Portland to Denver

What the Data Says About PDX to DEN

The Portland to Denver corridor (PDX → DEN) covers roughly 991 miles and is served by 27 carriers, based on Bureau of Transportation Statistics reporting. Across 23,123 flights in the dataset, this route posts a 84.1% on-time rate with an average delay of 63.8 minutes when flights run late. Over the most recent 24 months of BTS data, 8,950 flights were recorded on this pairing — 75 cancelled (0.8%) and 36 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 27 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 23,123 total flights analyzed, the 84.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 63.8-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 2025 posted the best performance on this corridor at 92% on-time, while Jul 2025 came in at 65% on-time — a 27-point gap between best and worst recent month. For travelers evaluating the PDX to DEN route, the combination of a 84.1% on-time rate, 63.8-minute average delay, 0.8% recent cancellation rate, and 27 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.