New York to Miami

What the Data Says About JFK to MIA

The New York to Miami corridor (JFK → MIA) covers roughly 1,089 miles and is served by 16 carriers, based on Bureau of Transportation Statistics reporting. Across 30,546 flights in the dataset, this route posts a 75.6% on-time rate with an average delay of 78.4 minutes when flights run late. Over the most recent 24 months of BTS data, 10,507 flights were recorded on this pairing — 192 cancelled (1.8%) and 39 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 16 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 30,546 total flights analyzed, the 75.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 78.4-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 2024 posted the best performance on this corridor at 89% on-time, while Jun 2025 came in at 64% on-time — a 25-point gap between best and worst recent month. For travelers evaluating the JFK to MIA route, the combination of a 75.6% on-time rate, 78.4-minute average delay, 1.8% recent cancellation rate, and 16 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.