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Cheap flights from San Jose to Ontario from C$ 175

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
17 Jun — 24 Jun1
1 adult

Cheap flight deals from San Jose to Ontario

Keep the following information in mind while searching for San Jose to Ontario flight deals. Data was last updated 12 June 2025.

Round-trip from

C$ 407

One-way from

C$ 175

Popular in

December

Cheapest in

May

Average price

C$ 727
4/9-10/9
  • 4/9-10/9
  • 3 total stops
  • 30h 44m total
  • San Jose to Ontario
Search Deals
13/8
  • 13/8
  • 3 total stops
  • 20h 36m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from San Jose to Ontario

Cheapest flights from San Jose to Ontario
Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Thu 4/910:19 a.m.SJC - YYZ
1 stop17h 01mMultiple Airlines
Wed 10/912:00 p.m.YYZ - SJC
2 stops13h 43mMultiple Airlines
Deal found 12/6C$ 407
Sat 21/66:00 a.m.SJC - YYZ
1 stop13h 50mAmerican Airlines
Sun 29/66:49 a.m.YYZ - SJC
1 stop17h 24mAmerican Airlines
Deal found 11/6C$ 485
Wed 16/76:30 a.m.SJC - YUL
3 stops15h 07mMultiple Airlines
Wed 6/84:00 p.m.YUL - SJC
2 stops21h 36mMultiple Airlines
Deal found 9/6C$ 488
Wed 25/61:40 p.m.SJC - YYZ
1 stop6h 43mDelta
Sat 28/61:28 p.m.YYZ - SJC
1 stop12h 27mDelta
Deal found 11/6C$ 489
Wed 25/611:01 a.m.SJC - YOW
2 stops20h 20mMultiple Airlines
Wed 2/74:40 p.m.YOW - SJC
2 stops20h 26mMultiple Airlines
Deal found 11/6C$ 498
Wed 30/76:30 a.m.SJC - YHM
2 stops15h 11mMultiple Airlines
Mon 4/86:00 a.m.YHM - SJC
3 stops31h 36mMultiple Airlines
Deal found 10/6C$ 502
Wed 3/98:00 a.m.SJC - YYZ
2 stops28h 00mAlaska Airlines
Wed 10/94:45 p.m.YYZ - SJC
2 stops20h 13mAlaska Airlines
Deal found 12/6C$ 540
Sat 4/106:30 a.m.SJC - YYZ
1 stop14h 28mUnited Airlines
Sat 11/1011:00 a.m.YYZ - SJC
1 stop10h 14mUnited Airlines
Deal found 10/6C$ 587
Wed 25/611:01 a.m.SJC - YTZ
3 stops29h 36mMultiple Airlines
Sun 29/612:00 p.m.YTZ - SJC
3 stops25h 06mMultiple Airlines
Deal found 12/6C$ 606
Fri 25/711:00 p.m.SJC - YUL
2 stops16h 53mDelta
Fri 1/86:00 a.m.YUL - SJC
2 stops18h 46mDelta
Deal found 11/6C$ 721
Sun 27/74:22 p.m.SJC - YXU
3 stops33h 52mMultiple Airlines
Sun 3/86:00 a.m.YXU - SJC
3 stops33h 05mMultiple Airlines
Deal found 12/6C$ 819
Mon 25/86:00 a.m.SJC - YUL
2 stops13h 35mAmerican Airlines
Wed 3/93:44 p.m.YUL - SJC
2 stops20h 26mAmerican Airlines
Deal found 10/6C$ 857

Cheapflights Fare Finder

Customize your flight search to find flights from San Jose 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 12 June 2025.
Use the filters below to find and compare flights from San Jose to Ontario that are best for you.

Fly from

San Jose

Fly to

Ontario

Route

Depart

Return

Price

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 4/9

10:19 a.m.-6:20 a.m.

1 stop17h 01m

Toronto Pearson Intl

Wed 10/9

12:00 p.m.-10:43 p.m.

2 stops13h 43m

C$ 407

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Wed 16/7

6:30 a.m.-12:37 a.m.

3 stops15h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 6/8

4:00 p.m.-10:36 a.m.

2 stops21h 36m

C$ 488

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 25/6

1:40 p.m.-11:23 p.m.

1 stop6h 43m

Toronto Pearson Intl

Sun 29/6

11:39 a.m.-7:55 p.m.

1 stop11h 16m

C$ 489

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

Wed 25/6

11:01 a.m.-10:21 a.m.

2 stops20h 20m

Ottawa

Wed 2/7

4:40 p.m.-10:06 a.m.

2 stops20h 26m

C$ 498

San JoseHamilton

SJC - YHM

SJCYHM

San Jose

Wed 30/7

6:30 a.m.-12:41 a.m.

2 stops15h 11m

Hamilton

Mon 4/8

6:00 a.m.-10:36 a.m.

3 stops31h 36m

C$ 502

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 3/9

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

2 stops28h 00m

Toronto Pearson Intl

Wed 10/9

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

2 stops20h 13m

C$ 540

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 4/10

6:30 a.m.-11:58 p.m.

1 stop14h 28m

Toronto Pearson Intl

Sat 11/10

11:00 a.m.-6:14 p.m.

1 stop10h 14m

C$ 587

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 28/6

1:13 p.m.-12:35 p.m.

1 stop20h 22m

Toronto Pearson Intl

Sat 5/7

6:50 a.m.-12:18 p.m.

1 stop8h 28m

C$ 595

San JoseToronto

SJC - YTZ

SJCYTZ

San Jose

Wed 25/6

11:01 a.m.-7:37 p.m.

3 stops29h 36m

Toronto Island

Sun 29/6

12:00 p.m.-10:06 a.m.

3 stops25h 06m

C$ 606

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Fri 25/7

11:00 p.m.-6:53 p.m.

2 stops16h 53m

Montreal Pierre Elliott Trudeau Intl

Fri 1/8

6:00 a.m.-9:46 p.m.

2 stops18h 46m

C$ 721

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 45 results
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Best time to book a flight from San Jose to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Jose 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 San Jose to Ontario

What is the cheapest month to book a flight from San Jose to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 255). 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.

What is the cheapest time of day to fly from SJC to ON?

Find hourly flight availability from San Jose to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

When flying from San Jose to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 12 June 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from San Jose to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
WestJet
7.2
Good
2,868 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Related info for your journey

Find useful and relevant information for your journey from San Jose 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 San Jose to Ontario?

    For a flight from San Jose to Ontario, you will be flying from San Jose. San Jose (SJC) is just 4.6 km from the centre of the city.

  • What are the cheapest airlines to fly from San Jose to Region of Ontario one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as C$ 206. Users have also found prices from C$ 213 and C$ 254 on Delta and Air Canada, respectively.

  • What are the most popular routes from San Jose to Region of Ontario?

    While some choose either San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Ottawa, San Jose - Toronto Pearson Intl is the most popular route from San Jose to Region of Ontario.

  • Can I find deals for flights from San Jose to Ontario that include hotel bookings?

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

  • How can I find direct flights from San Jose to Ontario?

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

  • Can I find deals for business class flights from San Jose to Ontario?

    Yes. Cheapflights offers flight deals from San Jose 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 San Jose to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 255). 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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Alternative routes for San Jose to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Jose to Ontario

Discover the top airline that operate flights from San Jose to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 257AverageC$ 679FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Jose to Ontario?

When you search for this flight from San Jose to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Jose to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Jose.

Can Cheapflights find flights from San Jose to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from San Jose? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Jose to Ontario become cheaper?

Yes! Start tracking prices for San Jose to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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