The cheapest times to fly from SDF to PHL are
- January 1st to March 4th
- August 6th to November 18th
- December 3rd to December 16th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SDF to PHL is early to mid September. Prices can be as high as $683 for Sunday flights during early May, or as low as $258 for Tuesday flights around early to mid September.
When to Fly to Philadelphia
Flying from Louisville, KY (SDF) to Philadelphia, PA (PHL) will usually cost between $264 to $401 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $261. Due to high demand the most expensive time to fly is early May, with an average price of $400. Planning your trip to low-cost times can easily save you $139 on economy flights and even more on first-class flights. Generally, any price below $328 can be considered a good price for a round-trip SDF to PHL flight.
See below for a graph of average weekly prices for the SDF to PHL route. All prices are for round-trip tickets in USD.
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Compared to other flights, the SDF to PHL flight is much cheaper than the average and costs much less than the average flight leaving from Louisville. The average price per mile (for a direct flight) is $0.35, which is in the normal range for a flight.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $43 (12%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $308. Return trip prices are from the PHL to SDF flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
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Return Trip Prices by Day
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Nonstop Flights and Layovers
Travelers looking to fly from SDF to PHL can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 1 minutes may be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from SDF to PHL while comparing.
- 95 miles (153 km) away from PHL
- Usually 36.79% less expensive than PHL
- Nonstop flights available
- 115 miles (185 km) away from PHL
- Usually 25.80% less expensive than PHL
- 1-layover flights available
- 94 miles (151 km) away from PHL
- Usually 24.58% less expensive than PHL
- 1-layover flights available
- 80 miles (129 km) away from PHL
- Usually 23.51% less expensive than PHL
- Nonstop flights available
- 130 miles (209 km) away from PHL
- Usually 24.73% less expensive than PHL
- 1-layover flights available
- 104 miles (167 km) away from PHL
- Usually 22.44% less expensive than PHL
- 1-layover flights available
Flight Questions Answered
Still have questions about flying from SDF to PHL? We’ve got answers.
Which airlines fly this route?
You can find 6 major airlines flying this route most often: American, Delta, Frontier, Qantas, Southwest, United, and potentially more during busy seasons.
How far away is it from Philadelphia International Airport to Louisville International-Standiford Field Airport?
The distance between the two airports is roughly 575 miles or 925 kilometers.
How long does it take to fly from SDF to PHL?
The real-world flight time for a nonstop SDF to PHL flight is about 2 hour 1 minutes.
How many flights go between Louisville, KY and Philadelphia, PA?
It depends on the day of the week and the date, but a typical day might have around 56 available flights from SDF to PHL.
Airport Location Info
Departing Airport
Origination code | SDF |
Origination airport name | Louisville International-Standiford Field Airport |
City | Louisville, KY |
Country | the United States |
Latitude | 38.2 |
Longitude | -85.7 |
Return Airport
Destination code | PHL |
Destination airport name | Philadelphia International Airport |
City | Philadelphia, PA |
Country | the United States |
Latitude | 39.9 |
Longitude | -75.2 |
Late and Early Flight Data
Flights from SDF to PHL tend to depart late far less frequently than the average flight. According to our recently updated data, 21% of flights departed 5 or more minutes late, and 38% of flights left 5 or more minutes early. On average you can expect to leave PHL heading for SDF about 4 minutes late. This does not significantly impact arrival time, as the average landing time in Philadelphia, PA is about 1 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Republic: 4 minutes late
- Some airlines not reporting
Other Resources
Flights to PHL
Flights from PHL
Popular Flights
Flights to SDF
Flights from SDF
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.