OnTimeStats

Historical on-time performance

Knoxville to St. Petersburg

550 miData through Dec 2025Source: US DOT · BTS

Flights on TYS–PIE arrive on time 71% of the time over the last 12 months.

On-time rate71%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 522 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Allegiant Air
    On-time71%
    Medianon time
    p9060 min
    Cancel0.4%
    Flights522

Why flights run late

Delay causes

  • Airline43%
  • Weather2%
  • Air traffic (NAS)19%
  • Late aircraft34%
  • Security2%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly TYS → PIE

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 84% on time.

  • Mornings84% on time · p90 30 min · 364 flights
  • Middays77% on time · p90 30 min · 328 flights
  • Afternoons71% on time · p90 65 min · 305 flights
  • Evenings62% on time · p90 100 min · 225 flights
  • Overnights61% on time · p90 60 min · 130 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 76% on time.

  • Saturdays76% on time · p90 70 min · 214 flights
  • Sundays75% on time · p90 75 min · 216 flights
  • Mondays75% on time · p90 50 min · 225 flights
  • Tuesdays75% on time · p90 55 min · 107 flights · limited
  • Thursdays73% on time · p90 45 min · 212 flights
  • Wednesdays70% on time · p90 60 min · 155 flights · limited
  • Fridays70% on time · p90 70 min · 223 flights
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.