
Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)
- Spirit Airlines
Spirit Airlines
- Frontier Airlines
Frontier Airlines
- JetBlue Airways
JetBlue Airways
- Delta
Delta
- American Airlines
American Airlines
- United
United
- Southwest Airlines
Southwest Airlines
Cheap Flights from Detroit to Philadelphia (DTW-PHL)
Prices were available within the past 7 days and start at $47 for one-way flights and $97 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Detroit (DTW) to Philadelphia (PHL)
August is typically the cheapest month to fly
Graph displaying average flight prices per month
Alternative airports near Philadelphia
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Detroit Metropolitan Wayne County |
Destination airport | Philadelphia Intl. |
Airlines serving | American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United |
Roundtrip price | $97 |
Distance | 452 mi |
Average flight time | 1 hour 37 mins |
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 August. 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 $47 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.
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Top Routes from Detroit
- Detroit to Newark Liberty Intl. Airport (DTW - EWR)
- Detroit to Phoenix (DTW - PHX)
- Detroit to Los Angeles (DTW - LAX)
- Detroit to Miami (DTW - MIA)
- Detroit to Tampa (DTW - TPA)
- Detroit to Punta Cana (DTW - PUJ)
- Detroit to New York (DTW - LGA)
- Detroit to Fort Lauderdale (DTW - FLL)
- Detroit to Boston (DTW - BOS)
- Detroit to Denver (DTW - DEN)
- Detroit to New York (DTW - JFK)
- Detroit to Seattle (DTW - SEA)
Top Routes to Philadelphia
- Chicago to Philadelphia (ORD - PHL)
- Phoenix to Philadelphia (PHX - PHL)
- Los Angeles to Philadelphia (LAX - PHL)
- Raleigh to Philadelphia (RDU - PHL)
- Tampa to Philadelphia (TPA - PHL)
- Miami to Philadelphia (MIA - PHL)
- Boston to Philadelphia (BOS - PHL)
- Fort Lauderdale to Philadelphia (FLL - PHL)
- Charlotte to Philadelphia (CLT - PHL)
- Minneapolis to Philadelphia (MSP - PHL)
- Denver to Philadelphia (DEN - PHL)
- Dallas to Philadelphia (DAL - PHL)
Top Routes from Detroit
- Spirit Airlines Detroit to Newark Liberty Intl. Airport
- Frontier Airlines Detroit to Phoenix
- Spirit Airlines Detroit to Los Angeles
- Spirit Airlines Detroit to Tampa
- Spirit Airlines Detroit to New York
- Spirit Airlines Detroit to Fort Lauderdale
- JetBlue Airways Detroit to Boston
- Frontier Airlines Detroit to Denver
- JetBlue Airways Detroit to New York
- Alaska Airlines Detroit to Seattle
Top Routes to Philadelphia
- Spirit Airlines Chicago to Philadelphia
- American Airlines Phoenix to Philadelphia
- JetBlue Airways Los Angeles to Philadelphia
- Frontier Airlines Raleigh to Philadelphia
- Frontier Airlines Tampa to Philadelphia
- JetBlue Airways Boston to Philadelphia
- JetBlue Airways Fort Lauderdale to Philadelphia
- Frontier Airlines Charlotte to Philadelphia
- Delta Minneapolis to Philadelphia
- Frontier Airlines Denver to Philadelphia
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Trenton
Nearby Airports
- Ann Arbor Municipal Airport (ARB)
- Coleman A. Young Municipal Airport (DET)
- Oakland County Intl. Airport (PTK)
- Toledo Express Airport (TOL)
- Bishop Intl. Airport (FNT)
- Capital Region Intl. Airport (LAN)
- Hopkins Intl. Airport (CLE)
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