OnTimeStats

Historical on-time performance

San Francisco to Columbus

2,120 miData through Dec 2025Source: US DOT · BTS

Flights on SFO–CMH arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 252 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time77%
    Medianon time
    p9030 min
    Cancel0.4%
    Flights252

Why flights run late

Delay causes

  • Airline42%
  • Weather0%
  • Air traffic (NAS)28%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SFO → CMH

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 — 84% on time.

  • Mornings84% on time · p90 20 min · 260 flights
  • Overnights71% on time · p90 50 min · 371 flights
  • Middays67% on time · p90 45 min · 307 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 79% on time.

  • Mondays79% on time · p90 35 min · 134 flights · limited
  • Saturdays78% on time · p90 25 min · 134 flights · limited
  • Thursdays73% on time · p90 30 min · 133 flights · limited
  • Tuesdays73% on time · p90 35 min · 133 flights · limited
  • Wednesdays72% on time · p90 45 min · 135 flights · limited
  • Sundays71% on time · p90 35 min · 136 flights · limited
  • Fridays68% on time · p90 60 min · 133 flights · limited
Advertisement

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.