Miami to Key West

What the Data Says About MIA to EYW

The Miami to Key West corridor (MIA → EYW) covers roughly 126 miles and is served by 8 carriers, based on Bureau of Transportation Statistics reporting. Across 7,149 flights in the dataset, this route posts a 85.7% on-time rate with an average delay of 56.0 minutes when flights run late. Over the most recent 24 months of BTS data, 2,586 flights were recorded on this pairing — 49 cancelled (1.9%) and 4 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 8 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 7,149 total flights analyzed, the 85.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 56.0-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, Oct 2025 posted the best performance on this corridor at 93% on-time, while Jun 2024 came in at 69% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the MIA to EYW route, the combination of a 85.7% on-time rate, 56.0-minute average delay, 1.9% recent cancellation rate, and 8 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.