Bangor, ME

What the Data Says About BGR

Bangor, ME in Bangor, Maine handled 47,532 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 83% on-time departure rate. Of those flights, 8,098 experienced delays, 919 were cancelled, and 67 were diverted. The cancellation rate works out to 1.93%, the diversion rate to 0.14%, and the average delay when departures run late is 85.0 minutes. These figures are the baseline for comparing BGR against other airports in the same state and nationally.

Breaking down what drives delays at BGR, Late Aircraft leads the pack. Late Aircraft accounts for 36.5% of total delay minutes, followed by NAS (National Aviation System) at 30.0% and Carrier at 27.4%. Weather contributes 5.8% 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, May runs the cleanest at BGR with a 94.5% on-time rate, while July is the roughest at 89% — a 6-point swing between best and worst month. Volume peaks in August, when average flights hit 1,046. The busiest route from BGR is to DCA (Washington), with 4,963 flights at a 79.7% on-time rate. Combine these numbers — 83% on-time, 85.0-minute average delay, 1.93% cancellation rate — and you have a concrete picture of departure reliability at Bangor, ME.