Pasco/Kennewick/Richland, WA

What the Data Says About PSC

Pasco/Kennewick/Richland, WA in Pasco/Kennewick/Richland, Washington handled 63,750 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 86.9% on-time departure rate. Of those flights, 8,357 experienced delays, 382 were cancelled, and 73 were diverted. The cancellation rate works out to 0.60%, the diversion rate to 0.11%, and the average delay when departures run late is 78.0 minutes. These figures are the baseline for comparing PSC against other airports in the same state and nationally.

Breaking down what drives delays at PSC, Carrier leads the pack. Carrier accounts for 51.9% of total delay minutes, followed by Late Aircraft at 19.4% and Weather at 16.6%. Weather contributes 16.6% of delay minutes at this airport, while security holds the smallest share at 0.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, March runs the cleanest at PSC with a 96% on-time rate, while December is the roughest at 91.4% — a 5-point swing between best and worst month. Volume peaks in July, when average flights hit 979. The busiest route from PSC is to PSC (Pasco/Kennewick/Richland), with 13,307 flights at a 85.9% on-time rate. Combine these numbers — 86.9% on-time, 78.0-minute average delay, 0.60% cancellation rate — and you have a concrete picture of departure reliability at Pasco/Kennewick/Richland, WA.