Which departure time was most reliable for TYS to ORD?
Among qualifying TYS-to-ORD departure window results, Early morning had the highest on-time rate: 74.9% of 701 flights. Evening was lowest at 50.5% across 552 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 701 | 74.9% | 15.7% | 4.0% |
| Late morning | 403 | 73.7% | 17.4% | 2.0% |
| Afternoon | 563 | 60.7% | 25.6% | 3.7% |
| Evening | 552 | 50.5% | 31.2% | 5.6% |
Which weekday was most reliable for TYS to ORD?
Among qualifying TYS-to-ORD weekday results, Wednesday had the highest on-time rate: 67.1% of 316 flights. Monday was lowest at 62.5% across 325 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 325 | 62.5% | 24.0% | 4.6% |
| Tuesday | 320 | 65.6% | 23.1% | 2.8% |
| Wednesday | 316 | 67.1% | 20.6% | 3.2% |
| Thursday | 321 | 64.2% | 22.4% | 5.0% |
| Friday | 321 | 65.7% | 22.7% | 2.2% |
| Saturday | 292 | 65.8% | 20.9% | 5.5% |
| Sunday | 325 | 64.3% | 22.5% | 4.9% |
Which airline was most reliable for TYS to ORD?
Among qualifying TYS-to-ORD airline results, United Airlines had the highest on-time rate: 83.9% of 317 flights. PSA Airlines was lowest at 56.4% across 834 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| PSA Airlines | 834 | 56.4% | 28.5% | 6.5% |
| SkyWest Airlines | 815 | 64.0% | 22.3% | 2.9% |
| United Airlines | 317 | 83.9% | 8.8% | 2.5% |
| Envoy Air | 175 | 73.7% | 17.1% | 1.7% |
| Republic Airways | 79 | 70.9% | 22.8% | 0.0% |
Which month was most reliable for TYS to ORD?
Among qualifying TYS-to-ORD month results, May 2026 had the highest on-time rate: 76.7% of 215 flights. December 2025 was lowest at 42.3% across 130 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 245 | 58.8% | 28.6% | 3.7% |
| August 2025 | 227 | 70.5% | 18.1% | 3.1% |
| September 2025 | 192 | 73.4% | 16.1% | 1.0% |
| October 2025 | 234 | 66.2% | 24.4% | 0.0% |
| November 2025 | 176 | 57.4% | 25.6% | 7.4% |
| December 2025 | 130 | 42.3% | 43.1% | 5.4% |
| January 2026 | 118 | 58.5% | 24.6% | 9.3% |
| February 2026 | 125 | 68.8% | 20.0% | 1.6% |
| March 2026 | 149 | 52.3% | 26.8% | 9.4% |
| April 2026 | 198 | 74.2% | 12.1% | 6.1% |
| May 2026 | 215 | 76.7% | 17.2% | 1.9% |
| June 2026 | 211 | 67.3% | 19.4% | 3.8% |
What drove TYS to ORD delay minutes?
Late aircraft was the largest recorded TYS-to-ORD delay category, accounting for 37.1% of 71,157 BTS-attributed delay minutes during July 2025–June 2026.
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