Which departure time was most reliable for TYS to DCA?
Among qualifying TYS-to-DCA departure window results, Early morning had the highest on-time rate: 77.5% of 346 flights. Evening was lowest at 47.1% across 221 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 346 | 77.5% | 13.6% | 4.0% |
| Late morning | 301 | 69.1% | 18.3% | 3.0% |
| Afternoon | 155 | 66.5% | 24.5% | 2.6% |
| Evening | 221 | 47.1% | 30.8% | 10.4% |
Which weekday was most reliable for TYS to DCA?
Among qualifying TYS-to-DCA weekday results, Saturday had the highest on-time rate: 71.4% of 119 flights. Friday was lowest at 60.4% across 149 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 149 | 62.4% | 23.5% | 6.0% |
| Tuesday | 155 | 69.7% | 18.1% | 3.9% |
| Wednesday | 152 | 68.4% | 19.7% | 4.6% |
| Thursday | 149 | 66.4% | 21.5% | 4.0% |
| Friday | 149 | 60.4% | 22.1% | 5.4% |
| Saturday | 119 | 71.4% | 17.6% | 5.0% |
| Sunday | 150 | 69.3% | 19.3% | 5.3% |
Which airline was most reliable for TYS to DCA?
Among qualifying TYS-to-DCA airline results, Republic Airways had the highest on-time rate: 78.9% of 38 flights. PSA Airlines was lowest at 66.3% across 983 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| PSA Airlines | 983 | 66.3% | 20.9% | 4.8% |
| Republic Airways | 38 | 78.9% | 5.3% | 7.9% |
| Envoy Air | 2 | 50.0% | 50.0% | 0.0% |
Which month was most reliable for TYS to DCA?
Among qualifying TYS-to-DCA month results, May 2026 had the highest on-time rate: 80.9% of 94 flights. March 2026 was lowest at 52.8% across 89 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 92 | 55.4% | 21.7% | 16.3% |
| August 2025 | 89 | 66.3% | 21.3% | 5.6% |
| September 2025 | 86 | 79.1% | 14.0% | 0.0% |
| October 2025 | 88 | 72.7% | 17.0% | 0.0% |
| November 2025 | 84 | 66.7% | 21.4% | 3.6% |
| December 2025 | 63 | 55.6% | 36.5% | 1.6% |
| January 2026 | 79 | 62.0% | 20.3% | 10.1% |
| February 2026 | 80 | 62.5% | 23.8% | 3.8% |
| March 2026 | 89 | 52.8% | 27.0% | 6.7% |
| April 2026 | 89 | 70.8% | 20.2% | 2.2% |
| May 2026 | 94 | 80.9% | 13.8% | 1.1% |
| June 2026 | 90 | 72.2% | 12.2% | 6.7% |
What drove TYS to DCA delay minutes?
Late aircraft was the largest recorded TYS-to-DCA delay category, accounting for 41.4% of 33,912 BTS-attributed delay minutes during July 2025–June 2026.
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