San Juan to Philadelphia

What the Data Says About SJU to PHL

The San Juan to Philadelphia corridor (SJU → PHL) covers roughly 1,576 miles and is served by 12 carriers, based on Bureau of Transportation Statistics reporting. Across 9,431 flights in the dataset, this route posts a 74.2% on-time rate with an average delay of 94.6 minutes when flights run late. Over the most recent 24 months of BTS data, 3,078 flights were recorded on this pairing — 54 cancelled (1.8%) and 18 diverted (0.6%). Those baseline metrics tell you what to expect before you book.

Having 12 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 9,431 total flights analyzed, the 74.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 94.6-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, Sep 2024 posted the best performance on this corridor at 88% on-time, while May 2024 came in at 41% on-time — a 47-point gap between best and worst recent month. For travelers evaluating the SJU to PHL route, the combination of a 74.2% on-time rate, 94.6-minute average delay, 1.8% recent cancellation rate, and 12 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.