San Jose to Portland

What the Data Says About SJC to PDX

The San Jose to Portland corridor (SJC → PDX) covers roughly 569 miles and is served by 22 carriers, based on Bureau of Transportation Statistics reporting. Across 13,062 flights in the dataset, this route posts a 86.4% on-time rate with an average delay of 57.7 minutes when flights run late. Over the most recent 24 months of BTS data, 4,170 flights were recorded on this pairing — 17 cancelled (0.4%) and 3 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 22 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 13,062 total flights analyzed, the 86.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 57.7-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, Jan 2025 posted the best performance on this corridor at 92% on-time, while Jul 2025 came in at 75% on-time — a 17-point gap between best and worst recent month. For travelers evaluating the SJC to PDX route, the combination of a 86.4% on-time rate, 57.7-minute average delay, 0.4% recent cancellation rate, and 22 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.