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Alaska Airlines flights from Ontario to Santa Rosa
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Use the filters below to find and compare flights from Ontario to Santa Rosa that are best for you.
Fly from
Fly to
Route
Depart
Return
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Tue 10/27
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Wed 10/28
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Sat 10/31
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Fri 10/23
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Mon 10/26
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Mon 10/26
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Thu 10/29
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Thu 10/22
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Sat 10/24
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
5:45 pm-7:25 pm
Nonstop1h 40m
Santa Rosa Sonoma County
Mon 10/26
3:32 pm-5:05 pm
Nonstop1h 33m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Tue 1/12
6:10 am-11:50 am
1 stop5h 40m
Santa Rosa Sonoma County
Wed 1/20
2:20 pm-6:30 pm
1 stop4h 10m
OntarioSanta Rosa
ONT Ontario - STS Santa Rosa Sonoma County
ONTSTS
Ontario
Sat 10/24
6:00 am-10:41 am
1 stop4h 41m
Santa Rosa Sonoma County
Sat 10/31
4:49 pm-10:12 pm
1 stop5h 23m
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 typical price of a round-trip flight between Ontario and Santa Rosa?
Prices are currently low for flights on this route.
Typical prices usually range from $170 to $398.The lowest price recently found on this route was $157.
What is the cheapest month to fly to Santa Rosa?
If you are unable to visit Santa Rosa during the month of February, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $127.
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 $257. 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 $402.
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 morning. Our users have found flights to Santa Rosa in the morning for as low as $283. Flights at noon are often more expensive with an average ticket price of $307.
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 is the cheapest airline that flies from Ontario to Santa Rosa Sonoma County?
Alaska Airlines, Delta, and American Airlines are the most popular carriers operating from Ontario to Santa Rosa Sonoma County
What airlines fly to Santa Rosa?
United Airlines, Frontier and Alaska Airlines are the top three most popular airlines that fly to Santa Rosa from Ontario according to our data. United Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Santa Rosa. Keep in mind that there are 10 different airlines that fly to Santa Rosa on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Santa Rosa on average per day?
1 flights are operational daily from Ontario to Santa Rosa as of October 2026. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.
How many flights depart from Ontario to Santa Rosa on average per week?
As of October 2026, 7 flights take off from Ontario and land in Santa Rosa each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
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
Frequently asked questions about flying 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 1h 40m.
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 is 1 operator available for flights from Ontario Airport to Santa Rosa Sonoma County Airport as of October 2026.
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 A321neo (20.55% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (13.01%), Boeing 737-900 Passenger/BBJ3 (winglets) (10.96%), and Boeing 737-900 (9.59%).
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 Alaska Airlines, making up 100% of the total bookings.
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 $117 | Free Cancellation | Rating 7.9 13,021 reviews |
Alaska Airlines Flights From Ontario to Santa Rosa
Alaska Airlines operates around 7 flights from Ontario to Santa Rosa every week. The average price of these flights found in the last 72 hours has been $249, but momondo users have found Alaska Airlines deals from Ontario to Santa Rosa from as low as $117 round-trip. Alaska Airlines has been scored 7.9/10 in 13,021 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.