Best Time to Fly GRR to LAS: On-Time Stats by Hour & Airline
Gerald R. Ford International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.9% of Grand Rapids (GRR) to Las Vegas (LAS) flights arrived on time (385 scheduled flights). That is 2.7 points below the national average of 77.6%.
Among 2 airlines, Southwest Airlines led with 75.1% on time and Allegiant Air was last with 74.8%.
Over 24 months, Monday was the most reliable day (81% on time) and July the worst month (64%).
The cancellation rate was 0.0% (US average 1.8%).
GRR 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 | 75.1% | 45 min | 0.0% | 175 |
| Allegiant Air | 74.8% | 62 min | 0.0% | 210 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GRR to LAS
On-time arrival % by scheduled departure hour (local time), 855 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 92.3% | 0.0% | 39 |
| 7am–8am | 83.8% | 0.0% | 68 |
| 8am–9am | 89.8% | 0.0% | 49 |
| 9am–10am | Limited data | 11 | |
| 10am–11am | Limited data | 28 | |
| 11am–12pm | Limited data | 8 | |
| 12pm–1pm | 86.9% | 0.0% | 130 |
| 1pm–2pm | 72.3% | 0.0% | 155 |
| 2pm–3pm | 70.2% | 0.0% | 143 |
| 3pm–4pm | 75.0% | 0.0% | 69 |
| 4pm–5pm | 72.2% | 0.0% | 90 |
| 5pm–6pm | Limited data | 17 | |
| 6pm–7pm | Limited data | 5 | |
| 9pm–10pm | Limited data | 6 | |
| 10pm–11pm | 75.7% | 0.0% | 37 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on GRR 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 | 19 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 62.8% | -18.5 pts | 0.0% | 43 |
| Summer peak (Jun 15 - Aug 15) | 68.9% | -12.4 pts | 0.0% | 149 |
| All other days | 81.3% | — | 0.0% | 644 |
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).