La Crosse, WI

What the Data Says About LSE

La Crosse, WI in La Crosse, Wisconsin handled 13,386 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87% on-time departure rate. Of those flights, 1,738 experienced delays, 130 were cancelled, and 6 were diverted. The cancellation rate works out to 0.97%, the diversion rate to 0.04%, and the average delay when departures run late is 85.2 minutes. These figures are the baseline for comparing LSE against other airports in the same state and nationally.

Breaking down what drives delays at LSE, Carrier leads the pack. Carrier accounts for 45.1% of total delay minutes, followed by Late Aircraft at 24.4% and NAS (National Aviation System) at 17.0%. Weather contributes 13.5% of delay minutes at this airport, while security holds the smallest share at 0.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, April runs the cleanest at LSE with a 97% on-time rate, while December is the roughest at 92% — a 5-point swing between best and worst month. Volume peaks in March, when average flights hit 250. The busiest route from LSE is to LSE (La Crosse), with 3,777 flights at a 83.1% on-time rate. Combine these numbers — 87% on-time, 85.2-minute average delay, 0.97% cancellation rate — and you have a concrete picture of departure reliability at La Crosse, WI.