Which departure time was most reliable for MIA to LAS?
Among qualifying MIA-to-LAS departure window results, Early morning had the highest on-time rate: 90.5% of 358 flights. Afternoon was lowest at 62.3% across 207 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 358 | 90.5% | 5.0% | 1.1% |
| Late morning | 96 | 80.2% | 10.4% | 0.0% |
| Afternoon | 207 | 62.3% | 26.1% | 1.0% |
| Evening | 596 | 64.8% | 23.2% | 0.8% |
| Night | 172 | 69.8% | 20.3% | 1.7% |
Which weekday was most reliable for MIA to LAS?
Among qualifying MIA-to-LAS weekday results, Wednesday had the highest on-time rate: 77.1% of 192 flights. Sunday was lowest at 60.4% across 202 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 216 | 71.3% | 19.0% | 3.2% |
| Tuesday | 197 | 76.1% | 15.2% | 1.0% |
| Wednesday | 192 | 77.1% | 13.0% | 0.5% |
| Thursday | 211 | 71.6% | 17.5% | 0.0% |
| Friday | 215 | 76.3% | 16.3% | 0.5% |
| Saturday | 196 | 75.0% | 18.9% | 0.0% |
| Sunday | 202 | 60.4% | 24.8% | 1.5% |
Which airline was most reliable for MIA to LAS?
Among qualifying MIA-to-LAS airline results, Frontier Airlines had the highest on-time rate: 81.8% of 77 flights. Spirit Airlines was lowest at 66.7% across 72 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,277 | 72.3% | 17.6% | 0.9% |
| Frontier Airlines | 77 | 81.8% | 15.6% | 1.3% |
| Spirit Airlines | 72 | 66.7% | 23.6% | 2.8% |
| Delta Air Lines | 3 | 66.7% | 33.3% | 0.0% |
Which month was most reliable for MIA to LAS?
Among qualifying MIA-to-LAS month results, March 2026 had the highest on-time rate: 80.6% of 93 flights. July 2025 was lowest at 63.4% across 161 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 161 | 63.4% | 26.7% | 1.2% |
| August 2025 | 154 | 76.6% | 18.2% | 0.6% |
| September 2025 | 114 | 65.8% | 24.6% | 0.0% |
| October 2025 | 130 | 78.5% | 13.8% | 0.8% |
| November 2025 | 118 | 72.9% | 15.3% | 0.0% |
| December 2025 | 134 | 79.9% | 14.2% | 0.7% |
| January 2026 | 108 | 72.2% | 14.8% | 5.6% |
| February 2026 | 84 | 75.0% | 11.9% | 1.2% |
| March 2026 | 93 | 80.6% | 10.8% | 2.2% |
| April 2026 | 118 | 69.5% | 18.6% | 0.0% |
| May 2026 | 126 | 72.2% | 15.9% | 0.0% |
| June 2026 | 89 | 64.0% | 25.8% | 0.0% |
What drove MIA to LAS delay minutes?
Late aircraft was the largest recorded MIA-to-LAS delay category, accounting for 41.2% of 24,816 BTS-attributed delay minutes during July 2025–June 2026.
Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.