Cheap flights from Louisville to Philadelphia from $111

The cheapest month to fly to Philadelphia from Louisville is in April. Flight prices, which tend to average around $518, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Philadelphia, with average flight prices from Louisville averaging around $519.

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 $523. 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 $940.

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 $580. 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 $997.

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

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 $577 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 $446 on momondo.

There are 4 cabin classes available to choose from on Louisville to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of November 2026, prices for Louisville to Philadelphia flights are approximately 11% cheaper when compared to flights at the same time last year.

Allegiant Air is the most popular carrier operating from Louisville Intl to Philadelphia

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Philadelphia from Louisville according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

The number of flights available between Louisville and Philadelphia is 5 per day as of November 2026. The most frequent departure time is 11:00AM, with 100% of daily flights leaving at noon.

As of November 2026, 37 flights take off from Louisville and land in Philadelphia each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.