Best Time to Fly LAS to COS: On-Time Stats by Hour & Airline
Harry Reid International → City of Colorado Springs Municipal
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.7% of Las Vegas (LAS) to Colorado Springs (COS) flights arrived on time (861 scheduled flights). That is 1.9 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (87% on time) and July the worst month (70%).
The cancellation rate was 0.2% (US average 1.8%).
LAS to COS 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 | 75.7% | 52 min | 0.2% | 861 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAS to COS
On-time arrival % by scheduled departure hour (local time), 1,730 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 93.2% | 0.0% | 73 |
| 8am–9am | 90.2% | 0.0% | 215 |
| 9am–10am | 89.2% | 0.0% | 129 |
| 10am–11am | 84.9% | 0.0% | 73 |
| 11am–12pm | 83.0% | 1.1% | 89 |
| 12pm–1pm | 91.2% | 0.0% | 57 |
| 1pm–2pm | 61.0% | 0.0% | 41 |
| 2pm–3pm | 77.4% | 0.0% | 62 |
| 3pm–4pm | 67.2% | 0.0% | 133 |
| 4pm–5pm | 69.6% | 0.0% | 69 |
| 5pm–6pm | 73.3% | 0.0% | 86 |
| 6pm–7pm | 73.7% | 0.0% | 57 |
| 7pm–8pm | 82.0% | 0.0% | 190 |
| 8pm–9pm | 72.6% | 0.9% | 221 |
| 9pm–10pm | 59.9% | 1.2% | 169 |
| 10pm–11pm | 67.2% | 3.0% | 66 |
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 COS
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 | 29 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 80.3% | +1.7 pts | 0.0% | 61 |
| Summer peak (Jun 15 - Aug 15) | 72.7% | -5.9 pts | 0.0% | 298 |
| All other days | 78.6% | — | 0.5% | 1,342 |
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).