Which departure time was most reliable for DEN to RDU?
Among qualifying DEN-to-RDU departure window results, Early morning had the highest on-time rate: 92.9% of 70 flights. Evening was lowest at 62.4% across 644 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 70 | 92.9% | 1.4% | 1.4% |
| Late morning | 827 | 81.0% | 8.7% | 0.6% |
| Afternoon | 180 | 78.9% | 13.9% | 1.7% |
| Evening | 644 | 62.4% | 23.6% | 0.6% |
| Night | 47 | 83.0% | 12.8% | 0.0% |
Which weekday was most reliable for DEN to RDU?
Among qualifying DEN-to-RDU weekday results, Tuesday had the highest on-time rate: 80.8% of 245 flights. Monday was lowest at 70.7% across 266 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 266 | 70.7% | 14.3% | 0.0% |
| Tuesday | 245 | 80.8% | 12.7% | 0.4% |
| Wednesday | 230 | 76.5% | 10.4% | 0.4% |
| Thursday | 262 | 71.8% | 17.6% | 0.4% |
| Friday | 264 | 72.0% | 16.3% | 0.4% |
| Saturday | 239 | 77.8% | 14.2% | 0.8% |
| Sunday | 262 | 73.3% | 15.3% | 2.7% |
Which airline was most reliable for DEN to RDU?
Among qualifying DEN-to-RDU airline results, Frontier Airlines had the highest on-time rate: 84.9% of 285 flights. Southwest Airlines was lowest at 64.1% across 708 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 775 | 80.3% | 11.7% | 0.5% |
| Southwest Airlines | 708 | 64.1% | 19.9% | 0.7% |
| Frontier Airlines | 285 | 84.9% | 8.4% | 1.4% |
Which month was most reliable for DEN to RDU?
Among qualifying DEN-to-RDU month results, November 2025 had the highest on-time rate: 82.5% of 137 flights. July 2025 was lowest at 61.2% across 183 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 183 | 61.2% | 27.3% | 0.0% |
| August 2025 | 162 | 69.1% | 19.1% | 1.2% |
| September 2025 | 133 | 70.7% | 12.0% | 0.0% |
| October 2025 | 136 | 72.8% | 14.0% | 0.0% |
| November 2025 | 137 | 82.5% | 8.0% | 0.0% |
| December 2025 | 147 | 80.3% | 11.6% | 0.0% |
| January 2026 | 138 | 81.9% | 6.5% | 5.8% |
| February 2026 | 128 | 82.0% | 10.9% | 0.8% |
| March 2026 | 149 | 77.2% | 16.8% | 0.7% |
| April 2026 | 146 | 78.8% | 11.0% | 0.0% |
| May 2026 | 155 | 78.1% | 9.0% | 0.6% |
| June 2026 | 154 | 65.6% | 22.1% | 0.0% |
What drove DEN to RDU delay minutes?
Late aircraft was the largest recorded DEN-to-RDU delay category, accounting for 49.2% of 24,094 BTS-attributed delay minutes during July 2025–June 2026.
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