San Francisco to Pasco/Kennewick/Richland

What the Data Says About SFO to PSC

The San Francisco to Pasco/Kennewick/Richland corridor (SFO → PSC) covers roughly 620 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 2,406 flights in the dataset, this route posts a 82% on-time rate with an average delay of 81.1 minutes when flights run late. Over the most recent 24 months of BTS data, 1,274 flights were recorded on this pairing — 6 cancelled (0.5%) and 6 diverted (0.5%). Those baseline metrics tell you what to expect before you book.

Having 1 carrier on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,406 total flights analyzed, the 82% on-time figure is statistically meaningful rather than a small-sample fluke. The 81.1-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 2025 posted the best performance on this corridor at 97% on-time, while May 2025 came in at 72% on-time — a 25-point gap between best and worst recent month. For travelers evaluating the SFO to PSC route, the combination of a 82% on-time rate, 81.1-minute average delay, 0.5% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.