OnTimeStats

Historical on-time performance

Chicago to Hancock

359 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–CMX arrive on time 66% of the time over the last 12 months.

On-time rate66%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled4.5%of scheduled flights

based on 795 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time66%
    Medianon time
    p9090 min
    Cancel4.5%
    Flights795

Why flights run late

Delay causes

  • Airline35%
  • Weather21%
  • Air traffic (NAS)9%
  • Late aircraft35%
  • 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 ORD → CMX

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 63% to 72% on time.

  • Middays72% on time · p90 70 min · 513 flights
  • Afternoons67% on time · p90 65 min · 639 flights
  • Evenings64% on time · p90 90 min · 596 flights
  • Overnights63% on time · p90 100 min · 482 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 71% on time.

  • Tuesdays71% on time · p90 75 min · 310 flights
  • Wednesdays68% on time · p90 75 min · 323 flights
  • Sundays66% on time · p90 95 min · 324 flights
  • Mondays66% on time · p90 75 min · 321 flights
  • Thursdays66% on time · p90 60 min · 319 flights
  • Fridays66% on time · p90 70 min · 323 flights
  • Saturdays63% on time · p90 95 min · 310 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.