Which departure time was most reliable for DEN to LAS?
Among qualifying DEN-to-LAS departure window results, Early morning had the highest on-time rate: 92.9% of 1,348 flights. Evening was lowest at 63.4% across 1,844 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,348 | 92.9% | 3.2% | 0.4% |
| Late morning | 1,395 | 80.9% | 9.8% | 0.4% |
| Afternoon | 1,956 | 71.3% | 17.3% | 0.7% |
| Evening | 1,844 | 63.4% | 25.2% | 0.9% |
| Night | 565 | 64.8% | 23.4% | 1.4% |
Which weekday was most reliable for DEN to LAS?
Among qualifying DEN-to-LAS weekday results, Wednesday had the highest on-time rate: 80.6% of 940 flights. Thursday was lowest at 68.9% across 1,075 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 1,077 | 71.3% | 18.8% | 0.4% |
| Tuesday | 919 | 80.6% | 12.8% | 0.5% |
| Wednesday | 940 | 80.6% | 10.5% | 0.3% |
| Thursday | 1,075 | 68.9% | 19.7% | 0.2% |
| Friday | 1,103 | 69.8% | 19.9% | 1.1% |
| Saturday | 864 | 80.0% | 11.3% | 0.6% |
| Sunday | 1,130 | 74.6% | 14.6% | 1.4% |
Which airline was most reliable for DEN to LAS?
Among qualifying DEN-to-LAS airline results, United Airlines had the highest on-time rate: 78.2% of 2,420 flights. Southwest Airlines was lowest at 71.6% across 3,131 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 3,131 | 71.6% | 17.2% | 0.7% |
| United Airlines | 2,420 | 78.2% | 14.2% | 0.4% |
| Frontier Airlines | 1,557 | 75.6% | 14.9% | 1.0% |
Which month was most reliable for DEN to LAS?
Among qualifying DEN-to-LAS month results, February 2026 had the highest on-time rate: 83.6% of 567 flights. July 2025 was lowest at 61.9% across 561 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 561 | 61.9% | 25.0% | 1.1% |
| August 2025 | 527 | 68.9% | 19.9% | 0.8% |
| September 2025 | 537 | 70.9% | 18.1% | 0.2% |
| October 2025 | 653 | 74.3% | 15.5% | 0.0% |
| November 2025 | 594 | 79.6% | 12.3% | 2.2% |
| December 2025 | 560 | 74.3% | 14.1% | 0.4% |
| January 2026 | 564 | 83.2% | 9.4% | 0.2% |
| February 2026 | 567 | 83.6% | 10.2% | 0.5% |
| March 2026 | 666 | 78.5% | 15.3% | 0.8% |
| April 2026 | 646 | 78.8% | 12.5% | 0.5% |
| May 2026 | 640 | 76.2% | 13.8% | 0.6% |
| June 2026 | 593 | 64.8% | 23.3% | 0.8% |
What drove DEN to LAS delay minutes?
Late aircraft was the largest recorded DEN-to-LAS delay category, accounting for 47.9% of 108,940 BTS-attributed delay minutes during July 2025–June 2026.
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