Appleton, WI

What the Data Says About ATW

Appleton, WI in Appleton, Wisconsin handled 63,493 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 82.3% on-time departure rate. Of those flights, 11,237 experienced delays, 618 were cancelled, and 44 were diverted. The cancellation rate works out to 0.97%, the diversion rate to 0.07%, and the average delay when departures run late is 88.2 minutes. These figures are the baseline for comparing ATW against other airports in the same state and nationally.

Breaking down what drives delays at ATW, Carrier leads the pack. Carrier accounts for 51.1% of total delay minutes, followed by Late Aircraft at 18.9% and NAS (National Aviation System) at 17.4%. Weather contributes 12.7% 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, October runs the cleanest at ATW with a 93.8% on-time rate, while December is the roughest at 89.3% — a 5-point swing between best and worst month. Volume peaks in July, when average flights hit 956. The busiest route from ATW is to ORD (Chicago), with 7,968 flights at a 78.4% on-time rate. Combine these numbers — 82.3% on-time, 88.2-minute average delay, 0.97% cancellation rate — and you have a concrete picture of departure reliability at Appleton, WI.