OnTimeStats

Historical on-time performance

Detroit to Saginaw

98 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–MBS arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 1,235 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time80%
    Medianon time
    p9050 min
    Cancel1.3%
    Flights1,235

Why flights run late

Delay causes

  • Airline74%
  • Weather19%
  • Air traffic (NAS)7%
  • Late aircraft0%
  • 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 DTW → MBS

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 76% to 83% on time.

  • Overnights83% on time · p90 30 min · 1,090 flights
  • Middays83% on time · p90 40 min · 1,312 flights
  • Afternoons76% on time · p90 65 min · 881 flights

Best day of week

Saturdays are the most reliable day to fly this route — 89% on time.

  • Saturdays89% on time · p90 15 min · 391 flights
  • Fridays81% on time · p90 40 min · 487 flights
  • Mondays81% on time · p90 45 min · 494 flights
  • Tuesdays81% on time · p90 45 min · 475 flights
  • Wednesdays80% on time · p90 40 min · 476 flights
  • Thursdays79% on time · p90 55 min · 485 flights
  • Sundays76% on time · p90 80 min · 481 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.