OnTimeStats

Historical on-time performance

St. Louis to Tulsa

351 miData through Dec 2025Source: US DOT · BTS

Flights on STL–TUL arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 679 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time81%
    Medianon time
    p9040 min
    Cancel1.3%
    Flights679

Why flights run late

Delay causes

  • Airline20%
  • Weather1%
  • Air traffic (NAS)5%
  • Late aircraft74%
  • Security1%

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 STL → TUL

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 69% to 92% on time.

  • Mornings92% on time · p90 10 min · 151 flights · limited
  • Middays90% on time · p90 10 min · 904 flights
  • Evenings74% on time · p90 50 min · 78 flights · limited
  • Overnights69% on time · p90 55 min · 879 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.

  • Tuesdays83% on time · p90 30 min · 314 flights
  • Thursdays82% on time · p90 35 min · 310 flights
  • Saturdays81% on time · p90 30 min · 182 flights · limited
  • Wednesdays81% on time · p90 35 min · 314 flights
  • Mondays80% on time · p90 40 min · 314 flights
  • Fridays77% on time · p90 45 min · 310 flights
  • Sundays76% on time · p90 50 min · 296 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.