OnTimeStats

Historical on-time performance

Milwaukee to Denver

896 miData through May 2026Source: US DOT · BTS

Flights on MKE–DEN arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 2,239 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.

  • Southwest Airlines
    On-time79%
    Medianon time
    p9040 min
    Cancel0.8%
    Flights1,261
  • SkyWest Airlines
    On-time78%
    Medianon time
    p9055 min
    Cancel0.0%
    Flights207
  • United Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel0.1%
    Flights771

Why flights run late

Delay causes

  • Airline30%
  • Weather3%
  • Air traffic (NAS)38%
  • Late aircraft29%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline55%
  • Weather36%
  • Air traffic (NAS)9%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 11 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MKE → DEN

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 67% to 88% on time.

  • Mornings88% on time · p90 15 min · 2,511 flights
  • Middays87% on time · p90 20 min · 1,884 flights
  • Afternoons77% on time · p90 45 min · 1,666 flights
  • Overnights69% on time · p90 75 min · 479 flights
  • Evenings67% on time · p90 65 min · 1,180 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 83% on time.

  • Tuesdays83% on time · p90 30 min · 1,041 flights
  • Wednesdays82% on time · p90 30 min · 1,075 flights
  • Thursdays82% on time · p90 35 min · 1,151 flights
  • Sundays81% on time · p90 35 min · 1,117 flights
  • Mondays81% on time · p90 35 min · 1,186 flights
  • Saturdays80% on time · p90 35 min · 951 flights
  • Fridays79% on time · p90 40 min · 1,199 flights

Keep exploring

Related pages

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.