Best Time to Fly MEM to LAS: On-Time Stats by Hour & Airline
Memphis International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.4% of Memphis (MEM) to Las Vegas (LAS) flights arrived on time (584 scheduled flights). That is 3.8 points above the national average of 77.6%.
Among 3 airlines, Spirit Airlines led with 91.4% on time and Allegiant Air was last with 71.4%.
Over 24 months, Saturday was the most reliable day (93% on time) and June the worst month (72%).
The cancellation rate was 0.5% (US average 1.8%).
MEM 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 |
|---|---|---|---|---|
| Spirit Airlines | 91.4% | 78 min | 0.0% | 139 |
| Southwest Airlines | 81.5% | 59 min | 0.9% | 321 |
| Allegiant Air | 71.4% | 95 min | 0.0% | 105 |
| Frontier Airlines | Limited data | 19 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MEM to LAS
On-time arrival % by scheduled departure hour (local time), 1,297 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 94.9% | 0.0% | 59 |
| 7am–8am | 97.6% | 2.3% | 86 |
| 10am–11am | Limited data | 14 | |
| 11am–12pm | 85.7% | 0.9% | 106 |
| 12pm–1pm | 72.7% | 0.8% | 129 |
| 1pm–2pm | 80.8% | 0.0% | 125 |
| 2pm–3pm | 84.9% | 0.0% | 232 |
| 3pm–4pm | 92.6% | 0.0% | 81 |
| 4pm–5pm | 70.2% | 0.0% | 47 |
| 5pm–6pm | 76.4% | 0.0% | 89 |
| 6pm–7pm | 74.4% | 0.0% | 39 |
| 7pm–8pm | 77.4% | 0.0% | 31 |
| 8pm–9pm | 80.0% | 0.0% | 40 |
| 9pm–10pm | 76.2% | 0.0% | 185 |
| 10pm–11pm | 64.7% | 0.0% | 34 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MEM 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) | Limited data | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 81.8% | -0.6 pts | 0.0% | 55 |
| Summer peak (Jun 15 - Aug 15) | 76.4% | -6.0 pts | 0.0% | 208 |
| All other days | 82.4% | — | 0.4% | 1,006 |
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).