Lafayette, IN

What the Data Says About LAF

Lafayette, IN in Lafayette, Indiana handled 473 flights in the Bureau of Transportation Statistics dataset between 2025 and 2025, posting a 76.3% on-time departure rate. Of those flights, 112 experienced delays, 5 were cancelled, and 0 were diverted. The cancellation rate works out to 1.06%, the diversion rate to 0.00%, and the average delay when departures run late is 125.9 minutes. These figures are the baseline for comparing LAF against other airports in the same state and nationally.

Breaking down what drives delays at LAF, Late Aircraft leads the pack. Late Aircraft accounts for 51.7% of total delay minutes, followed by Carrier at 34.7% and NAS (National Aviation System) at 13.3%. Weather contributes 0.3% 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, September runs the cleanest at LAF with a 93.6% on-time rate, while December is the roughest at 88.5% — a 5-point swing between best and worst month. Volume peaks in December, when average flights hit 104. Combine these numbers — 76.3% on-time, 125.9-minute average delay, 1.06% cancellation rate — and you have a concrete picture of departure reliability at Lafayette, IN.