OnTimeStats

Historical on-time performance

St. Louis to Sarasota

903 miData through May 2026Source: US DOT · BTS

Flights on STL–SRQ arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 308 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time72%
    Medianon time
    p9045 min
    Cancel0.6%
    Flights308

Why flights run late

Delay causes

  • Airline28%
  • Weather3%
  • Air traffic (NAS)11%
  • Late aircraft58%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather50%
  • Air traffic (NAS)50%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 2 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 STL → SRQ

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 68% to 77% on time.

  • Mornings77% on time · p90 35 min · 115 flights · limited
  • Middays76% on time · p90 35 min · 335 flights
  • Evenings74% on time · p90 50 min · 305 flights
  • Afternoons70% on time · p90 35 min · 123 flights · limited
  • Overnights68% on time · p90 70 min · 177 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 70% to 79% on time.

  • Thursdays79% on time · p90 30 min · 135 flights · limited
  • Mondays77% on time · p90 30 min · 133 flights · limited
  • Fridays76% on time · p90 50 min · 134 flights · limited
  • Tuesdays76% on time · p90 35 min · 129 flights · limited
  • Sundays71% on time · p90 35 min · 174 flights · limited
  • Wednesdays71% on time · p90 50 min · 123 flights · limited
  • Saturdays70% on time · p90 45 min · 227 flights

Keep exploring

Related pages

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.