OnTimeStats

Historical on-time performance

Chicago to Detroit

235 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–DTW 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
Cancelled2.0%of scheduled flights

based on 5,515 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time75%
    Medianon time
    p9050 min
    Cancel2.6%
    Flights719
  • Delta Air Linesbest
    On-time78%
    Medianon time
    p9055 min
    Cancel0.9%
    Flights1,606
  • United Airlines
    On-time74%
    Medianon time
    p9050 min
    Cancel1.5%
    Flights593
  • SkyWest Airlines
    On-time69%
    Medianon time
    p9080 min
    Cancel2.8%
    Flights1,993
  • Envoy Air
    On-time74%
    Medianon time
    p9050 min
    Cancel2.3%
    Flights604

Why flights run late

Delay causes

  • Airline36%
  • Weather10%
  • Air traffic (NAS)14%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

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Keep exploring

Related pages

Delay predictorfor this route→ORD airportChicago→DTW airportDetroit→Endeavor Air on this routecarrier detail→Endeavor Airairline profile→

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.