Cheap Flights from Detroit (DET) to Philadelphia (PHL)

Popular airlines from Detroit, MI (DET-Coleman A. Young Municipal) to Philadelphia Intl. Airport (PHL)

Flights from Detroit (DET) to Philadelphia (PHL)
Origin airport
Coleman A. Young Municipal
Destination airport
Philadelphia Intl.
Distance
439 mi

Detroit to Philadelphia Flights

The cheapest times to fly from Detroit to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to Philadelphia are during the month of . You can find some of the cheapest flights from Detroit to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Philadelphia

Sunday is one of the best days to book for cheap flights from Detroit to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Detroit to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL) cost?
Grab a cheap one-way flight or cheap return flight from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from DET to PHL is , when there's less demand. Off-peak season is often when better flight deals are available between these airports.
Which airlines fly direct from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
There aren't any direct flights from Detroit, MI (DET-Coleman A. Young Municipal) to Philadelphia Intl. Airport (PHL). However, you'll find other airports that offer nonstop flights. Start your journey at Detroit Metropolitan Wayne County Airport (DTW) and travel straight to Philadelphia without any detours.
What is the cheapest airline that flies from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from DET to PHL. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
There are no daily nonstop flights from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from DET to PHL?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
To avoid potential delays on the Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL) route, aim to fly before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL) last-minute?
Holding off until just before your departure to book a ticket from DET to PHL generally means paying more. Although you may find some last-minute deals, there's no guarantee. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book a DET to PHL flight and hotel package?
You can save money by booking a DET to PHL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Coleman A. Young Municipal Airport (DET) to Philadelphia Intl. Airport (PHL)?
In most cases, you're able to reschedule or cancel your DET to PHL flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need more information, go to our Customer Service portal.

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*Available to One Key members.