Denver to Pasco/Kennewick/Richland

What the Data Says About DEN to PSC

The Denver to Pasco/Kennewick/Richland corridor (DEN → PSC) covers roughly 852 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 4,225 flights in the dataset, this route posts a 80.7% on-time rate with an average delay of 70.7 minutes when flights run late. Over the most recent 24 months of BTS data, 1,463 flights were recorded on this pairing — 3 cancelled (0.2%) and 4 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 4,225 total flights analyzed, the 80.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 70.7-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, Dec 2024 posted the best performance on this corridor at 92% on-time, while Aug 2025 came in at 65% on-time — a 27-point gap between best and worst recent month. For travelers evaluating the DEN to PSC route, the combination of a 80.7% on-time rate, 70.7-minute average delay, 0.2% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.