Salt Lake City to Phoenix

What the Data Says About SLC to PHX

The Salt Lake City to Phoenix corridor (SLC → PHX) covers roughly 507 miles and is served by 38 carriers, based on Bureau of Transportation Statistics reporting. Across 30,395 flights in the dataset, this route posts a 83.2% on-time rate with an average delay of 73.4 minutes when flights run late. Over the most recent 24 months of BTS data, 11,616 flights were recorded on this pairing — 54 cancelled (0.5%) and 15 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 38 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 30,395 total flights analyzed, the 83.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 73.4-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, May 2025 posted the best performance on this corridor at 90% on-time, while Jul 2024 came in at 76% on-time — a 14-point gap between best and worst recent month. For travelers evaluating the SLC to PHX route, the combination of a 83.2% on-time rate, 73.4-minute average delay, 0.5% recent cancellation rate, and 38 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.