Kalamazoo, MI

What the Data Says About AZO

Kalamazoo, MI in Kalamazoo, Michigan handled 17,506 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87.1% on-time departure rate. Of those flights, 2,263 experienced delays, 212 were cancelled, and 5 were diverted. The cancellation rate works out to 1.21%, the diversion rate to 0.03%, and the average delay when departures run late is 93.2 minutes. These figures are the baseline for comparing AZO against other airports in the same state and nationally.

Breaking down what drives delays at AZO, Carrier leads the pack. Carrier accounts for 51.9% of total delay minutes, followed by Late Aircraft at 23.0% and NAS (National Aviation System) at 13.0%. Weather contributes 12.2% 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, April runs the cleanest at AZO with a 97.1% on-time rate, while December is the roughest at 92% — a 5-point swing between best and worst month. Volume peaks in January, when average flights hit 277. The busiest route from AZO is to AZO (Kalamazoo), with 5,926 flights at a 86.1% on-time rate. Combine these numbers — 87.1% on-time, 93.2-minute average delay, 1.21% cancellation rate — and you have a concrete picture of departure reliability at Kalamazoo, MI.