Historical on-time performance
Knoxville to Sanford
511 miData through May 2026Source: US DOT · BTS
Flights on TYS–SFB arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 640 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Allegiant AirOn-time68%Medianon timep9080 minCancel0.6%Flights640
Why flights run late
Delay causes
- Airline13%
- Weather11%
- Air traffic (NAS)13%
- Late aircraft63%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- 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 TYS → SFB
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 — 89% on time.
- Mornings89% on time · p90 10 min · 435 flights
- Middays79% on time · p90 55 min · 453 flights
- Afternoons66% on time · p90 75 min · 417 flights
- Evenings64% on time · p90 85 min · 461 flights
- Overnights57% on time · p90 125 min · 121 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 82% on time.
- Tuesdays82% on time · p90 35 min · 176 flights · limited
- Wednesdays79% on time · p90 40 min · 141 flights · limited
- Thursdays78% on time · p90 45 min · 335 flights
- Mondays74% on time · p90 60 min · 289 flights
- Saturdays73% on time · p90 70 min · 309 flights
- Fridays71% on time · p90 80 min · 292 flights
- Sundays66% on time · p90 85 min · 345 flights
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