Pittsburgh, PA

What the Data Says About PIT

Pittsburgh, PA in Pittsburgh, Pennsylvania handled 462,554 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 83.3% on-time departure rate. Of those flights, 77,031 experienced delays, 5,444 were cancelled, and 420 were diverted. The cancellation rate works out to 1.18%, the diversion rate to 0.09%, and the average delay when departures run late is 73.9 minutes. These figures are the baseline for comparing PIT against other airports in the same state and nationally.

Breaking down what drives delays at PIT, Late Aircraft leads the pack. Late Aircraft accounts for 36.4% of total delay minutes, followed by Carrier at 30.2% and NAS (National Aviation System) at 28.1%. Weather contributes 5.1% 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 PIT with a 94.5% on-time rate, while July is the roughest at 90% — a 5-point swing between best and worst month. Volume peaks in March, when average flights hit 6,907. The busiest route from PIT is to PIT (Pittsburgh), with 16,934 flights at a 84.9% on-time rate. Combine these numbers — 83.3% on-time, 73.9-minute average delay, 1.18% cancellation rate — and you have a concrete picture of departure reliability at Pittsburgh, PA.