Chicago to Kalamazoo

What the Data Says About ORD to AZO

The Chicago to Kalamazoo corridor (ORD → AZO) covers roughly 122 miles and is served by 6 carriers, based on Bureau of Transportation Statistics reporting. Across 2,524 flights in the dataset, this route posts a 83.6% on-time rate with an average delay of 65.3 minutes when flights run late. Over the most recent 24 months of BTS data, 1,620 flights were recorded on this pairing — 58 cancelled (3.6%) and 3 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 6 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,524 total flights analyzed, the 83.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 65.3-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Oct 2022 posted the best performance on this corridor at 98% on-time, while Jul 2025 came in at 63% on-time — a 36-point gap between best and worst recent month. For travelers evaluating the ORD to AZO route, the combination of a 83.6% on-time rate, 65.3-minute average delay, 3.6% recent cancellation rate, and 6 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.