OnTimeStats

Historical on-time performance

Columbus to Dallas

919 miData through Dec 2025Source: US DOT · BTS

Flights on CMH–DAL arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 424 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time73%
    Medianon time
    p9045 min
    Cancel0.7%
    Flights424

Why flights run late

Delay causes

  • Airline17%
  • Weather5%
  • Air traffic (NAS)20%
  • Late aircraft58%
  • 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 → DAL

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 58% to 91% on time.

  • Mornings91% on time · p90 10 min · 141 flights · limited
  • Middays87% on time · p90 20 min · 286 flights
  • Afternoons76% on time · p90 40 min · 584 flights
  • Evenings58% on time · p90 70 min · 227 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 85% on time.

  • Tuesdays85% on time · p90 20 min · 166 flights · limited
  • Mondays80% on time · p90 35 min · 166 flights · limited
  • Wednesdays79% on time · p90 45 min · 162 flights · limited
  • Fridays76% on time · p90 40 min · 167 flights · limited
  • Thursdays76% on time · p90 30 min · 164 flights · limited
  • Saturdays73% on time · p90 65 min · 162 flights · limited
  • Sundays71% on time · p90 40 min · 254 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.