OnTimeRoutes
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Southwest Airlines LAS to SMF on-time performance

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

On-time arrivals
78%
arrived < 15 min late
Cancelled
0.3%
11 flights
Avg arrival delay
13 min
51 min when late
Rank on route
#3 of 4
route average 79% on time

Key facts

  • Southwest Airlines flights on LAS to SMF arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 0.3% were cancelled, and 6% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (59%).

On-time trend by month

50%75%100%July 2025: 67.5% on time, 0.7% cancelledJul ’25August 2025: 81.8% on time, 0.0% cancelledAug ’25September 2025: 77.0% on time, 0.4% cancelledSep ’25October 2025: 71.2% on time, 0.0% cancelledOct ’25November 2025: 82.3% on time, 0.3% cancelledNov ’25December 2025: 80.0% on time, 0.0% cancelledDec ’25January 2026: 81.7% on time, 0.4% cancelledJan ’26February 2026: 85.7% on time, 0.0% cancelledFeb ’26March 2026: 81.7% on time, 0.0% cancelledMar ’26April 2026: 76.8% on time, 0.0% cancelledApr ’26May 2026: 71.9% on time, 1.0% cancelledMay ’26June 2026: 67.6% on time, 1.0% cancelledJun ’26July 2026: 74.9% on time, 0.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft59%
  • Airline (crew, maintenance, cleaning, fueling)34%
  • Air traffic control & airport congestion6%
  • Extreme weather0%
  • Security0%

Other airlines on LAS to SMF

Full LAS to SMF comparison →
Southwest Airlines on-time record across all routes →

3,452 Southwest Airlines flights tracked on this route; 11 cancelled, 2 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.