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Cheap flights from Ontario to San Jose, CA from C$ 225

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJC
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 December 2025.

Sat 20/126:10 a.m.YYZ - SJC
2 stops19h 32mDelta
Mon 5/110:45 p.m.SJC - YYZ
2 stops16h 08mDelta
Deal found 15/12C$ 471
Tue 30/127:45 a.m.YYZ - SJC
2 stops16h 19mDelta
Wed 7/19:50 a.m.SJC - YYZ
2 stops10h 23mDelta
Deal found 15/12C$ 518
Tue 23/129:54 a.m.YYZ - SJC
2 stops14h 40mDelta
Wed 31/125:55 a.m.SJC - YYZ
2 stops14h 25mDelta
Deal found 16/12C$ 543
Wed 24/127:30 a.m.YYZ - SJC
2 stops29h 33mAmerican Airlines
Tue 6/16:00 a.m.SJC - YYZ
1 stop7h 19mAmerican Airlines
Deal found 15/12C$ 544
Fri 26/129:54 a.m.YYZ - SJC
2 stops14h 40mDelta
Tue 6/110:45 p.m.SJC - YYZ
2 stops18h 41mDelta
Deal found 15/12C$ 552
Sun 21/126:05 a.m.YYZ - SJC
2 stops15h 30mDelta
Mon 29/125:55 a.m.SJC - YYZ
2 stops14h 25mDelta
Deal found 16/12C$ 554
Sat 20/126:10 a.m.YYZ - SJC
1 stop18h 03mAmerican Airlines
Sat 31/16:00 a.m.SJC - YYZ
1 stop7h 19mAmerican Airlines
Deal found 16/12C$ 555
Fri 19/126:10 a.m.YYZ - SJC
2 stops16h 08mDelta
Mon 29/125:55 a.m.SJC - YYZ
2 stops14h 25mDelta
Deal found 16/12C$ 569
Mon 22/129:54 a.m.YYZ - SJC
2 stops14h 10mDelta
Tue 6/110:45 p.m.SJC - YYZ
1 stop9h 23mDelta
Deal found 15/12C$ 572
Mon 22/129:54 a.m.YYZ - SJC
2 stops14h 40mDelta
Mon 29/125:55 a.m.SJC - YYZ
2 stops14h 25mDelta
Deal found 16/12C$ 591
Sat 20/126:10 a.m.YYZ - SJC
1 stop18h 03mAmerican Airlines
Wed 7/12:32 p.m.SJC - YYZ
1 stop19h 39mAmerican Airlines
Deal found 15/12C$ 592
Thu 25/126:00 a.m.YUL - SJC
2 stops18h 16mUnited Airlines
Wed 7/14:00 p.m.SJC - YUL
2 stops19h 00mUnited Airlines
Deal found 16/12C$ 1,003

Find 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 18 December 2025.

Round-trip from

C$ 331

One-way from

C$ 225

Popular in

December

Cheapest in

March

Average price

C$ 637
15/1-18/1
  • 15/1-18/1
  • 2 total stops
  • 42h 15m total
  • Ontario to San Jose
Search Deals
9/2
  • 9/2
  • 3 total stops
  • 36h 05m total
  • Ontario to San Jose
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 18 December 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

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Thu 22/1

6:45 a.m.-8:40 a.m.

3 stops28h 55m

San Jose

Thu 29/1

12:34 p.m.-7:05 a.m.

2 stops15h 31m

C$ 364

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Thu 29/1

6:45 a.m.-8:40 a.m.

2 stops28h 55m

San Jose

Thu 5/2

12:34 p.m.-7:05 a.m.

2 stops15h 31m

C$ 402

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Tue 14/4

6:00 a.m.-10:50 p.m.

3 stops19h 50m

San Jose

Sat 18/4

3:49 p.m.-9:11 a.m.

2 stops14h 22m

C$ 419

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Fri 30/1

7:27 p.m.-1:38 p.m.

2 stops21h 11m

San Jose

Fri 6/2

3:00 p.m.-5:12 p.m.

2 stops23h 12m

C$ 419

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Wed 7/1

6:10 a.m.-12:56 p.m.

1 stop9h 46m

San Jose

Thu 8/1

10:45 p.m.-5:53 p.m.

2 stops16h 08m

C$ 423

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Mon 5/1

12:21 p.m.-9:20 p.m.

1 stop11h 59m

San Jose

Tue 6/1

10:45 p.m.-4:12 p.m.

2 stops14h 27m

C$ 423

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Fri 16/1

7:27 p.m.-1:38 p.m.

2 stops21h 11m

San Jose

Fri 23/1

4:00 p.m.-2:27 p.m.

2 stops19h 27m

C$ 430

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Tue 3/2

4:45 p.m.-2:42 p.m.

1 stop24h 57m

San Jose

Wed 4/2

6:02 p.m.-3:35 p.m.

1 stop18h 33m

C$ 440

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Mon 20/4

6:25 p.m.-11:42 a.m.

1 stop20h 17m

San Jose

Tue 28/4

5:57 a.m.-11:00 p.m.

1 stop14h 03m

C$ 445

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Sat 31/1

4:45 p.m.-9:48 a.m.

1 stop20h 03m

San Jose

Sun 8/2

11:00 a.m.-3:35 p.m.

1 stop25h 35m

C$ 445

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

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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$ 198). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of C$ 333). 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 18 December 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.

How much does it cost to fly round-trip from Region of Ontario to San Jose, California?

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$ 423, United Airlines can have you in San Jose, California from Region of Ontario in 9h 46m. 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 Delta. According to our data, you can fly for as low as C$ 233. Users have also found prices from C$ 240 and C$ 241 on Air Canada and Alaska Airlines, respectively.

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

    Most travellers choose Toronto Pearson Intl - San Jose, Toronto Island - San Jose or Toronto Region of Waterloo Intl - 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$ 198). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of C$ 333). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 334AverageC$ 649FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapestC$ 349AverageC$ 557FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 352AverageC$ 551FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 387AverageC$ 484FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 391AverageC$ 746FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 393AverageC$ 611FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 470AverageC$ 567FlexibilityNo 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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