OnTimeRoutes
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Southwest Airlines MKE to LAS on-time performance

Southwest Airlines nonstop flights from Milwaukee to Las Vegas · Aug 2025 – Jul 2026

On-time arrivals
82%
arrived < 15 min late
Cancelled
0.9%
9 flights
Avg arrival delay
10 min
51 min when late
Rank on route
#2 of 3
route average 82% on time

Key facts

  • Southwest Airlines flights on MKE to LAS arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 0.9% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (51%).

On-time trend by month

60%80%100%July 2025: 72.6% on time, 0.0% cancelledJul ’25August 2025: 85.4% on time, 0.0% cancelledAug ’25September 2025: 80.0% on time, 0.0% cancelledSep ’25October 2025: 87.1% on time, 0.0% cancelledOct ’25November 2025: 81.7% on time, 4.1% cancelledNov ’25December 2025: 70.7% on time, 0.0% cancelledDec ’25January 2026: 81.2% on time, 1.4% cancelledJan ’26February 2026: 84.5% on time, 0.0% cancelledFeb ’26March 2026: 84.9% on time, 5.1% cancelledMar ’26April 2026: 84.6% on time, 0.0% cancelledApr ’26May 2026: 84.6% on time, 0.0% cancelledMay ’26June 2026: 72.0% on time, 0.0% cancelledJun ’26July 2026: 83.5% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft51%
  • Airline (crew, maintenance, cleaning, fueling)24%
  • Air traffic control & airport congestion24%
  • Security1%
  • Extreme weather0%

Other airlines on MKE to LAS

1,005 Southwest Airlines flights tracked on this route; 9 cancelled, 1 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.