Best Time to Fly STS to LAX: On-Time Stats by Hour & Airline
Charles M. Schulz - Sonoma County → Los Angeles International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.0% of Santa Rosa (STS) to Los Angeles (LAX) flights arrived on time (726 scheduled flights). That is 7.4 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
August has been the best month (88% on time) and Monday the weakest day of the week (77%).
2.8% of flights were cancelled, versus 1.8% nationally.
STS to LAX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 85.0% | 70 min | 2.9% | 699 |
| Alaska Airlines | Limited data | 27 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly STS to LAX
On-time arrival % by scheduled departure hour (local time), 1,476 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 92.2% | 1.9% | 52 |
| 7am–8am | 89.4% | 4.5% | 424 |
| 8am–9am | 77.2% | 2.3% | 130 |
| 10am–11am | Limited data | 19 | |
| 11am–12pm | 87.2% | 0.0% | 94 |
| 12pm–1pm | 87.0% | 0.0% | 108 |
| 1pm–2pm | Limited data | 22 | |
| 2pm–3pm | 79.4% | 0.0% | 34 |
| 3pm–4pm | 77.5% | 0.0% | 49 |
| 5pm–6pm | 81.9% | 0.0% | 94 |
| 6pm–7pm | 74.3% | 0.5% | 215 |
| 7pm–8pm | 69.0% | 0.5% | 211 |
| 8pm–9pm | Limited data | 24 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on STS to LAX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 32 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 64.8% | -17.1 pts | 0.0% | 54 |
| Summer peak (Jun 15 - Aug 15) | 83.9% | +2.0 pts | 0.4% | 281 |
| All other days | 81.9% | — | 1.9% | 1,109 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).