Salt Lake City (SLC) to Los Angeles (LAX): On-Time Performance
Data through July 2026
Your airline choice is the single biggest lever on SLC–LAX. United Airlines arrives on time 92% of the time; Southwest Airlines trails at 78% — a 14-point spread on the exact same city pair. The route as a whole runs 86% on-time. Earlier departures help too, outperforming evening flights by 8 points.
- On-time
- 86%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 11
- last 12 months
- Duration
- 2h 6m
- scheduled
- Distance
- 590 mi
Best airline from SLC to LAX
7 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 92% | 4 min | 0.0% | 148 |
| SkyWest Airlines | 90% | 8 min | 0.0% | 1,510 |
| Frontier Airlines | 88% | 8 min | 1.4% | 652 |
| JetBlue Airways | 88% | 9 min | 0.8% | 118 |
| Delta Air Lines | 86% | 9 min | 0.5% | 5,133 |
| Spirit Airlines | 85% | 9 min | 2.0% | 198 |
| Southwest Airlines | 78% | 12 min | 0.1% | 780 |
Monthly on-time trend
Best time to fly from SLC to LAX
Aim for departures around 10 a.m. (93% on-time); avoid 1 p.m. departures (75%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 9 min |
| Tuesday | 89% | 6 min |
| Wednesdaybest | 90% | 8 min |
| Thursday | 84% | 10 min |
| Friday | 84% | 9 min |
| Saturday | 86% | 9 min |
| Sunday | 83% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft35%
- Airline operations52%
- National airspace system11%
- Weather2%
Frequently asked questions
- How often are flights from SLC to LAX delayed?
- 14% of SLC–LAX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- Which airline is most reliable from SLC to LAX?
- United Airlines has the best on-time record on this route at 92%, based on 148 flights. 7 airlines flew SLC–LAX frequently enough to compare in this period.
- What is the best time of day to fly from SLC to LAX?
- Departures around 10 a.m. have the best record (93% on-time), while departures around 1 p.m. have the worst (75%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to LAX?
- The scheduled SLC–LAX flight time averages 2h 6m over 590 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are SLC to LAX flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for SLC to LAX?
- Wednesday flights have the best record at 90% on-time. Day-of-week differences on this route are modest.
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Based on 8,540 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.