San Jose to Phoenix

What the Data Says About SJC to PHX

The San Jose to Phoenix corridor (SJC → PHX) covers roughly 621 miles and is served by 33 carriers, based on Bureau of Transportation Statistics reporting. Across 16,551 flights in the dataset, this route posts a 86.3% on-time rate with an average delay of 68.1 minutes when flights run late. Over the most recent 24 months of BTS data, 6,408 flights were recorded on this pairing — 19 cancelled (0.3%) and 8 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 33 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 16,551 total flights analyzed, the 86.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 68.1-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 91% on-time, while Oct 2025 came in at 76% on-time — a 15-point gap between best and worst recent month. For travelers evaluating the SJC to PHX route, the combination of a 86.3% on-time rate, 68.1-minute average delay, 0.3% recent cancellation rate, and 33 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.