Charlotte to St. Louis

What the Data Says About CLT to STL

The Charlotte to St. Louis corridor (CLT → STL) covers roughly 575 miles and is served by 21 carriers, based on Bureau of Transportation Statistics reporting. Across 11,798 flights in the dataset, this route posts a 80.5% on-time rate with an average delay of 67.7 minutes when flights run late. Over the most recent 24 months of BTS data, 4,008 flights were recorded on this pairing — 43 cancelled (1.1%) and 7 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 21 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,798 total flights analyzed, the 80.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 67.7-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, Feb 2024 posted the best performance on this corridor at 87% on-time, while May 2024 came in at 52% on-time — a 35-point gap between best and worst recent month. For travelers evaluating the CLT to STL route, the combination of a 80.5% on-time rate, 67.7-minute average delay, 1.1% recent cancellation rate, and 21 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.