Chicago to Lexington

What the Data Says About ORD to LEX

The Chicago to Lexington corridor (ORD → LEX) covers roughly 323 miles and is served by 17 carriers, based on Bureau of Transportation Statistics reporting. Across 6,955 flights in the dataset, this route posts a 79.8% on-time rate with an average delay of 73.1 minutes when flights run late. Over the most recent 24 months of BTS data, 3,151 flights were recorded on this pairing — 46 cancelled (1.5%) and 8 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 17 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 6,955 total flights analyzed, the 79.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 73.1-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 2024 posted the best performance on this corridor at 94% on-time, while Jul 2025 came in at 57% on-time — a 37-point gap between best and worst recent month. For travelers evaluating the ORD to LEX route, the combination of a 79.8% on-time rate, 73.1-minute average delay, 1.5% recent cancellation rate, and 17 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.