OnTimeStats

Historical on-time performance

Detroit to Kalamazoo

113 miData through May 2026Source: US DOT · BTS

Flights on DTW–AZO arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay105 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 970 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time72%
    Medianon time
    p90105 min
    Cancel1.9%
    Flights970

Why flights run late

Delay causes

  • Airline76%
  • Weather20%
  • Air traffic (NAS)4%
  • Late aircraft0%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather78%
  • Air traffic (NAS)22%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 18 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DTW → AZO

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 76% to 80% on time.

  • Overnights80% on time · p90 55 min · 1,035 flights
  • Middays78% on time · p90 70 min · 1,031 flights
  • Afternoons76% on time · p90 75 min · 771 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.

  • Saturdays83% on time · p90 30 min · 328 flights
  • Tuesdays79% on time · p90 60 min · 423 flights
  • Wednesdays79% on time · p90 60 min · 425 flights
  • Thursdays77% on time · p90 75 min · 436 flights
  • Mondays77% on time · p90 70 min · 433 flights
  • Sundays76% on time · p90 65 min · 427 flights
  • Fridays76% on time · p90 70 min · 433 flights

Keep exploring

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.