Philadelphia to Key West

What the Data Says About PHL to EYW

The Philadelphia to Key West corridor (PHL → EYW) covers roughly 1,121 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 2,052 flights in the dataset, this route posts a 83% on-time rate with an average delay of 72.0 minutes when flights run late. Over the most recent 24 months of BTS data, 978 flights were recorded on this pairing — 10 cancelled (1.0%) and 11 diverted (1.1%). Those baseline metrics tell you what to expect before you book.

Having 4 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,052 total flights analyzed, the 83% on-time figure is statistically meaningful rather than a small-sample fluke. The 72.0-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Oct 2024 posted the best performance on this corridor at 94% on-time, while Dec 2025 came in at 73% on-time — a 22-point gap between best and worst recent month. For travelers evaluating the PHL to EYW route, the combination of a 83% on-time rate, 72.0-minute average delay, 1.0% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.