Sacramento to Denver

What the Data Says About SMF to DEN

The Sacramento to Denver corridor (SMF → DEN) covers roughly 909 miles and is served by 15 carriers, based on Bureau of Transportation Statistics reporting. Across 21,137 flights in the dataset, this route posts a 84.5% on-time rate with an average delay of 62.0 minutes when flights run late. Over the most recent 24 months of BTS data, 7,915 flights were recorded on this pairing — 56 cancelled (0.7%) and 30 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 15 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 21,137 total flights analyzed, the 84.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 62.0-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 95% on-time, while Jul 2025 came in at 71% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the SMF to DEN route, the combination of a 84.5% on-time rate, 62.0-minute average delay, 0.7% recent cancellation rate, and 15 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.