Salt Lake City to Pasco/Kennewick/Richland

What the Data Says About SLC to PSC

The Salt Lake City to Pasco/Kennewick/Richland corridor (SLC → PSC) covers roughly 521 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 6,337 flights in the dataset, this route posts a 88.8% on-time rate with an average delay of 73.5 minutes when flights run late. Over the most recent 24 months of BTS data, 2,242 flights were recorded on this pairing — 4 cancelled (0.2%) and 7 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 6,337 total flights analyzed, the 88.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 73.5-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, Mar 2024 posted the best performance on this corridor at 95% on-time, while Jan 2024 came in at 63% on-time — a 32-point gap between best and worst recent month. For travelers evaluating the SLC to PSC route, the combination of a 88.8% on-time rate, 73.5-minute average delay, 0.2% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.