Stillwater, OK

What the Data Says About SWO

Stillwater, OK in Stillwater, Oklahoma handled 8,044 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87.7% on-time departure rate. Of those flights, 991 experienced delays, 113 were cancelled, and 5 were diverted. The cancellation rate works out to 1.40%, the diversion rate to 0.06%, and the average delay when departures run late is 99.0 minutes. These figures are the baseline for comparing SWO against other airports in the same state and nationally.

Breaking down what drives delays at SWO, Carrier leads the pack. Carrier accounts for 55.1% of total delay minutes, followed by Late Aircraft at 18.8% and Weather at 14.1%. Weather contributes 14.1% of delay minutes at this airport, while security holds the smallest share at 0.4%. 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 SWO with a 96% on-time rate, while December is the roughest at 92.7% — a 3-point swing between best and worst month. Volume peaks in October, when average flights hit 123. The busiest route from SWO is to SWO (Stillwater), with 3,996 flights at a 86.4% on-time rate. Combine these numbers — 87.7% on-time, 99.0-minute average delay, 1.40% cancellation rate — and you have a concrete picture of departure reliability at Stillwater, OK.