Best Time to Fly HRL to AUS: On-Time Stats by Hour & Airline
Valley International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.8% of Harlingen/San Benito (HRL) to Austin (AUS) flights arrived on time (708 scheduled flights). That is 4.2 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (86% on time) and July the worst month (67%).
The cancellation rate was 0.1% (US average 1.8%).
HRL to AUS on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 81.8% | 58 min | 0.1% | 708 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HRL to AUS
On-time arrival % by scheduled departure hour (local time), 1,595 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 13 | |
| 6am–7am | 96.3% | 0.0% | 165 |
| 7am–8am | 96.0% | 1.6% | 383 |
| 8am–9am | 95.0% | 1.0% | 100 |
| 9am–10am | Limited data | 10 | |
| 10am–11am | Limited data | 16 | |
| 11am–12pm | 86.0% | 0.0% | 44 |
| 12pm–1pm | Limited data | 16 | |
| 1pm–2pm | 84.2% | 0.7% | 141 |
| 2pm–3pm | 51.9% | 3.6% | 56 |
| 3pm–4pm | Limited data | 5 | |
| 4pm–5pm | Limited data | 16 | |
| 5pm–6pm | 73.6% | 1.9% | 461 |
| 6pm–7pm | 66.9% | 0.0% | 157 |
| 7pm–8pm | Limited data | 12 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on HRL to AUS
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 77.4% | -7.5 pts | 0.0% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.6% | -2.3 pts | 1.4% | 70 |
| Summer peak (Jun 15 - Aug 15) | 71.9% | -13.0 pts | 0.0% | 262 |
| All other days | 84.9% | — | 1.5% | 1,232 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).