Birmingham to Miami

What the Data Says About BHM to MIA

The Birmingham to Miami corridor (BHM → MIA) covers roughly 661 miles and is served by 6 carriers, based on Bureau of Transportation Statistics reporting. Across 3,706 flights in the dataset, this route posts a 82% on-time rate with an average delay of 74.1 minutes when flights run late. Over the most recent 24 months of BTS data, 1,529 flights were recorded on this pairing — 23 cancelled (1.5%) and 4 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 6 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 3,706 total flights analyzed, the 82% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.1-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, Sep 2025 posted the best performance on this corridor at 91% on-time, while May 2024 came in at 61% on-time — a 29-point gap between best and worst recent month. For travelers evaluating the BHM to MIA route, the combination of a 82% on-time rate, 74.1-minute average delay, 1.5% recent cancellation rate, and 6 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.