SLC to LAX flight delays & on-time performance
Nonstop flights from Salt Lake City International Airport to Los Angeles International Airport · 590 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SLC or LAX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Salt Lake City (SLC) to Los Angeles (LAX) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 4% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (90% on time); Southwest Airlines was the least (82%).
- Departures scheduled around 4pm did best (94% on time); around 8pm did worst (74%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (83%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (49%).
Which airline is most on time from SLC to LAX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 92% | 0.0% | 4 min | 1.4% | 148 |
| Spirit Airlines | 91% | 4.3% | 3 min | 0.0% | 23 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 90% | 0.0% | 8 min | 3.6% | 721 |
| Frontier Airlines | 89% | 1.3% | 9 min | 4.1% | 470 |
| Delta Air Lines | 85% | 0.4% | 9 min | 3.6% | 2,455 |
| Southwest Airlines | 82% | 0.3% | 9 min | 3.2% | 374 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am91%590 flights
- 8am90%193 flights
- 9am92%439 flights
- 10am93%131 flights
- 11am88%440 flights
- 12pm84%161 flights
- 1pm82%118 flights
- 2pm86%106 flights
- 3pm80%430 flights
- 4pm94%249 flights
- 5pm85%458 flights
- 6pm69%63 flights
- 7pm96%54 flights
- 8pm74%341 flights
- 9pm88%147 flights
- 10pm85%269 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%0.6% cancelled
- Tuesday87%0.4% cancelled
- Wednesday90%0.2% cancelled
- Thursday86%0.2% cancelled
- Friday85%0.5% cancelled
- Saturday89%0.2% cancelled
- Sunday83%1.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)49%
- Late-arriving aircraft35%
- Air traffic control & airport congestion13%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)79%
- Extreme weather21%
- Air traffic control & airport congestion0%
- Security0%
SLC to LAX: common questions
- How often are SLC to LAX flights on time?
- 86% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Salt Lake City to Los Angeles cancelled?
- 0.5% of scheduled flights were cancelled (19 of 4,191).
- How long are typical delays?
- Across all flights the average arrival delay was 8 min (early arrivals count as zero). Flights that were late arrived 55 min behind schedule on average, and 3.5% of flights were an hour or more late.
- How long is taxi time at SLC?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAX to SLC — 88% on time
More flights from Salt Lake City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SLC → LAX, nonstop flights by US airlines that report to the DOT. How we calculate this.