OnTimeStats

Historical on-time performance

Chicago to Flint

223 miData through Dec 2025Source: US DOT · BTS

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

On-time rate66%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled2.7%of scheduled flights

based on 1,571 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
    p9085 min
    Cancel2.7%
    Flights1,571

Why flights run late

Delay causes

  • Airline42%
  • Weather15%
  • Air traffic (NAS)13%
  • Late aircraft29%
  • 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 → FNT

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 60% to 76% on time.

  • Mornings76% on time · p90 40 min · 180 flights · limited
  • Middays73% on time · p90 60 min · 1,525 flights
  • Evenings66% on time · p90 85 min · 823 flights
  • Overnights64% on time · p90 100 min · 476 flights
  • Afternoons60% on time · p90 155 min · 124 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 61% to 74% on time.

  • Tuesdays74% on time · p90 65 min · 443 flights
  • Saturdays73% on time · p90 60 min · 436 flights
  • Mondays72% on time · p90 75 min · 458 flights
  • Thursdays69% on time · p90 65 min · 443 flights
  • Fridays69% on time · p90 70 min · 452 flights
  • Wednesdays69% on time · p90 90 min · 437 flights
  • Sundays61% on time · p90 85 min · 459 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.