St. George, UT

What the Data Says About SGU

St. George, UT in St. George, Utah handled 39,026 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 88% on-time departure rate. Of those flights, 4,697 experienced delays, 117 were cancelled, and 47 were diverted. The cancellation rate works out to 0.30%, the diversion rate to 0.12%, and the average delay when departures run late is 86.6 minutes. These figures are the baseline for comparing SGU against other airports in the same state and nationally.

Breaking down what drives delays at SGU, Carrier leads the pack. Carrier accounts for 58.2% of total delay minutes, followed by Late Aircraft at 21.5% and Weather at 10.7%. Weather contributes 10.7% of delay minutes at this airport, while security holds the smallest share at 0.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, September runs the cleanest at SGU with a 95.8% on-time rate, while July is the roughest at 92.2% — a 4-point swing between best and worst month. Volume peaks in October, when average flights hit 662. The busiest route from SGU is to SLC (Salt Lake City), with 8,487 flights at a 92.6% on-time rate. Combine these numbers — 88% on-time, 86.6-minute average delay, 0.30% cancellation rate — and you have a concrete picture of departure reliability at St. George, UT.