Best Time to Fly LAX to LAS: On-Time Stats by Hour & Airline
Los Angeles International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.6% of Los Angeles (LAX) to Las Vegas (LAS) flights arrived on time (8,239 scheduled flights). That is 1.0 points below the national average of 77.6%.
SkyWest Airlines was the most punctual of the 7 airlines on the route at 85.8%, while American Airlines trailed at 69.3%.
December has been the best month (82% on time) and Thursday the weakest day of the week (70%).
0.8% of flights were cancelled, versus 1.8% nationally.
LAX 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 |
|---|---|---|---|---|
| SkyWest Airlines | 85.8% | 47 min | 1.5% | 342 |
| Spirit Airlines | 84.9% | 80 min | 1.1% | 550 |
| United Airlines | 84.0% | 57 min | 0.5% | 1,570 |
| Delta Air Lines | 79.0% | 58 min | 0.9% | 1,735 |
| Frontier Airlines | 72.3% | 83 min | 1.1% | 624 |
| Southwest Airlines | 71.2% | 52 min | 0.6% | 2,377 |
| American Airlines | 69.3% | 84 min | 0.7% | 1,024 |
| Alaska Airlines | Limited data | 17 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAX to LAS
On-time arrival % by scheduled departure hour (local time), 17,576 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.8% | 1.1% | 473 |
| 6am–7am | 96.8% | 0.0% | 408 |
| 7am–8am | 94.2% | 0.5% | 985 |
| 8am–9am | 92.0% | 0.4% | 1,212 |
| 9am–10am | 83.3% | 0.4% | 1,209 |
| 10am–11am | 86.6% | 0.9% | 641 |
| 11am–12pm | 78.1% | 0.7% | 1,233 |
| 12pm–1pm | 73.8% | 0.3% | 663 |
| 1pm–2pm | 74.4% | 0.1% | 797 |
| 2pm–3pm | 72.0% | 0.1% | 724 |
| 3pm–4pm | 64.7% | 0.3% | 1,455 |
| 4pm–5pm | 77.1% | 0.5% | 1,089 |
| 5pm–6pm | 69.5% | 0.4% | 1,126 |
| 6pm–7pm | 72.8% | 0.7% | 872 |
| 7pm–8pm | 76.3% | 0.8% | 1,687 |
| 8pm–9pm | 71.0% | 0.2% | 934 |
| 9pm–10pm | 71.0% | 0.7% | 998 |
| 10pm–11pm | 79.5% | 0.4% | 1,001 |
| 11pm–12am | 84.1% | 0.0% | 69 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAX 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) | 84.7% | +5.4 pts | 0.6% | 341 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.0% | -8.2 pts | 0.6% | 729 |
| Summer peak (Jun 15 - Aug 15) | 74.0% | -5.2 pts | 0.5% | 2,898 |
| All other days | 79.2% | — | 0.5% | 13,608 |
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).