OnTimeStats

Historical on-time performance

Phoenix to Milwaukee

1,460 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–MKE arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 1,447 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time79%
    Medianon time
    p9035 min
    Cancel0.9%
    Flights453
  • Southwest Airlines
    On-time75%
    Medianon time
    p9040 min
    Cancel0.2%
    Flights994

Why flights run late

Delay causes

  • Airline37%
  • Weather0%
  • Air traffic (NAS)11%
  • Late aircraft52%
  • 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 → MKE

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

Best time of day

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

  • Mornings87% on time · p90 15 min · 1,639 flights
  • Middays83% on time · p90 25 min · 625 flights
  • Evenings71% on time · p90 45 min · 968 flights
  • Afternoons69% on time · p90 50 min · 662 flights
  • Overnights52% on time · p90 90 min · 231 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.

  • Saturdays82% on time · p90 25 min · 642 flights
  • Tuesdays81% on time · p90 30 min · 570 flights
  • Sundays77% on time · p90 40 min · 559 flights
  • Wednesdays77% on time · p90 40 min · 574 flights
  • Fridays77% on time · p90 45 min · 591 flights
  • Mondays77% on time · p90 40 min · 596 flights
  • Thursdays75% on time · p90 35 min · 594 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.