Rock Springs, WY

What the Data Says About RKS

Rock Springs, WY in Rock Springs, Wyoming handled 6,604 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 86.4% on-time departure rate. Of those flights, 899 experienced delays, 75 were cancelled, and 10 were diverted. The cancellation rate works out to 1.14%, the diversion rate to 0.15%, and the average delay when departures run late is 134.0 minutes. These figures are the baseline for comparing RKS against other airports in the same state and nationally.

Breaking down what drives delays at RKS, Carrier leads the pack. Carrier accounts for 64.8% of total delay minutes, followed by Late Aircraft at 19.0% and NAS (National Aviation System) at 10.2%. Weather contributes 5.9% of delay minutes at this airport, while security holds the smallest share at 0.0%. 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 RKS with a 97.7% on-time rate, while July is the roughest at 92.7% — a 5-point swing between best and worst month. Volume peaks in July, when average flights hit 105. The busiest route from RKS is to RKS (Rock Springs), with 3,101 flights at a 83% on-time rate. Combine these numbers — 86.4% on-time, 134.0-minute average delay, 1.14% cancellation rate — and you have a concrete picture of departure reliability at Rock Springs, WY.