Historical on-time performance
Denver to Knoxville
1,162 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–TYS arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 693 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time82%Medianon timep9025 minCancel0.0%Flights245
- SkyWest AirlinesOn-time72%Medianon timep9050 minCancel1.1%Flights448
Why flights run late
Delay causes
- Airline28%
- Weather8%
- Air traffic (NAS)30%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DEN → TYS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 69% to 84% on time.
- Mornings84% on time · p90 25 min · 352 flights
- Middays81% on time · p90 35 min · 1,125 flights
- Afternoons79% on time · p90 35 min · 140 flights · limited
- Evenings69% on time · p90 60 min · 1,188 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 79% on time.
- Tuesdays79% on time · p90 35 min · 320 flights
- Sundays77% on time · p90 55 min · 466 flights
- Wednesdays77% on time · p90 40 min · 384 flights
- Mondays75% on time · p90 40 min · 422 flights
- Thursdays75% on time · p90 50 min · 459 flights
- Fridays75% on time · p90 45 min · 410 flights
- Saturdays74% on time · p90 55 min · 344 flights
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