Knoxville to Denver — airline reliability comparison
SkyWest Airlines is the most reliable airline on the TYS to DEN route with a 90% on-time rate, compared to Frontier Airlines at 71%. Based on 1,880 flights tracked.
This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 90% | 0.8% | 79m | 1,880 |
| United AirlinesUA | 79% | 0.6% | 70m | 697 |
| Southwest AirlinesWN | 73% | 0.0% | 50m | 67 |
| Frontier AirlinesF9Worst | 71% | 0.3% | 80m | 369 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.