Portland to Salt Lake City

What the Data Says About PDX to SLC

The Portland to Salt Lake City corridor (PDX → SLC) covers roughly 630 miles and is served by 13 carriers, based on Bureau of Transportation Statistics reporting. Across 14,015 flights in the dataset, this route posts a 89.8% on-time rate with an average delay of 74.4 minutes when flights run late. Over the most recent 24 months of BTS data, 4,893 flights were recorded on this pairing — 27 cancelled (0.6%) and 3 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 13 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 14,015 total flights analyzed, the 89.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.4-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 2024 posted the best performance on this corridor at 95% on-time, while Jul 2025 came in at 79% on-time — a 16-point gap between best and worst recent month. For travelers evaluating the PDX to SLC route, the combination of a 89.8% on-time rate, 74.4-minute average delay, 0.6% recent cancellation rate, and 13 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.