Historical on-time performance
Philadelphia to Knoxville
555 miData through May 2026Source: US DOT · BTS
Flights on PHL–TYS arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay100 min1 in 10 flights is worse (tail risk)
Cancelled7.3%of scheduled flights
based on 288 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time62%Medianon timep90100 minCancel7.3%Flights288
Why flights run late
Delay causes
- Airline21%
- Weather18%
- Air traffic (NAS)17%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline14%
- Weather86%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 21 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 PHL → TYS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 55 min · 179 flights · limited
- Evenings69% on time · p90 75 min · 903 flights
- Afternoons69% on time · p90 80 min · 144 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 80% on time.
- Wednesdays80% on time · p90 35 min · 171 flights · limited
- Tuesdays76% on time · p90 60 min · 190 flights · limited
- Mondays72% on time · p90 85 min · 180 flights · limited
- Sundays71% on time · p90 70 min · 195 flights · limited
- Thursdays69% on time · p90 65 min · 194 flights · limited
- Saturdays67% on time · p90 85 min · 169 flights · limited
- Fridays67% on time · p90 105 min · 181 flights · limited
Keep exploring