OnTimeRoutes
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Southwest Airlines SLC to LAX on-time performance

Southwest Airlines nonstop flights from Salt Lake City to Los Angeles · Aug 2025 – Jul 2026

On-time arrivals
82%
arrived < 15 min late
Cancelled
0.3%
1 flights
Avg arrival delay
9 min
44 min when late
Rank on route
#6 of 6
route average 86% on time

Key facts

  • Southwest Airlines flights on SLC to LAX arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 0.3% were cancelled, and 3% arrived an hour or more late.
  • That ranks #6 of 6 airlines on this route, which averaged 86% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (60%).

On-time trend by month

50%75%100%July 2025: 64.5% on time, 0.0% cancelledJul ’25August 2025: 88.2% on time, 0.0% cancelledAug ’25September 2025: 70.6% on time, 0.0% cancelledSep ’25October 2025: 74.2% on time, 0.0% cancelledOct ’25November 2025: 100.0% on time, 0.0% cancelledNov ’25December 2025: 67.7% on time, 0.0% cancelledDec ’25January 2026: 90.3% on time, 0.0% cancelledJan ’26February 2026: 86.7% on time, 3.2% cancelledFeb ’26March 2026: 90.3% on time, 0.0% cancelledMar ’26April 2026: 66.7% on time, 0.0% cancelledApr ’26May 2026: 83.3% on time, 0.0% cancelledMay ’26June 2026: 83.3% on time, 0.0% cancelledJun ’26July 2026: 87.1% 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 aircraft60%
  • Airline (crew, maintenance, cleaning, fueling)30%
  • Air traffic control & airport congestion10%
  • Extreme weather0%
  • Security0%

Other airlines on SLC to LAX

Full SLC to LAX comparison →
Southwest Airlines on-time record across all routes →

374 Southwest Airlines flights tracked on this route; 1 cancelled, 0 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.