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Cheap flights from Ontario to San Jose, CA from C$ 248

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJC
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to San Jose

Keep the following information in mind while searching for Ontario to San Jose flight deals. Data was last updated 6 November 2025.

Round-trip from

C$ 420

One-way from

C$ 248

Popular in

August

Cheapest in

March

Average price

C$ 545
United Airlines
  • United Airlines
  • 24/2-25/2
  • 4 total stops
  • 36h 42m total
  • Ontario to San Jose
Search Deals
United Airlines
  • United Airlines
  • 9/12
  • 2 total stops
  • 14h 42m total
  • Ontario to San Jose
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Ontario to San Jose

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to San Jose
Explore the most affordable flight options available from Ontario to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Thu 4/1212:23 p.m.YYZ - SJC
1 stop11h 18mDelta
Mon 11/56:45 a.m.SJC - YYZ
1 stop12h 15mDelta
Deal found 5/11C$ 449
Tue 9/123:38 p.m.YYZ - SJC
2 stops11h 15mDelta
Mon 18/55:05 p.m.SJC - YYZ
2 stops12h 50mDelta
Deal found 5/11C$ 450
Wed 10/129:00 a.m.YYZ - SJC
2 stops15h 27mUnited Airlines
Sat 23/57:00 a.m.SJC - YYZ
1 stop12h 44mUnited Airlines
Deal found 5/11C$ 451
Thu 4/129:52 a.m.YYZ - SJC
2 stops11h 26mDelta
Tue 9/129:50 a.m.SJC - YYZ
2 stops10h 37mDelta
Deal found 3/11C$ 453
Sat 6/1212:23 p.m.YYZ - SJC
1 stop13h 32mDelta
Sat 9/57:00 a.m.SJC - YYZ
2 stops14h 04mDelta
Deal found 5/11C$ 461
Thu 11/127:44 a.m.YYZ - SJC
2 stops15h 57mDelta
Fri 22/55:45 a.m.SJC - YYZ
2 stops14h 13mDelta
Deal found 5/11C$ 484
Wed 3/1212:23 p.m.YYZ - SJC
1 stop13h 32mDelta
Sat 9/55:45 a.m.SJC - YYZ
1 stop8h 00mDelta
Deal found 5/11C$ 487
Thu 4/124:45 p.m.YYZ - SJC
1 stop9h 14mAlaska Airlines
Tue 9/126:18 a.m.SJC - YYZ
1 stop30h 17mAlaska Airlines
Deal found 3/11C$ 492
Fri 5/1212:13 p.m.YYZ - SJC
2 stops14h 40mDelta
Sat 16/55:45 a.m.SJC - YYZ
1 stop8h 00mDelta
Deal found 5/11C$ 499
Wed 3/1212:23 p.m.YYZ - SJC
2 stops13h 33mDelta
Fri 8/59:05 a.m.SJC - YYZ
2 stops11h 59mDelta
Deal found 5/11C$ 508
Sun 7/1212:23 p.m.YYZ - SJC
1 stop13h 32mDelta
Sat 9/55:05 p.m.SJC - YYZ
2 stops15h 22mDelta
Deal found 5/11C$ 516
Wed 3/1212:23 p.m.YYZ - SJC
1 stop13h 32mDelta
Fri 15/56:45 a.m.SJC - YYZ
1 stop12h 15mDelta
Deal found 5/11C$ 519

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to San Jose 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 6 November 2025.
Use the filters below to find and compare flights from Ontario to San Jose that are best for you.

Fly from

Ontario

Fly to

San Jose

Route

Depart

Return

Price

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Tue 24/2

7:30 p.m.-1:41 p.m.

2 stops21h 11m

San Jose

Wed 25/2

3:55 p.m.-10:26 a.m.

2 stops15h 31m

C$ 420

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Tue 9/12

12:23 p.m.-8:41 p.m.

1 stop11h 18m

San Jose

Tue 12/5

10:56 p.m.-8:55 a.m.

1 stop6h 59m

C$ 449

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Tue 16/12

12:23 p.m.-10:55 p.m.

1 stop13h 32m

San Jose

Sun 24/5

10:56 p.m.-8:55 a.m.

1 stop6h 59m

C$ 449

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 27/11

6:30 a.m.-6:21 p.m.

2 stops14h 51m

San Jose

Mon 1/12

6:25 a.m.-9:59 p.m.

1 stop12h 34m

C$ 449

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 4/12

12:23 p.m.-10:55 p.m.

1 stop13h 32m

San Jose

Wed 10/12

7:45 p.m.-8:53 a.m.

2 stops10h 08m

C$ 449

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Mon 8/12

12:23 p.m.-10:55 p.m.

1 stop13h 32m

San Jose

Tue 12/5

12:45 p.m.-12:04 a.m.

1 stop8h 19m

C$ 449

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 11/12

7:44 a.m.-8:41 p.m.

2 stops15h 57m

San Jose

Mon 25/5

5:05 p.m.-8:55 a.m.

2 stops12h 50m

C$ 450

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Fri 5/12

6:05 a.m.-1:16 p.m.

2 stops10h 11m

San Jose

Sun 10/5

5:45 a.m.-10:58 p.m.

2 stops14h 13m

C$ 450

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Fri 5/12

7:40 a.m.-7:18 p.m.

2 stops14h 38m

San Jose

Fri 8/5

6:45 a.m.-10:00 p.m.

1 stop12h 15m

C$ 450

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Mon 8/12

12:23 p.m.-10:55 p.m.

1 stop13h 32m

San Jose

Sun 17/5

5:45 a.m.-10:58 p.m.

2 stops14h 13m

C$ 450

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to San Jose

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

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

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to San Jose, California (average of C$ 203). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of C$ 358). 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 ON to SJC?

Find hourly flight availability from Ontario to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 November 2025.

A simple way to save on the total cost of your ticket is to fly from Region of Ontario to San Jose, California in the evening. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Region of Ontario to San Jose, California?

Use this chart to determine the cheapest time to fly round-trip from Ontario to San Jose. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to San Jose, California flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

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

  • How long is the flight from Region of Ontario to San Jose, California?

    For as low as C$ 449, United Airlines can have you in San Jose, California from Region of Ontario in 11h 18m. The distance from Region of Ontario to San Jose, California is about 3602 km. This flight may include one or multiple stops.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as C$ 248. Users have also found prices from C$ 265 and C$ 467 on Delta and Porter Airlines, respectively.

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

    Most travellers choose Toronto Pearson Intl - San Jose, Montreal Pierre Elliott Trudeau Intl - San Jose or Ottawa - San Jose when deciding on the best route from Region of Ontario to San Jose, California.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to San Jose, California (average of C$ 203). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of C$ 358). 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 Ontario to San Jose

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Top 7 airlines flying from Ontario to San Jose

Discover the top 7 airlines that operate flights from Ontario to San Jose. 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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 342AverageC$ 693FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapestC$ 358AverageC$ 573FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 400AverageC$ 561FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 400AverageC$ 798FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 403AverageC$ 617FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 406AverageC$ 495FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 498AverageC$ 595FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Ontario to San Jose flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to San Jose.

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

Yes, we can. To see specific flights from Ontario to San Jose with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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