible airline

Was supposed to take off 8:00 last night. Got delayed till 8:00 this morning

It was terrible, we had to board and unboard the flight with a hour delay that caused me to miss an appointment and a surprise for my wife

When the flight ticket is expensive and you have to purchase check in luggage and there is no snacks, no entertainment, tight seats stuffed in the back of the plane not such good experience. I would like some to reach out to me . I paid for check luggage when I bought the ticket they made me pay again on the return flight extra $70. Very frustrating.

Excellent experience when I am looking for a budget airline where the main expectation is getting me from point A to point B with no frills.

Everything you need to know for your flight from Louisville to Philadelphia

Information on your arrival and departure airports

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