Los Angeles (LAX) to Las Vegas (LAS): On-Time Performance
Data through July 2026
When you fly LAX to LAS matters as much as anything else about the booking: the route swung from 86% on-time in December 2024 to just 65% in July 2024. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 73%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 23
- last 12 months
- Duration
- 1h 16m
- scheduled
- Distance
- 236 mi
Best airline from LAX to LAS
8 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 83% | 10 min | 0.6% | 3,199 |
| SkyWest Airlines | 83% | 9 min | 1.4% | 724 |
| Spirit Airlines | 82% | 14 min | 0.6% | 1,926 |
| Alaska Airlines | 79% | 10 min | 0.0% | 100 |
| Delta Air Lines | 79% | 14 min | 0.8% | 3,627 |
| Southwest Airlines | 76% | 14 min | 0.4% | 5,177 |
| American Airlines | 72% | 26 min | 0.4% | 2,418 |
| Frontier Airlines | 68% | 28 min | 1.6% | 1,214 |
Monthly on-time trend
Best time to fly from LAX to LAS
Aim for departures around 5 a.m. (97% on-time); avoid 3 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 16 min |
| Tuesdaybest | 85% | 12 min |
| Wednesday | 84% | 10 min |
| Thursday | 70% | 20 min |
| Friday | 70% | 21 min |
| Saturday | 83% | 13 min |
| Sunday | 77% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations26%
- National airspace system26%
- Weather1%
Frequently asked questions
- How often are flights from LAX to LAS delayed?
- 22% of LAX–LAS 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 16 minutes.
- Which airline is most reliable from LAX to LAS?
- United Airlines has the best on-time record on this route at 83%, based on 3,199 flights. 8 airlines flew LAX–LAS frequently enough to compare in this period.
- What is the best time of day to fly from LAX to LAS?
- Departures around 5 a.m. have the best record (97% on-time), while departures around 3 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAX to LAS?
- The scheduled LAX–LAS flight time averages 1h 16m over 236 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are LAX to LAS flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from LAX to LAS?
- July 2024 was the roughest month in this dataset, with only 65% of arrivals on time. The best was December 2024 at 86%. If your dates are flexible, that 21-point gap is worth planning around.
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Based on 18,385 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.