OnTimeStats

Historical on-time performance

Phoenix to Idaho Falls

695 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–IDA 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)
Cancelled0.0%of scheduled flights

based on 123 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time83%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights123

Why flights run late

Delay causes

  • Airline37%
  • Weather42%
  • Air traffic (NAS)6%
  • Late aircraft15%
  • Security0%

Most delay minutes here are attributed to Weather.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly PHX → IDA

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 77% to 89% on time.

  • Mornings89% on time · p90 15 min · 213 flights
  • Afternoons84% on time · p90 35 min · 154 flights · limited
  • Overnights82% on time · p90 30 min · 177 flights · limited
  • Evenings77% on time · p90 45 min · 57 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 91% on time.

  • Wednesdays91% on time · p90 10 min · 87 flights · limited
  • Tuesdays89% on time · p90 20 min · 88 flights · limited
  • Saturdays86% on time · p90 20 min · 84 flights · limited
  • Thursdays84% on time · p90 30 min · 85 flights · limited
  • Mondays83% on time · p90 40 min · 87 flights · limited
  • Sundays82% on time · p90 45 min · 88 flights · limited
  • Fridays79% on time · p90 40 min · 85 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.