Phoenix to Boston

What the Data Says About PHX to BOS

The Phoenix to Boston corridor (PHX → BOS) covers roughly 2,300 miles and is served by 9 carriers, based on Bureau of Transportation Statistics reporting. Across 9,925 flights in the dataset, this route posts a 80.6% on-time rate with an average delay of 80.1 minutes when flights run late. Over the most recent 24 months of BTS data, 4,224 flights were recorded on this pairing — 23 cancelled (0.5%) and 7 diverted (0.2%). 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 9,925 total flights analyzed, the 80.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 80.1-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, Nov 2024 posted the best performance on this corridor at 88% on-time, while Oct 2025 came in at 64% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the PHX to BOS route, the combination of a 80.6% on-time rate, 80.1-minute average delay, 0.5% recent cancellation rate, and 9 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.