Best Time to Fly CMH to LAS: On-Time Stats by Hour & Airline
John Glenn Columbus International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.6% of Columbus (CMH) to Las Vegas (LAS) flights arrived on time (898 scheduled flights). That is 2.0 points above the national average of 77.6%.
Among 2 airlines, Spirit Airlines led with 81.7% on time and Southwest Airlines was last with 79.5%.
Over 24 months, Tuesday was the most reliable day (87% on time) and August the worst month (75%).
The cancellation rate was 0.5% (US average 1.8%).
CMH 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 | 81.7% | 53 min | 0.0% | 60 |
| Southwest Airlines | 79.5% | 59 min | 0.5% | 838 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to LAS
On-time arrival % by scheduled departure hour (local time), 2,026 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.7% | 0.5% | 191 |
| 6am–7am | 94.1% | 0.8% | 376 |
| 7am–8am | 96.9% | 0.0% | 128 |
| 8am–9am | 100.0% | 0.0% | 40 |
| 9am–10am | Limited data | 29 | |
| 10am–11am | 87.1% | 0.0% | 62 |
| 11am–12pm | 84.6% | 0.0% | 39 |
| 12pm–1pm | 86.5% | 0.0% | 52 |
| 1pm–2pm | 64.8% | 0.0% | 108 |
| 2pm–3pm | 74.2% | 0.0% | 66 |
| 3pm–4pm | 75.9% | 0.9% | 113 |
| 4pm–5pm | 79.9% | 0.0% | 174 |
| 5pm–6pm | 71.6% | 0.0% | 148 |
| 6pm–7pm | 68.5% | 0.0% | 149 |
| 7pm–8pm | 62.6% | 0.0% | 174 |
| 8pm–9pm | 66.7% | 0.0% | 144 |
| 9pm–10pm | Limited data | 25 | |
| 10pm–11pm | Limited data | 8 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CMH 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) | 81.2% | -0.5 pts | 0.0% | 32 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.1% | -5.7 pts | 0.0% | 71 |
| Summer peak (Jun 15 - Aug 15) | 77.5% | -4.2 pts | 0.3% | 303 |
| All other days | 81.7% | — | 0.2% | 1,620 |
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).