OnTimeStats

Historical on-time performance

Columbus to St. Louis

410 miData through Dec 2025Source: US DOT · BTS

Flights on CMH–STL arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights

based on 667 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time84%
    Medianon time
    p9025 min
    Cancel1.0%
    Flights667

Why flights run late

Delay causes

  • Airline14%
  • Weather2%
  • Air traffic (NAS)10%
  • Late aircraft75%
  • 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 CMH → STL

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 61% to 93% on time.

  • Mornings93% on time · p90 5 min · 936 flights
  • Middays92% on time · p90 10 min · 59 flights · limited
  • Evenings82% on time · p90 30 min · 264 flights
  • Overnights68% on time · p90 45 min · 631 flights
  • Afternoons61% on time · p90 80 min · 61 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 85% on time.

  • Wednesdays85% on time · p90 25 min · 308 flights
  • Saturdays85% on time · p90 30 min · 130 flights · limited
  • Tuesdays85% on time · p90 25 min · 310 flights
  • Mondays83% on time · p90 30 min · 315 flights
  • Fridays82% on time · p90 30 min · 311 flights
  • Thursdays80% on time · p90 30 min · 308 flights
  • Sundays78% on time · p90 30 min · 269 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.