Sacramento to Salt Lake City

What the Data Says About SMF to SLC

The Sacramento to Salt Lake City corridor (SMF → SLC) covers roughly 532 miles and is served by 11 carriers, based on Bureau of Transportation Statistics reporting. Across 11,456 flights in the dataset, this route posts a 88.5% on-time rate with an average delay of 79.0 minutes when flights run late. Over the most recent 24 months of BTS data, 4,028 flights were recorded on this pairing — 15 cancelled (0.4%) and 4 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 11,456 total flights analyzed, the 88.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 79.0-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, Oct 2024 posted the best performance on this corridor at 97% on-time, while Jan 2024 came in at 81% on-time — a 15-point gap between best and worst recent month. For travelers evaluating the SMF to SLC route, the combination of a 88.5% on-time rate, 79.0-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.