Las Vegas (LAS) to Sacramento (SMF): On-Time Performance
Data through July 2026
When you fly LAS to SMF matters as much as anything else about the booking: the route swung from 89% on-time in November 2024 to just 69% in July 2024. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 69%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 11
- last 12 months
- Duration
- 1h 38m
- scheduled
- Distance
- 397 mi
Best airline from LAS to SMF
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 84% | 11 min | 1.9% | 482 |
| SkyWest Airlines | 84% | 16 min | 0.9% | 1,057 |
| Spirit Airlines | 83% | 12 min | 1.2% | 1,340 |
| Southwest Airlines | 79% | 12 min | 0.3% | 7,276 |
Monthly on-time trend
Best time to fly from LAS to SMF
Aim for departures around 5 a.m. (98% on-time); avoid 7 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 13 min |
| Tuesday | 86% | 9 min |
| Wednesday | 86% | 8 min |
| Thursday | 76% | 17 min |
| Friday | 73% | 17 min |
| Saturdaybest | 88% | 6 min |
| Sunday | 78% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft48%
- Airline operations35%
- National airspace system13%
- Weather5%
Frequently asked questions
- How often are flights from LAS to SMF delayed?
- 20% of LAS–SMF 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 12 minutes.
- Which airline is most reliable from LAS to SMF?
- Frontier Airlines has the best on-time record on this route at 84%, based on 482 flights. 4 airlines flew LAS–SMF frequently enough to compare in this period.
- What is the best time of day to fly from LAS to SMF?
- Departures around 5 a.m. have the best record (98% on-time), while departures around 7 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LAS to SMF?
- The scheduled LAS–SMF flight time averages 1h 38m over 397 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are LAS to SMF 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 is the worst month to fly from LAS to SMF?
- July 2024 was the roughest month in this dataset, with only 69% of arrivals on time. The best was November 2024 at 89%. If your dates are flexible, that 21-point gap is worth planning around.
Explore related pages
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Related guides
Based on 10,155 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.