Fort Lauderdale, FL

What the Data Says About FLL

Fort Lauderdale, FL in Fort Lauderdale, Florida handled 1,010,982 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 76.4% on-time departure rate. Of those flights, 238,106 experienced delays, 11,984 were cancelled, and 1,385 were diverted. The cancellation rate works out to 1.19%, the diversion rate to 0.14%, and the average delay when departures run late is 74.0 minutes. These figures are the baseline for comparing FLL against other airports in the same state and nationally.

Breaking down what drives delays at FLL, Late Aircraft leads the pack. Late Aircraft accounts for 36.0% of total delay minutes, followed by Carrier at 33.3% and NAS (National Aviation System) at 24.2%. Weather contributes 5.2% of delay minutes at this airport, while security holds the smallest share at 1.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, October runs the cleanest at FLL with a 90.5% on-time rate, while July is the roughest at 84.6% — a 6-point swing between best and worst month. Volume peaks in March, when average flights hit 17,464. The busiest route from FLL is to ATL (Atlanta), with 42,458 flights at a 77.5% on-time rate. Combine these numbers — 76.4% on-time, 74.0-minute average delay, 1.19% cancellation rate — and you have a concrete picture of departure reliability at Fort Lauderdale, FL.