Direct flights from Ontario to Santa Rosa

Ontario

United States

ONT

Ontario International Airport

Santa Rosa

United States

STS

Charles M. Schulz Sonoma County Airport

Ontario to Santa Rosa route overview

Ontario International Airport (ONT) serves Ontario; Charles M. Schulz Sonoma County Airport (STS) serves Santa Rosa.

The airports are 423 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from ONT to STS.

Airlines represented in the current schedule are Alaska Airlines (AS).

Published schedule dates span Sep 7, 2026 – Aug 9, 2027.

Airline alliance affiliations represented: Oneworld

Which airports serve the Ontario to Santa Rosa route?

Ontario International Airport (ONT) is the origin airport and Charles M. Schulz Sonoma County Airport (STS) is the destination airport.

How far is Santa Rosa from Ontario?

ONT and STS are approximately 423 miles apart by great-circle distance.

Are there direct flights from ONT to STS?

Yes. Roame's current schedule feed shows nonstop service from ONT to STS.

Which airlines fly from ONT to STS?

Airlines represented in the current schedule are Alaska Airlines (AS).

Which aircraft fly from ONT to STS?

Aircraft listed in the current schedule include Embraer 175 (short wing) (E75) and JET.