Best Time to Fly LAS to AUS: On-Time Stats by Hour & Airline
Harry Reid International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
2,877 flights were scheduled from Las Vegas (LAS) to Austin (AUS) in the last 12 months, and 73.8% of those that flew arrived on time, 3.8 points below the US average of 77.6%.
Frontier Airlines was the most punctual of the 3 airlines on the route at 81.1%, while Delta Air Lines trailed at 70.8%.
January has been the best month (82% on time) and Thursday the weakest day of the week (70%).
0.5% of flights were cancelled, versus 1.8% nationally.
LAS 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 |
|---|---|---|---|---|
| Frontier Airlines | 81.1% | 69 min | 1.0% | 295 |
| Southwest Airlines | 73.3% | 49 min | 0.3% | 2,194 |
| Delta Air Lines | 70.8% | 78 min | 0.8% | 365 |
| Allegiant Air | Limited data | 19 | ||
| Spirit Airlines | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAS to AUS
On-time arrival % by scheduled departure hour (local time), 5,946 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.6% | 0.3% | 337 |
| 6am–7am | 94.8% | 0.0% | 367 |
| 7am–8am | 88.5% | 0.4% | 456 |
| 8am–9am | 88.3% | 1.0% | 501 |
| 9am–10am | 77.9% | 0.3% | 304 |
| 10am–11am | 79.8% | 0.3% | 283 |
| 11am–12pm | 77.9% | 0.6% | 351 |
| 12pm–1pm | 65.5% | 0.0% | 203 |
| 1pm–2pm | 72.2% | 0.6% | 319 |
| 2pm–3pm | 74.3% | 0.3% | 329 |
| 3pm–4pm | 56.2% | 0.0% | 272 |
| 4pm–5pm | 64.8% | 0.2% | 423 |
| 5pm–6pm | 70.3% | 0.8% | 1,044 |
| 6pm–7pm | 66.3% | 0.4% | 251 |
| 7pm–8pm | 56.3% | 0.4% | 233 |
| 8pm–9pm | 59.6% | 0.6% | 172 |
| 9pm–10pm | Limited data | 26 | |
| 11pm–12am | 83.8% | 1.3% | 75 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAS 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) | 83.7% | +6.0 pts | 0.0% | 104 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.5% | -6.1 pts | 0.0% | 239 |
| Summer peak (Jun 15 - Aug 15) | 67.2% | -10.4 pts | 0.8% | 1,023 |
| All other days | 77.6% | — | 0.4% | 4,580 |
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).