LAS to SLC flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Salt Lake City International Airport · 368 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Salt Lake City (SLC) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 5% arrived an hour or more late.
- Frontier Airlines was the most punctual airline here (90% on time); Southwest Airlines was the least (76%).
- Departures scheduled around 6am did best (95% on time); around 8pm did worst (60%).
- Saturday was the most reliable day to fly (88% on time) and Friday the least (78%).
- The largest source of delay minutes was late-arriving aircraft (61%).
Which airline is most on time from LAS to SLC?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 100% | 0.0% | 0 min | 0.0% | 2 |
| Frontier Airlines | 90% | 1.3% | 9 min | 4.8% | 528 |
| Delta Air Lines | 86% | 0.6% | 11 min | 4.1% | 1,717 |
| Spirit Airlines | 82% | 3.8% | 23 min | 12.0% | 52 |
| Southwest Airlines | 76% | 0.5% | 13 min | 5.9% | 1,445 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am95%466 flights
- 7am90%292 flights
- 8am91%197 flights
- 9am95%96 flights
- 10am90%372 flights
- 11am90%106 flights
- 12pm85%137 flights
- 1pm82%449 flights
- 2pm77%137 flights
- 3pm81%162 flights
- 4pm74%146 flights
- 5pm74%412 flights
- 6pm68%87 flights
- 7pm80%383 flights
- 8pm60%114 flights
- 9pm81%42 flights
- 10pm64%132 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.9% cancelled
- Tuesday87%0.6% cancelled
- Wednesday88%0.2% cancelled
- Thursday80%0.5% cancelled
- Friday78%0.7% cancelled
- Saturday88%0.4% cancelled
- Sunday78%1.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion10%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)67%
- Air traffic control & airport congestion22%
- Extreme weather11%
- Security0%
LAS to SLC: common questions
- How often are LAS to SLC flights on time?
- 83% 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 Las Vegas to Salt Lake City cancelled?
- 0.7% of scheduled flights were cancelled (27 of 3,744).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 60 min behind schedule on average, and 5.0% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to LAS — 78% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.