Cheap flights from Detroit to Philadelphia from $48

The cheapest month to fly to Philadelphia from Detroit is in February. Flight prices, which tend to average around $179, 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 Detroit averaging around $229.

The cheapest day to depart from Detroit to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $346. On the other hand, Monday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $770.

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Detroit to Philadelphia in the evening for as low as $234. 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 $856.

Fly from Detroit Metropolitan Wayne County to Philadelphia for the best Detroit - Philadelphia flight prices

You are more likely to see cheaper flights to Philadelphia from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $273 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Detroit for as low as $194 on momondo.

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

Frontier and Spirit Airlines are the most popular carriers operating from Detroit to Philadelphia

Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to Philadelphia from Detroit according to our data. Spirit Airlines is the first choice among our users, with 45% 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.

As of February 2026, there are 20 flights per day flying from Detroit to Philadelphia. The most common time of day flights depart is 9:00PM, with 40% of flights taking off at noon.

As of February 2026, 144 flights take off from Detroit and land in Philadelphia each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.