Spokane to Phoenix

What the Data Says About GEG to PHX

The Spokane to Phoenix corridor (GEG → PHX) covers roughly 1,020 miles and is served by 9 carriers, based on Bureau of Transportation Statistics reporting. Across 5,733 flights in the dataset, this route posts a 84.5% on-time rate with an average delay of 98.9 minutes when flights run late. Over the most recent 24 months of BTS data, 2,361 flights were recorded on this pairing — 4 cancelled (0.2%) and 1 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 9 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,733 total flights analyzed, the 84.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 98.9-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 97% on-time, while Dec 2024 came in at 79% on-time — a 18-point gap between best and worst recent month. For travelers evaluating the GEG to PHX route, the combination of a 84.5% on-time rate, 98.9-minute average delay, 0.2% recent cancellation rate, and 9 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.