Salt Lake City to Great Falls

What the Data Says About SLC to GTF

The Salt Lake City to Great Falls corridor (SLC → GTF) covers roughly 463 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 5,872 flights in the dataset, this route posts a 92.6% on-time rate with an average delay of 70.1 minutes when flights run late. Over the most recent 24 months of BTS data, 2,086 flights were recorded on this pairing — 5 cancelled (0.2%) and 3 diverted (0.1%). 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 5,872 total flights analyzed, the 92.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 70.1-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, Oct 2025 posted the best performance on this corridor at 99% on-time, while Jan 2024 came in at 82% on-time — a 17-point gap between best and worst recent month. For travelers evaluating the SLC to GTF route, the combination of a 92.6% on-time rate, 70.1-minute average delay, 0.2% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.