Direct (nonstop) flights from Santa Rosa to Ontario
1 airline flys nonstop from Charles M Schulz Sonoma Co (STS) to Ontario International Airport (ONT). It's 423 miles (680 km), about 1h 27m in the air. Operated by Alaska Airlines.
Alaska Airlines
Route data last updated: May 25, 2026
Airlines with non-stop flights
AS
Alaska Airlines
Alternative Routes
Other ways to fly from Santa Rosa to Ontario with one stop · direct emits 78 kg CO₂ per passenger
Looking for the return flight?
ONT → STS: Flights from Ontario to Santa RosaOther direct flights from Santa Rosa
Direct flights from Ontario (ONT)
Frequently Asked Questions
How long is the direct flight from Santa Rosa to Ontario?
A nonstop flight from Santa Rosa (STS) to Ontario (ONT) takes approximately 1 hours and 27 minutes. The distance is 423 miles (680 km).
Which airlines fly nonstop from Santa Rosa to Ontario?
Just Alaska Airlines.
Is there a nonstop flight from Santa Rosa to Ontario?
Yes. 1 airline: Alaska Airlines.
How far is Santa Rosa from Ontario?
The flight distance from Santa Rosa to Ontario is 423 miles (680 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Santa Rosa to Ontario?
At 1h 27m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Santa Rosa to Ontario?
Roughly 78 kg CO2 per passenger one-way. That's about the same as driving 390 km.
Is the return flight from Ontario to Santa Rosa also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Santa Rosa to Ontario?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Charles M Schulz Sonoma Co for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.