Kalamazoo to Chicago

What the Data Says About AZO to ORD

The Kalamazoo to Chicago corridor (AZO → ORD) covers roughly 122 miles and is served by 6 carriers, based on Bureau of Transportation Statistics reporting. Across 2,523 flights in the dataset, this route posts a 86.7% on-time rate with an average delay of 81.7 minutes when flights run late. Over the most recent 24 months of BTS data, 1,619 flights were recorded on this pairing — 60 cancelled (3.7%) and 1 diverted (0.1%). 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 2,523 total flights analyzed, the 86.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 81.7-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, Jun 2022 posted the best performance on this corridor at 93% on-time, while Dec 2025 came in at 70% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the AZO to ORD route, the combination of a 86.7% on-time rate, 81.7-minute average delay, 3.7% recent cancellation rate, and 6 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.