Austin, TX

What the Data Says About AUS

Austin, TX in Austin, Texas handled 909,441 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 79.3% on-time departure rate. Of those flights, 188,677 experienced delays, 9,363 were cancelled, and 935 were diverted. The cancellation rate works out to 1.03%, the diversion rate to 0.10%, and the average delay when departures run late is 70.1 minutes. These figures are the baseline for comparing AUS against other airports in the same state and nationally.

Breaking down what drives delays at AUS, Late Aircraft leads the pack. Late Aircraft accounts for 45.0% of total delay minutes, followed by Carrier at 33.8% and NAS (National Aviation System) at 16.3%. Weather contributes 4.6% 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, September runs the cleanest at AUS with a 92.1% on-time rate, while June is the roughest at 86.6% — a 6-point swing between best and worst month. Volume peaks in October, when average flights hit 13,549. The busiest route from AUS is to DFW (Dallas/Fort Worth), with 25,695 flights at a 78.3% on-time rate. Combine these numbers — 79.3% on-time, 70.1-minute average delay, 1.03% cancellation rate — and you have a concrete picture of departure reliability at Austin, TX.