Which departure time was most reliable for DFW to TYS?
Among qualifying DFW-to-TYS departure window results, Early morning had the highest on-time rate: 83.8% of 357 flights. Evening was lowest at 53.3% across 439 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 357 | 83.8% | 7.8% | 3.1% |
| Late morning | 208 | 82.2% | 11.5% | 1.4% |
| Afternoon | 627 | 67.1% | 19.3% | 4.1% |
| Evening | 439 | 53.3% | 31.2% | 4.3% |
| Night | 90 | 68.9% | 20.0% | 2.2% |
Which weekday was most reliable for DFW to TYS?
Among qualifying DFW-to-TYS weekday results, Tuesday had the highest on-time rate: 78.9% of 246 flights. Monday was lowest at 63.7% across 248 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 248 | 63.7% | 23.4% | 2.4% |
| Tuesday | 246 | 78.9% | 12.6% | 2.8% |
| Wednesday | 238 | 71.4% | 19.3% | 0.8% |
| Thursday | 245 | 72.2% | 18.0% | 2.9% |
| Friday | 246 | 69.1% | 16.7% | 4.1% |
| Saturday | 251 | 63.7% | 21.9% | 6.0% |
| Sunday | 247 | 64.0% | 21.5% | 5.7% |
Which airline was most reliable for DFW to TYS?
Among qualifying DFW-to-TYS airline results, Envoy Air had the highest on-time rate: 90.9% of 88 flights. American Airlines was lowest at 66.9% across 1,349 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,349 | 66.9% | 19.8% | 3.9% |
| PSA Airlines | 279 | 72.4% | 20.1% | 1.8% |
| Envoy Air | 88 | 90.9% | 4.5% | 1.1% |
| SkyWest Airlines | 5 | 40.0% | 20.0% | 40.0% |
Which month was most reliable for DFW to TYS?
Among qualifying DFW-to-TYS month results, February 2026 had the highest on-time rate: 80.7% of 109 flights. June 2026 was lowest at 53.8% across 171 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 157 | 59.2% | 29.3% | 2.5% |
| August 2025 | 156 | 68.6% | 19.9% | 6.4% |
| September 2025 | 150 | 72.7% | 18.0% | 2.0% |
| October 2025 | 154 | 72.7% | 18.8% | 2.6% |
| November 2025 | 117 | 67.5% | 17.9% | 1.7% |
| December 2025 | 122 | 75.4% | 12.3% | 0.0% |
| January 2026 | 124 | 57.3% | 16.9% | 16.1% |
| February 2026 | 109 | 80.7% | 11.9% | 0.9% |
| March 2026 | 148 | 77.7% | 14.9% | 1.4% |
| April 2026 | 149 | 75.8% | 15.4% | 0.7% |
| May 2026 | 164 | 70.7% | 18.9% | 2.4% |
| June 2026 | 171 | 53.8% | 28.7% | 5.8% |
What drove DFW to TYS delay minutes?
Late aircraft was the largest recorded DFW-to-TYS delay category, accounting for 56.4% of 35,246 BTS-attributed delay minutes during July 2025–June 2026.
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