Chicago to Appleton

What the Data Says About ORD to ATW

The Chicago to Appleton corridor (ORD → ATW) covers roughly 160 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 7,968 flights in the dataset, this route posts a 77.8% on-time rate with an average delay of 77.6 minutes when flights run late. Over the most recent 24 months of BTS data, 4,213 flights were recorded on this pairing — 92 cancelled (2.2%) and 13 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 4 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 7,968 total flights analyzed, the 77.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 77.6-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, Sep 2025 posted the best performance on this corridor at 86% on-time, while Dec 2025 came in at 53% on-time — a 33-point gap between best and worst recent month. For travelers evaluating the ORD to ATW route, the combination of a 77.8% on-time rate, 77.6-minute average delay, 2.2% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.