Cheap flights from Ontario to Santa Rosa from $78
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Santa Rosa departing on 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to San Francisco
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Alaska Airlines flights from Ontario to Santa Rosa
Our best Alaska Airlines deals on Ontario to Santa Rosa flight tickets
American Airlines flights from Ontario to Santa Rosa
Our best American Airlines deals on Ontario to Santa Rosa flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Ontario to Santa Rosa
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Santa Rosa?
Our data shows that Tuesday is the least expensive day to fly to Santa Rosa. Tickets to fly out on this day can be as low as $221. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $316.
What is the cheapest time of day to depart on your flight to Santa Rosa?
Our data shows that the cheapest Ontario to Santa Rosa flights are usually those with departure times in the afternoon. Our users have found flights to Santa Rosa in the afternoon for as low as $246. Flights at noon are often more expensive with an average ticket price of $277.
What is the cheapest Ontario to Santa Rosa Sonoma County flight route?
Fly from Ontario to Santa Rosa Sonoma County for the best Ontario - Santa Rosa Sonoma County flight prices
What cabin class options are available on Ontario to Santa Rosa Sonoma County flights?
There are 1 cabin classes available to choose from on Ontario to Santa Rosa Sonoma County flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Santa Rosa Sonoma County?
American Airlines and Alaska Airlines are the most popular carriers operating from Ontario to Santa Rosa Sonoma County
What airlines fly to Santa Rosa?
Frontier, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Santa Rosa from Ontario according to our data. Frontier is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Santa Rosa. Keep in mind that there are 12 different airlines that fly to Santa Rosa on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Santa Rosa
Cheap Ontario to Santa Rosa (ONT to STS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Santa Rosa
How far is Ontario to Santa Rosa Sonoma County by plane?
There are 413.2 mi between Ontario and Santa Rosa Sonoma County. In terms of flight time, this usually takes a little over 5h 41m.
When did momondo last update prices for flights from Ontario Airport to Santa Rosa Sonoma County Airport?
Prices for flights from Ontario Airport to Santa Rosa Sonoma County Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Santa Rosa Sonoma County Airport?
There are 2 operators available for flights from Ontario Airport to Santa Rosa Sonoma County Airport as of April 2025.
How old do you have to be to fly from Ontario Airport to Santa Rosa Sonoma County Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Santa Rosa Sonoma County Airport.
What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?
The necessary travel and health documents for your Santa Rosa Sonoma County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ontario to Santa Rosa?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Santa Rosa is Airbus A319 (13.16% of total bookings). The next most popular plane models are Boeing 737-700 (13.16%), Airbus A320neo (10.53%), and Airbus A321neo (10.53%).
What is the most popular airline from Ontario to Santa Rosa?
Based on momondo bookings for flights between Ontario and Santa Rosa, the leading airline is Avelo Airlines, making up 66% of the total bookings. Other popular airlines include American Airlines with 34%.
Best airlines flying from Ontario to Santa Rosa
Compare and see reviews for airlines that fly from Ontario to Santa Rosa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $67 | Free Cancellation | Rating 7.5 74 reviews | |||
| PriceFrom $232 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Santa Rosa?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Santa Rosa. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ontario to Santa Rosa with flexible booking policies on momondo?
All flight searches from Ontario to Santa Rosa on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to Santa Rosa?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Santa Rosa.
I’m not ready to book a flight from Ontario to Santa Rosa right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Santa Rosa from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.