How often are BOS to PHL flights on time?

Flights from Boston (BOS) to Philadelphia (PHL) arrive on time 84% of the time across 29,307 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 87% across 5,399 flights.

Route reliability

Flights from Boston to Philadelphia arrive on time 84% of the time across 29,307 flights. Here’s how each airline really performs.

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On-time rate

29,307 flights

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

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Nonstop vs. Connecting Flights: The Reliability Trade-off

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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 BOS–PHL flights on reliability, weather, and connection safety — not just price.

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