Key West to Philadelphia

What the Data Says About EYW to PHL

The Key West to Philadelphia corridor (EYW → PHL) covers roughly 1,121 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 2,084 flights in the dataset, this route posts a 71.2% on-time rate with an average delay of 113.2 minutes when flights run late. Over the most recent 24 months of BTS data, 979 flights were recorded on this pairing — 15 cancelled (1.5%) and 15 diverted (1.5%). 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 2,084 total flights analyzed, the 71.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 113.2-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 Mar 2025 came in at 64% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the EYW to PHL route, the combination of a 71.2% on-time rate, 113.2-minute average delay, 1.5% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.