OnTimeStats

Historical on-time performance

Baltimore to Columbus

336 miData through May 2026Source: US DOT · BTS

Flights on BWI–CMH arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights

based on 1,056 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel2.0%
    Flights1,056

Why flights run late

Delay causes

  • Airline31%
  • Weather3%
  • Air traffic (NAS)11%
  • Late aircraft55%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline10%
  • Weather86%
  • Air traffic (NAS)5%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 21 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 BWI → CMH

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 91% on time.

  • Mornings91% on time · p90 10 min · 580 flights
  • Middays85% on time · p90 20 min · 573 flights
  • Afternoons72% on time · p90 45 min · 755 flights
  • Overnights63% on time · p90 65 min · 984 flights
  • Evenings62% on time · p90 65 min · 351 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 80% on time.

  • Tuesdays80% on time · p90 30 min · 457 flights
  • Wednesdays79% on time · p90 35 min · 454 flights
  • Thursdays75% on time · p90 40 min · 474 flights
  • Saturdays75% on time · p90 50 min · 422 flights
  • Fridays73% on time · p90 45 min · 478 flights
  • Mondays69% on time · p90 55 min · 475 flights
  • Sundays66% on time · p90 50 min · 483 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.