Best Time to Fly STS to SNA: On-Time Stats by Hour & Airline
Charles M. Schulz - Sonoma County → John Wayne Airport-Orange County
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.0% of Santa Rosa (STS) to Santa Ana (SNA) flights arrived on time (745 scheduled flights). That is 2.3 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
May has been the best month (84% on time) and Friday the weakest day of the week (70%).
0.8% of flights were cancelled, versus 1.8% nationally.
STS to SNA 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 | 80.0% | 77 min | 0.8% | 745 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly STS to SNA
On-time arrival % by scheduled departure hour (local time), 1,430 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 76.9% | 0.0% | 52 |
| 9am–10am | 74.6% | 1.3% | 232 |
| 10am–11am | 75.3% | 0.0% | 275 |
| 11am–12pm | 79.3% | 0.6% | 170 |
| 1pm–2pm | 69.7% | 0.0% | 33 |
| 2pm–3pm | 77.6% | 0.6% | 350 |
| 3pm–4pm | 74.8% | 1.2% | 173 |
| 4pm–5pm | 84.4% | 0.0% | 90 |
| 5pm–6pm | 85.7% | 0.0% | 49 |
| 7pm–8pm | Limited data | 6 | |
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 SNA
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) | 60.6% | -18.0 pts | 0.0% | 33 |
| Christmas & New Year (Dec 20 - Jan 3) | 63.9% | -14.7 pts | 2.7% | 74 |
| Summer peak (Jun 15 - Aug 15) | 76.9% | -1.7 pts | 0.4% | 243 |
| All other days | 78.6% | — | 0.5% | 1,080 |
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).