Boston to Fort Lauderdale

What the Data Says About BOS to FLL

The Boston to Fort Lauderdale corridor (BOS → FLL) covers roughly 1,237 miles and is served by 20 carriers, based on Bureau of Transportation Statistics reporting. Across 18,085 flights in the dataset, this route posts a 73.2% on-time rate with an average delay of 76.1 minutes when flights run late. Over the most recent 24 months of BTS data, 6,655 flights were recorded on this pairing — 109 cancelled (1.6%) and 24 diverted (0.4%). 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 18,085 total flights analyzed, the 73.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 76.1-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, Nov 2024 posted the best performance on this corridor at 85% on-time, while Dec 2025 came in at 54% on-time — a 31-point gap between best and worst recent month. For travelers evaluating the BOS to FLL route, the combination of a 73.2% on-time rate, 76.1-minute average delay, 1.6% recent cancellation rate, and 20 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.