Tucson to Seattle

What the Data Says About TUS to SEA

The Tucson to Seattle corridor (TUS → SEA) covers roughly 1,216 miles and is served by 11 carriers, based on Bureau of Transportation Statistics reporting. Across 5,851 flights in the dataset, this route posts a 83.8% on-time rate with an average delay of 71.2 minutes when flights run late. Over the most recent 24 months of BTS data, 2,102 flights were recorded on this pairing — 9 cancelled (0.4%) and 2 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 11 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,851 total flights analyzed, the 83.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 71.2-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, Jul 2025 posted the best performance on this corridor at 95% on-time, while Jun 2024 came in at 61% on-time — a 34-point gap between best and worst recent month. For travelers evaluating the TUS to SEA route, the combination of a 83.8% on-time rate, 71.2-minute average delay, 0.4% recent cancellation rate, and 11 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.