Portland to Spokane

What the Data Says About PDX to GEG

The Portland to Spokane corridor (PDX → GEG) covers roughly 279 miles and is served by 8 carriers, based on Bureau of Transportation Statistics reporting. Across 3,906 flights in the dataset, this route posts a 87.4% on-time rate with an average delay of 58.9 minutes when flights run late. Over the most recent 24 months of BTS data, 1,405 flights were recorded on this pairing — 12 cancelled (0.9%) and 3 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 8 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 3,906 total flights analyzed, the 87.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 58.9-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, Apr 2024 posted the best performance on this corridor at 92% on-time, while May 2025 came in at 74% on-time — a 17-point gap between best and worst recent month. For travelers evaluating the PDX to GEG route, the combination of a 87.4% on-time rate, 58.9-minute average delay, 0.9% recent cancellation rate, and 8 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.