Los Angeles to Chicago

What the Data Says About LAX to ORD

The Los Angeles to Chicago corridor (LAX → ORD) covers roughly 1,744 miles and is served by 15 carriers, based on Bureau of Transportation Statistics reporting. Across 36,987 flights in the dataset, this route posts a 84.3% on-time rate with an average delay of 83.8 minutes when flights run late. Over the most recent 24 months of BTS data, 13,730 flights were recorded on this pairing — 179 cancelled (1.3%) and 53 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 15 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 36,987 total flights analyzed, the 84.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 83.8-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, Feb 2024 posted the best performance on this corridor at 89% on-time, while Nov 2025 came in at 72% on-time — a 17-point gap between best and worst recent month. For travelers evaluating the LAX to ORD route, the combination of a 84.3% on-time rate, 83.8-minute average delay, 1.3% recent cancellation rate, and 15 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.