Cheap Flights from Philadelphia to Louisville Muhammad Ali International

Compare Philadelphia to Louisville Muhammad Ali International flight deals

Find the cheapest month or even day of the year to fly to Louisville Muhammad Ali International

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Flight deals from Philadelphia to Louisville Muhammad Ali International

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia to Louisville Muhammad Ali International Airport? If you want to travel next month, round-trip fares start from AED 1,238. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Philadelphia to Louisville Muhammad Ali International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Louisville Muhammad Ali International flights are currently cheapest in September.

Direct flights from Philadelphia to Louisville Muhammad Ali International

Philadelphia to Louisville Muhammad Ali International: Alternative routes

Compare routes from Philadelphia to Louisville below. You may find an airport to fly into that's cheaper, faster, or easier than Louisville Muhammad Ali International.

Philadelphia to Louisville: Flight information

The things to know before you go.
Cheapest flight foundAED 418
Cheapest month to flySeptember
Average flight time2 hrs, 20 mins
Most popular airlineAmerican Airlines
Average flights per week73

Finding cheap flights from Philadelphia to Louisville Muhammad Ali International: Frequently asked questions

The best price we found for a round-trip flight from Philadelphia to Louisville Muhammad Ali International is AED 1,054. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 20 minutes is the average flight time from Philadelphia to Louisville Muhammad Ali International.
American Airlines, Alaska Airlines and Piedmont Airlines fly direct from Philadelphia to Louisville Muhammad Ali International.
There are 73 flights per week flying from Philadelphia to Louisville Muhammad Ali International, as of May 2026.
The cheapest month to fly from Philadelphia to Louisville Muhammad Ali International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Louisville Muhammad Ali International Airport on Thursday, September 17, 2026.
Yes – the average flight time is 2 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Louisville Muhammad Ali International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Louisville is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Louisville Muhammad Ali International is Frontier Airlines.

Flying from Philadelphia to Louisville Muhammad Ali International Airport (SDF): What you need to know

  • Your travels get underway at Philadelphia's main airport, Philadelphia International Airport (PHL). Explore your options for reserving a flight from Philadelphia to Louisville Muhammad Ali International Airport (SDF) leaving from this terminal.

  • Book a direct Philadelphia to Louisville Muhammad Ali International Airport flight and you'll be in the air for an average of 2 hours 15 minutes.

  • Louisville (where Louisville Muhammad Ali International Airport is located) and Philadelphia share the UTC-5 timezone. Easily coordinate travel plans without worrying about time differences.

  • With 20 direct weekly flights between the two airports, Philadelphia International Airport (PHL) to Louisville Muhammad Ali International Airport (SDF) is the most popular route. American Airlines operates the earliest flight at 8:10am. If you're eager to make the most of your day before taking off, the latest flight from PHL to SDF is with American Airlines at 7:35pm.

  • Arrive at the airport on time so you don't miss your flight from Philadelphia to SDF. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • July is a busy time to fly out. If you're heading away then or around a major holiday like Fourth of July, get there even earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Go straight to your destination from Philadelphia International Airport (PHL). Nonstop flights from Philadelphia to Louisville Muhammad Ali International Airport (SDF) can be booked from here.

  • You can get away on a direct flight from Philadelphia to Louisville Muhammad Ali International Airport with American Airlines. This top carrier offers services from PHL.

  • The airline most travelers choose when flying between PHL and SDF is American Airlines.

  • With a dependable 83.4% of services arriving on schedule, American Airlines is the leading carrier for punctuality on this route.

  • Located around 18 kilometers from central Philadelphia, PHL can be reached in about 20 minutes by car, depending on traffic. The journey by public transport takes roughly 30 minutes.

  • Want a leisurely start to your travels? Stay near Philadelphia International Airport. Whether you're catching an early flight from Philadelphia to Louisville Muhammad Ali International Airport or want to avoid feeling rushed, these hotels have you covered:

  • Of the departures from Philadelphia International Airport, 77% touch down on time at their destination.

  • PHL is located at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • You can arrive at TTN from central Philadelphia in approximately 40 minutes by car, depending on traffic. The journey by public transport will take roughly 1 hour 35 minutes to cover the 48 kilometers or so.

  • Get your vacation started early with an extra night away from home. Before your Philadelphia to SDF flight, kick back in one of these hotels close to Trenton-Mercer Airport:

  • Trenton-Mercer Airport has an on-time performance rate of 76%. This figure highlights how frequently flights that leave from this airport arrive at their destination on time.

  • TTN is located at Scotch Road, Terminal Building.

About Louisville Muhammad Ali International Airport (SDF)

Getting from Louisville Muhammad Ali International Airport (SDF) to central Louisville

  • Central Louisville is around 16 kilometers from Louisville Muhammad Ali International Airport and takes about 20 minutes to reach by car. Look into how to get from the airport to the city, whether that's with a cab, car rental or ride-share.

  • Traveling on public transport typically takes 55 minutes.

How to find the cheapest flights from Philadelphia to Louisville Muhammad Ali International Airport (SDF)

  • Currently, AED 418 is the lowest price we've found for a one-way ticket from Philadelphia to Louisville Muhammad Ali International Airport. The cheapest price for a return flight is AED 1,054. Keep in mind fares may change due to availability at the time of booking.

  • To find cheap flights from Philadelphia to SDF, book in advance. Airlines tend to offer their most competitively priced fares when tickets are first released.

  • The 'Whole month' tool shows you the cheapest Philadelphia to Louisville Muhammad Ali International Airport tickets throughout the month. It's a good way to find a bargain if your travel plans are flexible.

  • You don't need to search every day to find out if fares have dropped when you set up a Price Alert. We'll notify you when a better deal comes up on plane tickets from Philadelphia to SDF.

  • Save money on your flight from Philadelphia to Louisville Muhammad Ali International Airport by using filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Philadelphia to Louisville Muhammad Ali International Airport (SDF)

  • December is the quietest month for flights from Philadelphia to Louisville Muhammad Ali International Airport (SDF), while June is the most popular. Pick the best time to go to Louisville based on whether you like a laid-back vibe or a lively atmosphere.

  • The warmest month in Louisville is July, with temperatures ranging between 17ºC (63ºF) and 33ºC (91ºF). Book your Philadelphia to SDF plane ticket then if you enjoy this type of weather.

  • January has temperatures of between -8ºC (18ºF) and 9ºC (48ºF). Look for cheap tickets from Philadelphia to Louisville Muhammad Ali International Airport around that time if you like traveling in cooler conditions.

More about Louisville

Explore more of the United States

  • Columbus is just one of the many cities in the United States waiting to be discovered after you've experienced Louisville. Around 306 kilometers away to the northeast, well-known attractions include Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Ohio Theater.

  • If you're interested in discovering another major stop in the United States, consider Indianapolis, roughly 177 kilometers north of Louisville. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.