How often are DTW to PHL flights on time?

Flights from Detroit (DTW) to Philadelphia (PHL) arrive on time 88% of the time across 18,272 flights of official data.

Which airline is most reliable on the DTW to PHL route?

Spirit Airlines has the best on-time record on this route at 91% across 1,215 flights.

Route reliability

Flights from Detroit to Philadelphia arrive on time 88% of the time across 18,272 flights. Here’s how each airline really performs.

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On-time rate

18,272 flights

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg PHL → DTW.

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Do Morning Flights Really Have Fewer Delays?

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Are Some Airlines Really More Reliable Than Others?

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Score real DTW–PHL flights on reliability, weather, and connection safety — not just price.

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