Grand Rapids, MI

What the Data Says About GRR

Grand Rapids, MI in Grand Rapids, Michigan handled 195,613 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 81.9% on-time departure rate. Of those flights, 35,335 experienced delays, 2,500 were cancelled, and 187 were diverted. The cancellation rate works out to 1.28%, the diversion rate to 0.10%, and the average delay when departures run late is 79.3 minutes. These figures are the baseline for comparing GRR against other airports in the same state and nationally.

Breaking down what drives delays at GRR, Carrier leads the pack. Carrier accounts for 37.6% of total delay minutes, followed by Late Aircraft at 32.4% and NAS (National Aviation System) at 21.8%. Weather contributes 8.0% 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, October runs the cleanest at GRR with a 94.2% on-time rate, while December is the roughest at 90.2% — a 4-point swing between best and worst month. Volume peaks in March, when average flights hit 3,060. The busiest route from GRR is to GRR (Grand Rapids), with 14,929 flights at a 79.3% on-time rate. Combine these numbers — 81.9% on-time, 79.3-minute average delay, 1.28% cancellation rate — and you have a concrete picture of departure reliability at Grand Rapids, MI.