Burlington, VT

What the Data Says About BTV

Burlington, VT in Burlington, Vermont handled 79,685 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 83.4% on-time departure rate. Of those flights, 13,216 experienced delays, 1,313 were cancelled, and 104 were diverted. The cancellation rate works out to 1.65%, the diversion rate to 0.13%, and the average delay when departures run late is 88.9 minutes. These figures are the baseline for comparing BTV against other airports in the same state and nationally.

Breaking down what drives delays at BTV, Carrier leads the pack. Carrier accounts for 35.0% of total delay minutes, followed by Late Aircraft at 32.7% and NAS (National Aviation System) at 21.7%. Weather contributes 10.5% 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, November runs the cleanest at BTV with a 94.6% on-time rate, while July is the roughest at 89.9% — a 5-point swing between best and worst month. Volume peaks in July, when average flights hit 1,337. The busiest route from BTV is to DCA (Washington), with 5,806 flights at a 77.4% on-time rate. Combine these numbers — 83.4% on-time, 88.9-minute average delay, 1.65% cancellation rate — and you have a concrete picture of departure reliability at Burlington, VT.