Tucson to San Francisco

What the Data Says About TUS to SFO

The Tucson to San Francisco corridor (TUS → SFO) covers roughly 751 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 5,346 flights in the dataset, this route posts a 83.7% on-time rate with an average delay of 88.4 minutes when flights run late. Over the most recent 24 months of BTS data, 1,907 flights were recorded on this pairing — 18 cancelled (0.9%) and 2 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,346 total flights analyzed, the 83.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 88.4-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, Aug 2025 posted the best performance on this corridor at 95% on-time, while Mar 2024 came in at 48% on-time — a 47-point gap between best and worst recent month. For travelers evaluating the TUS to SFO route, the combination of a 83.7% on-time rate, 88.4-minute average delay, 0.9% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.