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San Jose

$163+ Cheap flights from Ontario to San Jose, CA (SJC)

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJC
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Ontario to San Jose

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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:10 amYYZ - SJC
2 stops19h 32mDelta
Mon 1/510:45 pmSJC - YYZ
2 stops16h 08mDelta
Deal found 12/15$342
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:45 amYYZ - SJC
2 stops16h 19mDelta
Tue 1/610:45 pmSJC - YYZ
2 stops16h 08mDelta
Deal found 12/15$376
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:54 amYYZ - SJC
2 stops15h 42mDelta
Sun 1/410:55 pmSJC - YYZ
2 stops14h 17mDelta
Deal found 12/15$394
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:30 amYYZ - SJC
2 stops29h 33mAmerican Airlines
Wed 1/711:51 amSJC - YYZ
2 stops20h 02mAmerican Airlines
Deal found 12/15$395
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:54 amYYZ - SJC
2 stops14h 40mDelta
Wed 1/710:45 pmSJC - YYZ
1 stop9h 23mDelta
Deal found 12/15$401
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:05 amYYZ - SJC
2 stops15h 30mDelta
Mon 12/295:55 amSJC - YYZ
2 stops14h 25mDelta
Deal found 12/16$402
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:10 amYYZ - SJC
1 stop18h 03mAmerican Airlines
Sat 1/316:00 amSJC - YYZ
1 stop7h 19mAmerican Airlines
Deal found 12/16$403
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:10 amYYZ - SJC
2 stops16h 08mDelta
Mon 12/295:55 amSJC - YYZ
2 stops14h 25mDelta
Deal found 12/16$413
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:54 amYYZ - SJC
2 stops14h 10mDelta
Tue 1/610:45 pmSJC - YYZ
1 stop9h 23mDelta
Deal found 12/15$415
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:54 amYYZ - SJC
2 stops15h 42mDelta
Sun 12/2810:55 pmSJC - YYZ
2 stops14h 15mDelta
Deal found 12/16$429
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:10 amYYZ - SJC
1 stop18h 03mAmerican Airlines
Wed 1/72:32 pmSJC - YYZ
1 stop19h 39mAmerican Airlines
Deal found 12/15$430
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amYUL - SJC
2 stops18h 16mUnited Airlines
Wed 1/74:00 pmSJC - YUL
2 stops19h 00mUnited Airlines
Deal found 12/16$728

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 December 18, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$240
(Kiwi.com)

One-way from

$163
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$462
Provider with most accurate pricing for Toronto (YTO)-San Jose flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-San Jose flights.
Search Deals
From Ontario to San Jose
Search Deals
One-way flight from Ontario to San Jose
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 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 2,558,603 searches. Data last updated December 18, 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 1/22

6:45 am-8:40 am

3 stops28h 55m

San Jose

Thu 1/29

12:34 pm-7:05 am

2 stops15h 31m

$264

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Tue 4/14

6:00 am-10:50 pm

3 stops19h 50m

San Jose

Sat 4/18

3:49 pm-9:11 am

2 stops14h 22m

$304

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Fri 1/30

7:27 pm-1:38 pm

2 stops21h 11m

San Jose

Fri 2/6

3:00 pm-5:12 pm

2 stops23h 12m

$304

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Sat 1/31

10:00 am-12:09 pm

1 stop29h 09m

San Jose

Sat 2/7

5:45 pm-6:43 am

2 stops33h 58m

$310

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Fri 1/16

7:27 pm-1:38 pm

2 stops21h 11m

San Jose

Fri 1/23

4:00 pm-2:27 pm

2 stops19h 27m

$312

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Sat 2/28

4:45 pm-10:59 pm

1 stop9h 14m

San Jose

Sat 3/14

7:10 pm-3:35 pm

1 stop17h 25m

$320

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Sat 1/31

4:45 pm-9:48 am

1 stop20h 03m

San Jose

Sun 2/8

11:00 am-3:35 pm

1 stop25h 35m

$323

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 1/29

6:10 am-12:56 pm

1 stop9h 46m

San Jose

Mon 2/2

6:20 am-3:59 pm

1 stop6h 39m

$324

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 1/29

4:10 pm-8:56 pm

1 stop7h 46m

San Jose

Mon 2/2

4:00 pm-9:36 am

2 stops14h 36m

$324

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 1/29

4:45 pm-9:48 am

1 stop20h 03m

San Jose

Mon 2/2

6:15 am-3:35 pm

1 stop30h 20m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 $144). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of $242). 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 December 18, 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 afternoon. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

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 2.9 mi from the center of the city.

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

    Airlines like United Airlines, Alaska Airlines, and Delta fly from Region of Ontario to San Jose, California in about 9h 14m. The time it takes to get you to your destination can typically vary by up to 10h 36m. There are 2238 mi between Region of Ontario and San Jose, California. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Region of Ontario to San Jose, California are Air Canada ($159), United Airlines ($179), and American Airlines ($185).

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

    The most popular route from Region of Ontario to San Jose, California is Toronto Pearson Intl - San Jose. You may also consider Montreal Pierre Elliott Trudeau Intl - San Jose or Toronto Island - San Jose.

  • 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 $144). Flying from Region of Ontario to San Jose, California in January is currently the most expensive (average of $242). 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 4 airlines flying from Ontario to San Jose

Discover the top 4 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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$281Average$368FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$284Average$462FlexibilityNo cancel feeOn-time67%
DeltaCheapest$307Average$405FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$316Average$470FlexibilityNo cancel feeOn-time71%

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