Charlotte Amalie, VI

What the Data Says About STT

Charlotte Amalie, VI in Charlotte Amalie, U.S. Virgin Islands handled 61,916 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 81.5% on-time departure rate. Of those flights, 11,438 experienced delays, 451 were cancelled, and 737 were diverted. The cancellation rate works out to 0.73%, the diversion rate to 1.19%, and the average delay when departures run late is 79.9 minutes. These figures are the baseline for comparing STT against other airports in the same state and nationally.

Breaking down what drives delays at STT, Late Aircraft leads the pack. Late Aircraft accounts for 50.0% of total delay minutes, followed by Carrier at 31.1% and NAS (National Aviation System) at 16.1%. Weather contributes 2.5% of delay minutes at this airport, while security holds the smallest share at 0.3%. 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 STT with a 92.7% on-time rate, while July is the roughest at 88.4% — a 4-point swing between best and worst month. Volume peaks in March, when average flights hit 1,128. The busiest route from STT is to STT (Charlotte Amalie), with 5,392 flights at a 82.8% on-time rate. Combine these numbers — 81.5% on-time, 79.9-minute average delay, 0.73% cancellation rate — and you have a concrete picture of departure reliability at Charlotte Amalie, VI.