OnTimeStats

Historical on-time performance

Phoenix to Grand Rapids

1,574 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–GRR arrive on time 83% of the time over the last 12 months.

On-time rate83%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 93 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time83%
    Medianon time
    p9040 min
    Cancel1.1%
    Flights93

Why flights run late

Delay causes

  • Airline28%
  • Weather0%
  • Air traffic (NAS)10%
  • Late aircraft62%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly PHX → GRR

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Middays are the most reliable time of day to fly this route — 87% on time.

  • Middays87% on time · p90 20 min · 61 flights · limited
  • Afternoons77% on time · p90 55 min · 332 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 84% on time.

  • Saturdays84% on time · p90 20 min · 63 flights · limited
  • Fridays83% on time · p90 50 min · 63 flights · limited
  • Tuesdays82% on time · p90 35 min · 66 flights · limited
  • Sundays81% on time · p90 40 min · 64 flights · limited
  • Wednesdays80% on time · p90 70 min · 65 flights · limited
  • Thursdays78% on time · p90 65 min · 64 flights · limited
  • Mondays71% on time · p90 100 min · 65 flights · limited
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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.