OnTimeStats

Historical on-time performance

Phoenix to Flagstaff

119 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–FLG arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,311 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time78%
    Medianon time
    p9050 min
    Cancel1.8%
    Flights1,311

Why flights run late

Delay causes

  • Airline63%
  • Weather5%
  • Air traffic (NAS)5%
  • Late aircraft27%
  • 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 PHX → FLG

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 83% to 88% on time.

  • Mornings88% on time · p90 10 min · 936 flights
  • Afternoons86% on time · p90 25 min · 762 flights
  • Evenings83% on time · p90 30 min · 433 flights
  • Middays83% on time · p90 30 min · 938 flights
  • Overnights83% on time · p90 40 min · 852 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 82% to 87% on time.

  • Wednesdays87% on time · p90 15 min · 535 flights
  • Tuesdays87% on time · p90 20 min · 512 flights
  • Saturdays86% on time · p90 20 min · 532 flights
  • Thursdays86% on time · p90 20 min · 588 flights
  • Mondays83% on time · p90 30 min · 578 flights
  • Sundays83% on time · p90 40 min · 595 flights
  • Fridays82% on time · p90 30 min · 582 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.