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Cheap flights from Santa Rosa to Ontario from C$ 294

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
STS — YYZ
27 Apr — 4 May1
1 adult

Cheap flight deals from Santa Rosa to Ontario

Keep the following information in mind while searching for Santa Rosa to Ontario flight deals. Data was last updated 22 April 2025.

Round-trip from

C$ 663

One-way from

C$ 294

Popular in

December

Cheapest in

February

Average price

C$ 541
American Airlines
  • American Airlines
  • 17/6-25/6
  • 2 total stops
  • 15h 21m total
  • Santa Rosa to Ontario
Search Deals
American Airlines
  • American Airlines
  • 15/7
  • 1 total stop
  • 7h 35m total
  • Santa Rosa to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Santa Rosa to Ontario

Cheapest flights from Santa Rosa to Ontario
Explore the most affordable flight options available from Santa Rosa to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 April 2025.

Tue 17/612:30 p.m.STS - YYZ
1 stop7h 20mAmerican Airlines
Wed 25/66:49 a.m.YYZ - STS
1 stop8h 01mAmerican Airlines
Deal found 22/4C$ 663
Mon 22/97:00 a.m.STS - YYZ
1 stop29h 00mAlaska Airlines
Tue 14/104:45 p.m.YYZ - STS
1 stop8h 13mAlaska Airlines
Deal found 21/4C$ 909

Cheapflights Fare Finder

Customize your flight search to find flights from Santa Rosa to Ontario 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 22 April 2025.
Use the filters below to find and compare flights from Santa Rosa to Ontario that are best for you.

Fly from

Santa Rosa

Fly to

Ontario

Route

Depart

Return

Price

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Tue 17/6

12:30 p.m.-10:50 p.m.

1 stop7h 20m

Toronto Pearson Intl

Wed 25/6

6:49 a.m.-11:50 a.m.

1 stop8h 01m

C$ 663

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Mon 22/9

7:00 a.m.-3:00 p.m.

1 stop29h 00m

Toronto Pearson Intl

Tue 14/10

4:45 p.m.-9:58 p.m.

1 stop8h 13m

C$ 909

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Tue 15/7

12:20 p.m.-10:55 p.m.

1 stop7h 35m

C$ 294

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Mon 14/7

10:00 a.m.-9:02 a.m.

2 stops20h 02m

C$ 329

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Sat 12/7

12:29 p.m.-11:35 a.m.

2 stops20h 06m

C$ 547

Santa RosaToronto

STS - YYZ

STSYYZ

Santa Rosa Sonoma County

Fri 18/7

8:01 p.m.-3:00 p.m.

1 stop15h 59m

C$ 573

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Best time to book a flight from Santa Rosa to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Santa Rosa 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 Santa Rosa to Ontario

What is the cheapest month to book a flight from Santa Rosa to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Region of Ontario (average of C$ 167). Flying from Santa Rosa to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 22 April 2025.
Alaska Airlines
8.0
Very good
9,906 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,906 reviews
Check prices

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santa Rosa to Ontario?

    For a flight from Santa Rosa to Ontario, you will be flying from Sonoma County. Santa Rosa Sonoma County (STS) is just 11.5 km from the centre of the city.

  • What are the most popular routes from Santa Rosa to Region of Ontario?

    The most popular route from Santa Rosa to Region of Ontario is Santa Rosa Sonoma County - Toronto Region of Waterloo Intl. You may also consider Santa Rosa Sonoma County - Sudbury or Santa Rosa Sonoma County - Montreal Pierre Elliott Trudeau Intl.

  • Can I find deals for flights from Santa Rosa to Ontario that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Ontario.

  • Can I find deals for business class flights from Santa Rosa to Ontario?

    Yes. Cheapflights offers flight deals from Santa Rosa to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Santa Rosa to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Region of Ontario (average of C$ 167). Flying from Santa Rosa to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Santa Rosa to Ontario?

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Can Cheapflights notify me if prices for flights from Santa Rosa to Ontario become cheaper?

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