OnTimeStats

Historical on-time performance

Milwaukee to Salt Lake City

1,247 miData through Dec 2025Source: US DOT · BTS

Flights on MKE–SLC arrive on time 93% of the time over the last 12 months.

On-time rate93%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 215 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time93%
    Medianon time
    p9010 min
    Cancel0.0%
    Flights215

Why flights run late

Delay causes

  • Airline85%
  • Weather12%
  • Air traffic (NAS)3%
  • Late aircraft0%
  • 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 MKE → SLC

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

Best day of week

On-time rates are fairly even by day on this route — ranging from 84% to 94% on time.

  • Tuesdays94% on time · p90 10 min · 132 flights · limited
  • Thursdays89% on time · p90 15 min · 130 flights · limited
  • Mondays89% on time · p90 15 min · 131 flights · limited
  • Wednesdays89% on time · p90 15 min · 131 flights · limited
  • Saturdays88% on time · p90 15 min · 131 flights · limited
  • Sundays86% on time · p90 20 min · 131 flights · limited
  • Fridays84% on time · p90 35 min · 127 flights · limited
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Keep exploring

Related pages

Delay predictorfor this route→MKE airportMilwaukee→SLC airportSalt Lake City→Delta Air Lines on this routecarrier detail→Delta Air Linesairline profile→

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.