OnTimeRoutes
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Delta Air Lines SLC to LAX on-time performance

Delta Air Lines nonstop flights from Salt Lake City to Los Angeles · Aug 2025 – Jul 2026

On-time arrivals
85%
arrived < 15 min late
Cancelled
0.4%
11 flights
Avg arrival delay
9 min
51 min when late
Rank on route
#5 of 6
route average 86% on time

Key facts

  • Delta Air Lines flights on SLC to LAX arrived on time 85% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 4% arrived an hour or more late.
  • That ranks #5 of 6 airlines on this route, which averaged 86% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (51%).

On-time trend by month

60%80%100%July 2025: 81.6% on time, 0.0% cancelledJul ’25August 2025: 90.8% on time, 0.0% cancelledAug ’25September 2025: 86.3% on time, 0.0% cancelledSep ’25October 2025: 86.6% on time, 0.0% cancelledOct ’25November 2025: 88.7% on time, 1.0% cancelledNov ’25December 2025: 85.5% on time, 2.4% cancelledDec ’25January 2026: 82.8% on time, 0.5% cancelledJan ’26February 2026: 83.7% on time, 0.0% cancelledFeb ’26March 2026: 85.8% on time, 0.9% cancelledMar ’26April 2026: 84.0% on time, 0.0% cancelledApr ’26May 2026: 84.9% on time, 0.0% cancelledMay ’26June 2026: 84.1% on time, 0.0% cancelledJun ’26July 2026: 78.3% on time, 0.5% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)51%
  • Late-arriving aircraft31%
  • Air traffic control & airport congestion14%
  • Extreme weather4%
  • Security0%

Other airlines on SLC to LAX

Full SLC to LAX comparison →
Delta Air Lines on-time record across all routes →

2,455 Delta Air Lines flights tracked on this route; 11 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.