Santa Rosa (STS) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Santa Rosa (STS) to Las Vegas (LAS) is a thinner route than most in this dataset — 346 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 0.95
- last 12 months
- Duration
- 1h 40m
- scheduled
- Distance
- 454 mi
Best airline from STS to LAS
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 79% | 12 min | 0.0% | 116 |
| SkyWest Airlines | 78% | 19 min | 0.5% | 431 |
Monthly on-time trend
Best time to fly from STS to LAS
Aim for departures around 9 a.m. (91% on-time); avoid 4 p.m. departures (71%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 72% | 17 min |
| Tuesday | 80% | 18 min |
| Wednesday | 93% | 3 min |
| Thursday | 71% | 26 min |
| Friday | 62% | 34 min |
| Saturdaybest | 94% | 6 min |
| Sunday | 76% | 17 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 operations13%
- National airspace system27%
- Weather14%
Frequently asked questions
- How often are flights from STS to LAS delayed?
- 22% of STS–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 17 minutes.
- Which airline is most reliable from STS to LAS?
- Southwest Airlines has the best on-time record on this route at 79%, based on 116 flights. 2 airlines flew STS–LAS frequently enough to compare in this period.
- What is the best time of day to fly from STS to LAS?
- Departures around 9 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (71%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from STS to LAS?
- The scheduled STS–LAS flight time averages 1h 40m over 454 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are STS to LAS flights cancelled?
- 0.4% 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 STS to LAS?
- November 2025 was the roughest month in this dataset, with only 70% of arrivals on time. The best was March 2026 at 94%. If your dates are flexible, that 24-point gap is worth planning around.
Explore related pages
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Other ways to fly to Las Vegas (LAS)
Related guides
Based on 547 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.