Williamsport, PA

What the Data Says About IPT

Williamsport, PA in Williamsport, Pennsylvania handled 142 flights in the Bureau of Transportation Statistics dataset between 2020 and 2020, posting a 90.1% on-time departure rate. Of those flights, 14 experienced delays, 0 were cancelled, and 0 were diverted. The cancellation rate works out to 0.00%, the diversion rate to 0.00%, and the average delay when departures run late is 192.6 minutes. These figures are the baseline for comparing IPT against other airports in the same state and nationally.

Breaking down what drives delays at IPT, Carrier leads the pack. Carrier accounts for 96.1% of total delay minutes, followed by NAS (National Aviation System) at 3.9% and Late Aircraft at 0.0%. Weather contributes 0.0% of delay minutes at this airport, while security holds the smallest share at 0.0%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, August runs the cleanest at IPT with a 96.4% on-time rate, while October is the roughest at 81.8% — a 15-point swing between best and worst month. Volume peaks in September, when average flights hit 76. Combine these numbers — 90.1% on-time, 192.6-minute average delay, 0.00% cancellation rate — and you have a concrete picture of departure reliability at Williamsport, PA.