Best Time to Fly TYS to DEN: On-Time Stats by Hour & Airline
McGhee Tyson → Denver International
Data through July 2026 · Last updated October 18, 2026
1,001 flights were scheduled from Knoxville (TYS) to Denver (DEN) in the last 12 months, and 84.7% of those that flew arrived on time, 7.1 points above the US average of 77.6%.
Among 5 airlines, SkyWest Airlines led with 93.0% on time and Southwest Airlines was last with 67.6%.
Over 24 months, Saturday was the most reliable day (88% on time) and June the worst month (68%).
The cancellation rate was 0.5% (US average 1.8%).
TYS to DEN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 93.0% | 98 min | 1.4% | 363 |
| Allegiant Air | 87.9% | 48 min | 0.0% | 66 |
| United Airlines | 83.0% | 83 min | 0.0% | 365 |
| Frontier Airlines | 74.6% | 86 min | 0.0% | 134 |
| Southwest Airlines | 67.6% | 76 min | 0.0% | 73 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly TYS to DEN
On-time arrival % by scheduled departure hour (local time), 1,941 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | 87.5% | 0.0% | 33 |
| 7am–8am | 94.8% | 0.0% | 58 |
| 8am–9am | 93.3% | 1.4% | 551 |
| 9am–10am | 93.5% | 0.0% | 185 |
| 10am–11am | Limited data | 22 | |
| 11am–12pm | Limited data | 11 | |
| 12pm–1pm | Limited data | 13 | |
| 1pm–2pm | Limited data | 2 | |
| 2pm–3pm | Limited data | 9 | |
| 3pm–4pm | Limited data | 30 | |
| 4pm–5pm | 80.7% | 0.5% | 839 |
| 5pm–6pm | 51.9% | 0.0% | 54 |
| 6pm–7pm | Limited data | 1 | |
| 7pm–8pm | 62.2% | 0.0% | 45 |
| 8pm–9pm | 71.2% | 0.0% | 73 |
| 10pm–11pm | Limited data | 13 | |
| 11pm–12am | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on TYS to DEN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 80.6% | -5.8 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 95.0% | +8.6 pts | 0.0% | 80 |
| Summer peak (Jun 15 - Aug 15) | 73.1% | -13.3 pts | 0.0% | 376 |
| All other days | 86.4% | — | 0.8% | 1,449 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).