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Cheap flights from Ontario to Santa Rosa from C$ 273
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STS
5 Aug — 12 Aug1
Round-trip
1 adult
Economy
Cheap flight deals from Ontario to Santa Rosa
Keep the following information in mind while searching for Ontario to Santa Rosa flight deals. Data was last updated 31 July 2025.
Find flight deals from Ontario to Santa Rosa
Cheapest flights from Ontario to Santa RosaExplore the most affordable flight options available from Ontario to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
Explore the most affordable flight options available from Ontario to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
Thu 4/910:40 a.m.YYZ - STS
1 stop16h 19mMultiple Airlines
Mon 8/97:03 a.m.STS - YYZ
1 stop11h 47mMultiple Airlines
Deal found 31/7C$ 524
Tue 16/96:49 a.m.YYZ - STS
2 stops11h 59mAmerican Airlines
Wed 24/912:25 p.m.STS - YYZ
1 stop21h 05mAmerican Airlines
Deal found 30/7C$ 564
Sat 4/104:45 p.m.YYZ - STS
1 stop8h 21mAlaska Airlines
Tue 14/107:05 a.m.STS - YYZ
1 stop28h 55mAlaska Airlines
Deal found 28/7C$ 596
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Ontario to Santa Rosa that are best for you.
Fly from
Ontario
Fly to
Santa Rosa
Route
Depart
Return
Price
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Thu 4/9
10:40 a.m.-11:59 p.m.
1 stop16h 19m
Santa Rosa Sonoma County
Mon 8/9
7:03 a.m.-9:50 p.m.
1 stop11h 47m
C$ 524
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Tue 16/9
6:49 a.m.-3:48 p.m.
2 stops11h 59m
Santa Rosa Sonoma County
Wed 24/9
4:19 p.m.-10:59 a.m.
2 stops15h 40m
C$ 564
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Sat 4/10
4:45 p.m.-10:06 p.m.
1 stop8h 21m
Santa Rosa Sonoma County
Tue 14/10
7:05 a.m.-3:00 p.m.
1 stop28h 55m
C$ 596
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Thu 4/9
10:40 a.m.-11:59 p.m.
1 stop16h 19m
C$ 273
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Thu 11/9
6:49 a.m.-11:55 a.m.
1 stop8h 06m
C$ 327
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Fri 12/9
4:45 p.m.-8:23 p.m.
1 stop30h 38m
C$ 411
HamiltonSanta Rosa
YHM - STS
YHMSTS
Hamilton
Thu 4/9
6:00 a.m.-11:50 p.m.
2 stops20h 50m
C$ 415
Best time to book a flight from Ontario to Santa Rosa
Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Santa Rosa
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Santa Rosa
Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated 31 July 2025.
See what other customers who have flown with Alaska Airlines and American Airlines from Ontario to Santa Rosa have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Food
7.1
Overall
8.0
Crew
8.5
Boarding
8.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.8
Food
7.1
Overall
8.0
Crew
8.5
Boarding
8.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.8
Food
7.1
Overall
8.0
Crew
8.5
Boarding
8.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Ontario to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Santa Rosa
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How does Cheapflights help users find flights from Ontario to Santa Rosa?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Santa Rosa. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Ontario to Santa Rosa?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Santa Rosa for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Ontario to Santa Rosa with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Santa Rosa, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Ontario to Santa Rosa become cheaper?
Of course! You can now track prices for flights from Ontario to Santa Rosa and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.