OnTimeStats

Historical on-time performance

Sarasota to St. Louis

903 miData through Dec 2025Source: US DOT · BTS

Flights on SRQ–STL arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 343 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time86%
    Medianon time
    p9020 min
    Cancel0.9%
    Flights343

Why flights run late

Delay causes

  • Airline21%
  • Weather6%
  • Air traffic (NAS)10%
  • Late aircraft63%
  • 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 SRQ → STL

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 — 95% on time.

  • Mornings95% on time · p90 5 min · 486 flights
  • Middays76% on time · p90 30 min · 276 flights
  • Afternoons73% on time · p90 50 min · 162 flights · limited
  • Evenings72% on time · p90 70 min · 114 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 89% on time.

  • Tuesdays89% on time · p90 15 min · 129 flights · limited
  • Thursdays87% on time · p90 20 min · 140 flights · limited
  • Fridays86% on time · p90 25 min · 138 flights · limited
  • Mondays85% on time · p90 20 min · 135 flights · limited
  • Wednesdays85% on time · p90 15 min · 134 flights · limited
  • Saturdays78% on time · p90 40 min · 212 flights
  • Sundays75% on time · p90 65 min · 181 flights · limited
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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.