Best Time to Fly TUS to LAS: On-Time Stats by Hour & Airline
Tucson International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
1,336 flights were scheduled from Tucson (TUS) to Las Vegas (LAS) in the last 12 months, and 84.5% of those that flew arrived on time, 6.9 points above the US average of 77.6%.
Southwest Airlines was the most punctual of the 2 airlines on the route at 85.1%, while Frontier Airlines trailed at 77.0%.
November has been the best month (92% on time) and Thursday the weakest day of the week (79%).
0.2% of flights were cancelled, versus 1.8% nationally.
TUS to LAS 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 | 85.1% | 62 min | 0.2% | 1,248 |
| Frontier Airlines | 77.0% | 114 min | 1.1% | 88 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly TUS to LAS
On-time arrival % by scheduled departure hour (local time), 2,612 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 98.1% | 0.4% | 261 |
| 6am–7am | 97.5% | 0.0% | 198 |
| 7am–8am | 96.8% | 0.0% | 252 |
| 8am–9am | Limited data | 15 | |
| 9am–10am | 90.1% | 0.0% | 91 |
| 10am–11am | 88.9% | 0.0% | 198 |
| 11am–12pm | 85.2% | 0.0% | 196 |
| 12pm–1pm | 75.9% | 0.0% | 162 |
| 1pm–2pm | 79.4% | 0.0% | 131 |
| 2pm–3pm | 72.9% | 1.5% | 135 |
| 3pm–4pm | 70.8% | 0.0% | 147 |
| 4pm–5pm | 78.2% | 0.0% | 151 |
| 5pm–6pm | 82.7% | 0.0% | 104 |
| 6pm–7pm | 84.4% | 0.0% | 206 |
| 7pm–8pm | 75.2% | 0.5% | 207 |
| 8pm–9pm | 63.7% | 0.8% | 125 |
| 9pm–10pm | 84.8% | 0.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on TUS to LAS
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) | 89.1% | +4.0 pts | 0.0% | 55 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.5% | -1.6 pts | 0.0% | 115 |
| Summer peak (Jun 15 - Aug 15) | 80.3% | -4.8 pts | 0.0% | 386 |
| All other days | 85.1% | — | 0.2% | 2,056 |
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).