Best Time to Fly DTW to LAS: On-Time Stats by Hour & Airline
Detroit Metro Wayne County → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.2% of Detroit (DTW) to Las Vegas (LAS) flights arrived on time (2,792 scheduled flights). That is 2.4 points below the national average of 77.6%.
Among 4 airlines, Spirit Airlines led with 80.1% on time and Frontier Airlines was last with 64.8%.
Over 24 months, Tuesday was the most reliable day (84% on time) and February the worst month (71%).
The cancellation rate was 0.5% (US average 1.8%).
DTW 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 | 80.1% | 53 min | 0.8% | 501 |
| Delta Air Lines | 75.3% | 63 min | 0.5% | 1,883 |
| Southwest Airlines | 69.8% | 43 min | 0.0% | 337 |
| Frontier Airlines | 64.8% | 62 min | 0.0% | 71 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DTW to LAS
On-time arrival % by scheduled departure hour (local time), 6,023 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.3% | 0.0% | 31 |
| 6am–7am | 83.3% | 0.0% | 90 |
| 7am–8am | 88.4% | 0.5% | 415 |
| 8am–9am | 81.9% | 0.4% | 522 |
| 9am–10am | 83.6% | 0.4% | 527 |
| 10am–11am | 86.9% | 0.5% | 377 |
| 11am–12pm | 86.2% | 0.0% | 131 |
| 12pm–1pm | 78.2% | 0.1% | 829 |
| 1pm–2pm | 68.3% | 0.5% | 220 |
| 2pm–3pm | 76.0% | 2.0% | 51 |
| 3pm–4pm | Limited data | 27 | |
| 4pm–5pm | 73.7% | 0.0% | 779 |
| 5pm–6pm | 75.0% | 0.0% | 40 |
| 6pm–7pm | 72.9% | 0.1% | 692 |
| 7pm–8pm | 82.4% | 0.9% | 213 |
| 8pm–9pm | 73.5% | 0.5% | 824 |
| 9pm–10pm | 86.4% | 0.0% | 125 |
| 10pm–11pm | 81.8% | 0.8% | 127 |
| 11pm–12am | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DTW 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) | 69.4% | -11.6 pts | 0.0% | 111 |
| Christmas & New Year (Dec 20 - Jan 3) | 65.7% | -15.3 pts | 0.4% | 231 |
| Summer peak (Jun 15 - Aug 15) | 71.0% | -10.0 pts | 0.7% | 929 |
| All other days | 81.0% | — | 0.2% | 4,752 |
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).