Historical on-time performance
Denver to Knoxville
1,162 miData through May 2026Source: US DOT · BTS
Flights on DEN–TYS arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 643 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time83%Medianon timep9025 minCancel0.0%Flights277
- SkyWest AirlinesOn-time72%Medianon timep9060 minCancel1.1%Flights366
Why flights run late
Delay causes
- Airline28%
- Weather8%
- Air traffic (NAS)27%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather75%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 4 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 85% on time.
- Mornings85% on time · p90 25 min · 294 flights
- Middays82% on time · p90 30 min · 1,215 flights
- Afternoons77% on time · p90 35 min · 148 flights · limited
- Evenings71% on time · p90 60 min · 1,166 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Tuesdays81% on time · p90 30 min · 319 flights
- Wednesdays80% on time · p90 30 min · 373 flights
- Thursdays77% on time · p90 45 min · 469 flights
- Sundays77% on time · p90 50 min · 483 flights
- Mondays77% on time · p90 30 min · 413 flights
- Fridays76% on time · p90 50 min · 408 flights
- Saturdays74% on time · p90 55 min · 358 flights
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