Charlotte to Birmingham

What the Data Says About CLT to BHM

The Charlotte to Birmingham corridor (CLT → BHM) covers roughly 350 miles and is served by 18 carriers, based on Bureau of Transportation Statistics reporting. Across 11,809 flights in the dataset, this route posts a 81% on-time rate with an average delay of 67.9 minutes when flights run late. Over the most recent 24 months of BTS data, 4,308 flights were recorded on this pairing — 73 cancelled (1.7%) and 6 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 18 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,809 total flights analyzed, the 81% on-time figure is statistically meaningful rather than a small-sample fluke. The 67.9-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 90% on-time, while Jul 2024 came in at 55% on-time — a 35-point gap between best and worst recent month. For travelers evaluating the CLT to BHM route, the combination of a 81% on-time rate, 67.9-minute average delay, 1.7% recent cancellation rate, and 18 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.