SLC to LAS flight delays & on-time performance
Nonstop flights from Salt Lake City International Airport to Harry Reid International Airport · 368 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SLC or LAS 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 Las Vegas (LAS) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.7% were cancelled, and 6% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (80% on time); Southwest Airlines was the least (76%).
- Departures scheduled around 6am did best (98% on time); around 8pm did worst (63%).
- Tuesday was the most reliable day to fly (86% on time) and Friday the least (72%).
- The largest source of delay minutes was late-arriving aircraft (37%).
Which airline is most on time from SLC to LAS?
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 |
| Delta Air Lines | 80% | 0.6% | 13 min | 5.9% | 1,718 |
| Frontier Airlines | 79% | 1.3% | 26 min | 9.6% | 528 |
| Southwest Airlines | 76% | 0.4% | 13 min | 5.5% | 1,444 |
| Spirit Airlines | 74% | 3.8% | 27 min | 16.0% | 52 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am98%291 flights
- 7am94%228 flights
- 8am93%172 flights
- 9am92%74 flights
- 10am81%78 flights
- 11am77%607 flights
- 12pm93%54 flights
- 1pm66%251 flights
- 2pm65%112 flights
- 3pm78%445 flights
- 4pm57%94 flights
- 5pm71%314 flights
- 6pm82%188 flights
- 7pm77%78 flights
- 8pm63%176 flights
- 9pm66%170 flights
- 10pm80%207 flights
- 11pm73%171 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%1.0% cancelled
- Tuesday86%1.0% cancelled
- Wednesday83%0.2% cancelled
- Thursday75%0.4% cancelled
- Friday72%0.9% cancelled
- Saturday85%0.4% cancelled
- Sunday74%0.9% 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 aircraft37%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion27%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)73%
- Extreme weather15%
- Air traffic control & airport congestion12%
- Security0%
SLC to LAS: common questions
- How often are SLC to LAS flights on time?
- 78% 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 Las Vegas cancelled?
- 0.7% of scheduled flights were cancelled (26 of 3,744).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 62 min behind schedule on average, and 6.4% of flights were an hour or more late.
- How long is taxi time at SLC?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to SLC — 83% 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 → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.