Austin to Harlingen/San Benito

What the Data Says About AUS to HRL

The Austin to Harlingen/San Benito corridor (AUS → HRL) covers roughly 273 miles and is served by 2 carriers, based on Bureau of Transportation Statistics reporting. Across 2,680 flights in the dataset, this route posts a 82.6% on-time rate with an average delay of 56.9 minutes when flights run late. Over the most recent 24 months of BTS data, 1,522 flights were recorded on this pairing — 19 cancelled (1.2%) and 1 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 2 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,680 total flights analyzed, the 82.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 56.9-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Jan 2025 posted the best performance on this corridor at 92% on-time, while Jul 2025 came in at 56% on-time — a 37-point gap between best and worst recent month. For travelers evaluating the AUS to HRL route, the combination of a 82.6% on-time rate, 56.9-minute average delay, 1.2% recent cancellation rate, and 2 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.