OnTimeStats

Historical on-time performance

Las Vegas to Milwaukee

1,524 miData through May 2026Source: US DOT · BTS

Flights on LAS–MKE arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 1,005 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time75%
    Medianon time
    p9035 min
    Cancel0.6%
    Flights1,005

Why flights run late

Delay causes

  • Airline32%
  • Weather0%
  • Air traffic (NAS)11%
  • Late aircraft57%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline17%
  • Weather50%
  • Air traffic (NAS)33%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 6 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 LAS → MKE

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

Best time of day

Mornings are the most reliable time of day to fly this route — 90% on time.

  • Mornings90% on time · p90 10 min · 1,039 flights
  • Middays73% on time · p90 40 min · 947 flights
  • Afternoons70% on time · p90 50 min · 666 flights
  • Evenings64% on time · p90 60 min · 974 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 85% on time.

  • Saturdays85% on time · p90 20 min · 443 flights
  • Wednesdays83% on time · p90 25 min · 495 flights
  • Tuesdays80% on time · p90 35 min · 510 flights
  • Mondays73% on time · p90 45 min · 564 flights
  • Fridays72% on time · p90 45 min · 570 flights
  • Sundays72% on time · p90 45 min · 586 flights
  • Thursdays69% on time · p90 50 min · 579 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.