Which departure time was most reliable for ORD to RDU?
Among qualifying ORD-to-RDU departure window results, Early morning had the highest on-time rate: 84.5% of 695 flights. Evening was lowest at 59.3% across 1,060 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 695 | 84.5% | 9.2% | 0.9% |
| Late morning | 855 | 79.1% | 12.7% | 0.9% |
| Afternoon | 923 | 69.8% | 18.1% | 2.1% |
| Evening | 1,060 | 59.3% | 27.9% | 3.7% |
| Night | 59 | 66.1% | 20.3% | 6.8% |
Which weekday was most reliable for ORD to RDU?
Among qualifying ORD-to-RDU weekday results, Tuesday had the highest on-time rate: 78.2% of 490 flights. Sunday was lowest at 68.5% across 555 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 553 | 70.7% | 17.7% | 2.5% |
| Tuesday | 490 | 78.2% | 14.5% | 0.4% |
| Wednesday | 483 | 73.7% | 18.0% | 1.2% |
| Thursday | 538 | 70.6% | 18.4% | 1.9% |
| Friday | 534 | 68.5% | 19.1% | 1.3% |
| Saturday | 439 | 72.7% | 17.1% | 3.6% |
| Sunday | 555 | 68.5% | 20.9% | 3.8% |
Which airline was most reliable for ORD to RDU?
Among qualifying ORD-to-RDU airline results, SkyWest Airlines had the highest on-time rate: 79.1% of 67 flights. American Airlines was lowest at 59.6% across 555 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,298 | 76.0% | 14.7% | 1.0% |
| Republic Airways | 1,018 | 71.3% | 17.3% | 2.8% |
| American Airlines | 555 | 59.6% | 29.9% | 3.4% |
| Envoy Air | 521 | 75.8% | 14.6% | 1.7% |
| Frontier Airlines | 131 | 63.4% | 22.1% | 4.6% |
| SkyWest Airlines | 67 | 79.1% | 13.4% | 0.0% |
| PSA Airlines | 2 | 50.0% | 50.0% | 0.0% |
Which month was most reliable for ORD to RDU?
Among qualifying ORD-to-RDU month results, September 2025 had the highest on-time rate: 81.6% of 266 flights. July 2025 was lowest at 63.9% across 277 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 277 | 63.9% | 26.0% | 1.1% |
| August 2025 | 273 | 71.8% | 17.6% | 2.2% |
| September 2025 | 266 | 81.6% | 10.2% | 0.0% |
| October 2025 | 328 | 74.1% | 14.6% | 0.3% |
| November 2025 | 308 | 71.8% | 17.5% | 3.9% |
| December 2025 | 291 | 66.0% | 25.8% | 1.0% |
| January 2026 | 232 | 65.9% | 19.8% | 8.2% |
| February 2026 | 244 | 75.0% | 14.3% | 0.4% |
| March 2026 | 316 | 65.5% | 21.5% | 2.8% |
| April 2026 | 356 | 69.4% | 20.2% | 2.0% |
| May 2026 | 374 | 80.2% | 12.8% | 1.3% |
| June 2026 | 327 | 73.1% | 16.8% | 3.1% |
What drove ORD to RDU delay minutes?
Late aircraft was the largest recorded ORD-to-RDU delay category, accounting for 46.9% of 73,584 BTS-attributed delay minutes during July 2025–June 2026.
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