OnTimeStats

Historical on-time performance

CMHORD

Columbus to Chicago

296 miData through Dec 2025Source: US DOT · BTS

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

On-time rate73%arrived within 15 min
Median delayon timetypical arrival
p90 delay60 min1 in 10 flights is worsetail risk
Cancelled1.4%of scheduled flights

based on 4,436 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time84%
    Medianon time
    p9025 min
    Cancel0.8%
    Flights1,488
  • SkyWest Airlines
    On-time56%
    Median5 min
    p90120 min
    Cancel4.4%
    Flights409
  • United Airlines
    On-time65%
    Medianon time
    p9065 min
    Cancel1.1%
    Flights1,187
  • Envoy Air
    On-time72%
    Medianon time
    p9060 min
    Cancel1.2%
    Flights1,321
  • American Airlinesbest
    On-time87%
    Medianon time
    p905 min
    Cancel3.2%
    Flights31

Why flights run late

Delay causes

  • Airline31%
  • Weather7%
  • Air traffic (NAS)31%
  • Late aircraft31%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

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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.