Flagstaff to Phoenix

What the Data Says About FLG to PHX

The Flagstaff to Phoenix corridor (FLG → PHX) covers roughly 119 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 7,313 flights in the dataset, this route posts a 86.4% on-time rate with an average delay of 109.6 minutes when flights run late. Over the most recent 24 months of BTS data, 2,687 flights were recorded on this pairing — 25 cancelled (0.9%) and 1 diverted (0.0%). 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 7,313 total flights analyzed, the 86.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 109.6-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, May 2024 posted the best performance on this corridor at 96% on-time, while Jun 2025 came in at 72% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the FLG to PHX route, the combination of a 86.4% on-time rate, 109.6-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.