Best Time to Fly LAS to MKE: On-Time Stats by Hour & Airline
Harry Reid International → General Mitchell International
Data through July 2026 · Last updated October 18, 2026
1,049 flights were scheduled from Las Vegas (LAS) to Milwaukee (MKE) in the last 12 months, and 74.2% of those that flew arrived on time, 3.4 points below the US average of 77.6%.
Among 2 airlines, Spirit Airlines led with 86.5% on time and Southwest Airlines was last with 73.7%.
Over 24 months, Saturday was the most reliable day (90% on time) and June the worst month (67%).
The cancellation rate was 0.8% (US average 1.8%).
LAS to MKE 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 | 86.5% | 122 min | 2.6% | 38 |
| Southwest Airlines | 73.7% | 47 min | 0.6% | 1,005 |
| Frontier Airlines | Limited data | 6 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAS to MKE
On-time arrival % by scheduled departure hour (local time), 2,288 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | 89.2% | 0.0% | 37 |
| 6am–7am | Limited data | 24 | |
| 7am–8am | 97.3% | 0.0% | 148 |
| 8am–9am | 91.0% | 0.3% | 358 |
| 9am–10am | 84.1% | 0.0% | 226 |
| 10am–11am | 86.7% | 1.6% | 61 |
| 11am–12pm | 77.1% | 0.0% | 48 |
| 12pm–1pm | 71.3% | 2.1% | 97 |
| 1pm–2pm | 73.9% | 0.0% | 177 |
| 2pm–3pm | 78.0% | 0.7% | 151 |
| 3pm–4pm | 67.1% | 1.2% | 86 |
| 4pm–5pm | 68.4% | 0.7% | 154 |
| 5pm–6pm | 71.3% | 0.0% | 231 |
| 6pm–7pm | 62.5% | 0.0% | 184 |
| 7pm–8pm | 66.8% | 0.4% | 227 |
| 8pm–9pm | 66.7% | 3.2% | 31 |
| 11pm–12am | 91.7% | 0.0% | 48 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAS to MKE
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) | 76.3% | -3.4 pts | 0.0% | 38 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.5% | +0.8 pts | 0.0% | 77 |
| Summer peak (Jun 15 - Aug 15) | 69.8% | -10.0 pts | 0.2% | 399 |
| All other days | 79.7% | — | 0.5% | 1,774 |
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).