Best Time to Fly LAS to DTW: On-Time Stats by Hour & Airline
Harry Reid International → Detroit Metro Wayne County
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.1% of Las Vegas (LAS) to Detroit (DTW) flights arrived on time (2,789 scheduled flights). That is 3.5 points above the national average of 77.6%.
Among 4 airlines, Delta Air Lines led with 84.5% on time and Southwest Airlines was last with 63.8%.
Over 24 months, Tuesday was the most reliable day (89% on time) and July the worst month (73%).
The cancellation rate was 0.6% (US average 1.8%).
LAS to DTW 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 |
|---|---|---|---|---|
| Delta Air Lines | 84.5% | 70 min | 0.5% | 1,880 |
| Spirit Airlines | 81.7% | 93 min | 1.4% | 501 |
| Frontier Airlines | 70.4% | 63 min | 0.0% | 71 |
| Southwest Airlines | 63.8% | 42 min | 0.0% | 337 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAS to DTW
On-time arrival % by scheduled departure hour (local time), 6,022 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | 65.7% | 0.0% | 35 |
| 5am–6am | 90.6% | 1.0% | 194 |
| 6am–7am | 92.3% | 0.2% | 600 |
| 7am–8am | 90.0% | 0.0% | 70 |
| 8am–9am | 92.3% | 0.0% | 79 |
| 9am–10am | 90.4% | 0.1% | 668 |
| 10am–11am | 85.6% | 0.5% | 196 |
| 11am–12pm | 82.5% | 0.5% | 810 |
| 12pm–1pm | 74.5% | 0.0% | 520 |
| 1pm–2pm | 74.9% | 0.5% | 421 |
| 2pm–3pm | 82.8% | 0.0% | 99 |
| 3pm–4pm | 79.5% | 0.3% | 648 |
| 4pm–5pm | 86.8% | 1.4% | 69 |
| 5pm–6pm | 77.8% | 0.0% | 198 |
| 6pm–7pm | 73.0% | 0.0% | 37 |
| 9pm–10pm | 80.4% | 3.6% | 111 |
| 10pm–11pm | 81.7% | 0.2% | 595 |
| 11pm–12am | 80.9% | 0.9% | 672 |
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 DTW
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) | 88.2% | +3.8 pts | 0.0% | 110 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.7% | -2.6 pts | 0.4% | 231 |
| Summer peak (Jun 15 - Aug 15) | 74.7% | -9.7 pts | 0.7% | 928 |
| All other days | 84.3% | — | 0.4% | 4,753 |
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).