OnTimeStats

Historical on-time performance

Chicago to Saginaw

222 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–MBS arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 1,070 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time69%
    Medianon time
    p9070 min
    Cancel1.9%
    Flights1,070

Why flights run late

Delay causes

  • Airline43%
  • Weather4%
  • Air traffic (NAS)17%
  • Late aircraft37%
  • 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 ORD → MBS

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 — 80% on time.

  • Mornings80% on time · p90 35 min · 491 flights
  • Middays71% on time · p90 60 min · 1,088 flights
  • Afternoons70% on time · p90 55 min · 236 flights
  • Evenings68% on time · p90 75 min · 992 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 78% on time.

  • Tuesdays78% on time · p90 50 min · 410 flights
  • Saturdays76% on time · p90 45 min · 388 flights
  • Wednesdays74% on time · p90 50 min · 409 flights
  • Mondays70% on time · p90 80 min · 413 flights
  • Fridays70% on time · p90 60 min · 415 flights
  • Thursdays69% on time · p90 55 min · 406 flights
  • Sundays65% on time · p90 85 min · 392 flights
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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.