OnTimeStats

Historical on-time performance

Rochester to Detroit

296 miData through May 2026Source: US DOT · BTS

Flights on ROC–DTW arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights

based on 347 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time81%
    Medianon time
    p9055 min
    Cancel2.3%
    Flights347

Why flights run late

Delay causes

  • Airline68%
  • Weather20%
  • Air traffic (NAS)11%
  • Late aircraft0%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline13%
  • Weather25%
  • Air traffic (NAS)63%
  • Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 8 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 ROC → DTW

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

Best time of day

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

  • Mornings89% on time · p90 15 min · 779 flights
  • Middays83% on time · p90 45 min · 1,259 flights
  • Evenings78% on time · p90 45 min · 641 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 88% on time.

  • Saturdays88% on time · p90 25 min · 318 flights
  • Wednesdays87% on time · p90 25 min · 388 flights
  • Mondays84% on time · p90 45 min · 399 flights
  • Tuesdays84% on time · p90 30 min · 390 flights
  • Thursdays82% on time · p90 50 min · 396 flights
  • Fridays81% on time · p90 40 min · 396 flights
  • Sundays80% on time · p90 60 min · 392 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.