St. Louis to Charlotte

What the Data Says About STL to CLT

The St. Louis to Charlotte corridor (STL → CLT) covers roughly 575 miles and is served by 20 carriers, based on Bureau of Transportation Statistics reporting. Across 11,793 flights in the dataset, this route posts a 84.7% on-time rate with an average delay of 100.2 minutes when flights run late. Over the most recent 24 months of BTS data, 4,005 flights were recorded on this pairing — 42 cancelled (1.0%) and 5 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 20 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,793 total flights analyzed, the 84.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 100.2-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 90% on-time, while Jul 2024 came in at 60% on-time — a 29-point gap between best and worst recent month. For travelers evaluating the STL to CLT route, the combination of a 84.7% on-time rate, 100.2-minute average delay, 1.0% recent cancellation rate, and 20 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.