Santa Rosa (STS) to Ontario (ONT): On-Time Performance
Data through July 2026
Santa Rosa (STS) to Ontario (ONT) is a thinner route than most in this dataset — 108 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 89% arrived on time, comfortably above the national average of 78%.
- On-time
- 89%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.30
- last 12 months
- Duration
- 1h 29m
- scheduled
- Distance
- 423 mi
Best time to fly from STS to ONT
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 100% | 1 min |
| Tuesday | 73% | 12 min |
| Wednesday | 94% | 4 min |
| Thursdaybest | 100% | 0 min |
| Friday | 88% | 11 min |
| Saturday | 80% | 11 min |
| Sunday | 87% | 26 min |
Frequently asked questions
- How often are flights from STS to ONT delayed?
- 11% of STS–ONT 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 9 minutes.
- How long is the flight from STS to ONT?
- The scheduled STS–ONT flight time averages 1h 29m over 423 miles. Actual arrival times vary — flights on this route land 15+ minutes late 11% of the time.
- How often are STS to ONT flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
Explore related pages
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Related guides
Based on 108 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.