Which departure time was most reliable for AUS to DEN?
Among qualifying AUS-to-DEN departure window results, Early morning had the highest on-time rate: 89.8% of 1,427 flights. Evening was lowest at 59.8% across 1,243 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,427 | 89.8% | 5.3% | 0.6% |
| Late morning | 949 | 87.1% | 6.5% | 0.7% |
| Afternoon | 1,504 | 75.6% | 14.8% | 1.1% |
| Evening | 1,243 | 59.8% | 27.9% | 0.9% |
| Night | 187 | 70.1% | 21.9% | 0.0% |
Which weekday was most reliable for AUS to DEN?
Among qualifying AUS-to-DEN weekday results, Tuesday had the highest on-time rate: 83.1% of 705 flights. Thursday was lowest at 74.3% across 840 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 840 | 76.4% | 15.2% | 1.2% |
| Tuesday | 705 | 83.1% | 11.2% | 0.7% |
| Wednesday | 701 | 78.3% | 14.8% | 0.4% |
| Thursday | 840 | 74.3% | 15.8% | 0.4% |
| Friday | 840 | 75.8% | 15.7% | 0.6% |
| Saturday | 570 | 81.4% | 9.8% | 1.1% |
| Sunday | 814 | 75.8% | 14.4% | 1.4% |
Which airline was most reliable for AUS to DEN?
Among qualifying AUS-to-DEN airline results, Frontier Airlines had the highest on-time rate: 84.2% of 549 flights. Southwest Airlines was lowest at 72.1% across 2,356 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,356 | 72.1% | 17.4% | 0.6% |
| United Airlines | 1,915 | 81.5% | 11.2% | 1.2% |
| Frontier Airlines | 549 | 84.2% | 10.6% | 0.5% |
| SkyWest Airlines | 490 | 81.0% | 13.3% | 0.6% |
Which month was most reliable for AUS to DEN?
Among qualifying AUS-to-DEN month results, April 2026 had the highest on-time rate: 83.9% of 447 flights. July 2025 was lowest at 62.9% across 437 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 437 | 62.9% | 24.3% | 2.3% |
| August 2025 | 399 | 75.2% | 14.5% | 1.3% |
| September 2025 | 377 | 81.2% | 11.4% | 0.8% |
| October 2025 | 431 | 80.3% | 10.7% | 0.0% |
| November 2025 | 428 | 81.8% | 11.9% | 0.2% |
| December 2025 | 449 | 75.5% | 16.0% | 0.0% |
| January 2026 | 427 | 82.2% | 9.8% | 3.5% |
| February 2026 | 421 | 81.2% | 11.6% | 0.2% |
| March 2026 | 516 | 78.7% | 14.7% | 0.6% |
| April 2026 | 447 | 83.9% | 8.9% | 0.2% |
| May 2026 | 466 | 77.5% | 16.7% | 0.2% |
| June 2026 | 512 | 71.9% | 17.2% | 0.6% |
What drove AUS to DEN delay minutes?
Late aircraft was the largest recorded AUS-to-DEN delay category, accounting for 43.1% of 72,047 BTS-attributed delay minutes during July 2025–June 2026.
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