Key West, FL

What the Data Says About EYW

Key West, FL in Key West, Florida handled 93,161 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 79% on-time departure rate. Of those flights, 19,574 experienced delays, 1,275 were cancelled, and 424 were diverted. The cancellation rate works out to 1.37%, the diversion rate to 0.46%, and the average delay when departures run late is 78.0 minutes. These figures are the baseline for comparing EYW against other airports in the same state and nationally.

Breaking down what drives delays at EYW, Late Aircraft leads the pack. Late Aircraft accounts for 47.1% of total delay minutes, followed by Carrier at 29.5% and NAS (National Aviation System) at 16.0%. Weather contributes 7.2% of delay minutes at this airport, while security holds the smallest share at 0.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, September runs the cleanest at EYW with a 93.2% on-time rate, while June is the roughest at 85.3% — a 8-point swing between best and worst month. Volume peaks in March, when average flights hit 1,696. The busiest route from EYW is to EYW (Key West), with 9,312 flights at a 83.9% on-time rate. Combine these numbers — 79% on-time, 78.0-minute average delay, 1.37% cancellation rate — and you have a concrete picture of departure reliability at Key West, FL.