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Cheap flights from San Jose, CA to Ontario from C$ 184

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

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 29 October 2025.

Round-trip from

C$ 415

One-way from

C$ 184

Popular in

November

Cheapest in

March

Average price

C$ 655
14/12-14/1
  • 14/12-14/1
  • 3 total stops
  • 43h 46m total
  • San Jose to Ontario
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14/12
  • 14/12
  • 1 total stop
  • 12h 20m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from San Jose to Ontario

Enter your travel dates to find the best prices.

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 29 October 2025.

Sun 14/123:27 p.m.SJC - YYZ
1 stop12h 20mMultiple Airlines
Wed 14/11:30 p.m.YYZ - SJC
2 stops31h 26mMultiple Airlines
Deal found 27/10C$ 415
Sun 7/123:27 p.m.SJC - YYZ
1 stop11h 53mMultiple Airlines
Tue 16/127:45 a.m.YYZ - SJC
2 stops14h 10mMultiple Airlines
Deal found 28/10C$ 475
Sat 6/125:50 p.m.SJC - YYZ
1 stop18h 45mMultiple Airlines
Wed 14/11:30 p.m.YYZ - SJC
2 stops31h 26mMultiple Airlines
Deal found 26/10C$ 503
Tue 18/116:13 p.m.SJC - YYZ
1 stop18h 22mAlaska Airlines
Sat 22/114:45 p.m.YYZ - SJC
1 stop10h 13mAlaska Airlines
Deal found 28/10C$ 534
Tue 18/114:48 p.m.SJC - YYZ
1 stop19h 47mAlaska Airlines
Mon 24/114:45 p.m.YYZ - SJC
1 stop10h 13mAlaska Airlines
Deal found 28/10C$ 541
Tue 18/116:30 a.m.SJC - YYZ
1 stop14h 29mUnited Airlines
Thu 27/119:00 a.m.YYZ - SJC
1 stop9h 33mUnited Airlines
Deal found 28/10C$ 548
Sat 6/1211:49 a.m.SJC - YYZ
2 stops24h 46mAlaska Airlines
Sat 13/124:45 p.m.YYZ - SJC
1 stop9h 14mAlaska Airlines
Deal found 27/10C$ 555
Wed 19/112:39 p.m.SJC - YYZ
1 stop21h 56mAlaska Airlines
Mon 24/114:45 p.m.YYZ - SJC
1 stop10h 13mAlaska Airlines
Deal found 28/10C$ 556
Tue 18/118:45 a.m.SJC - YYZ
2 stops12h 14mUnited Airlines
Mon 24/116:10 a.m.YYZ - SJC
1 stop9h 08mUnited Airlines
Deal found 28/10C$ 562
Mon 10/116:30 a.m.SJC - YOW
1 stop11h 48mUnited Airlines
Fri 14/115:14 p.m.YOW - SJC
1 stop8h 16mUnited Airlines
Deal found 27/10C$ 699
Tue 9/125:45 a.m.SJC - YUL
2 stops15h 02mDelta
Tue 16/129:35 a.m.YUL - SJC
2 stops16h 20mDelta
Deal found 28/10C$ 803
Mon 1/128:00 a.m.SJC - YUL
1 stop12h 45mMultiple Airlines
Thu 11/126:45 a.m.YUL - SJC
2 stops34h 47mMultiple Airlines
Deal found 27/10C$ 826

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 29 October 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

Tue 24/2

3:55 p.m.-4:02 p.m.

2 stops21h 07m

Toronto Pearson Intl

Wed 25/2

7:40 p.m.-1:41 p.m.

2 stops21h 01m

C$ 537

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 5/12

6:18 a.m.-3:35 p.m.

1 stop30h 17m

Toronto Pearson Intl

Mon 8/12

4:45 p.m.-10:59 p.m.

1 stop9h 14m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 20/11

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

1 stop12h 34m

Toronto Pearson Intl

Sat 22/11

12:25 p.m.-10:56 p.m.

1 stop13h 31m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 5/12

8:00 a.m.-3:35 p.m.

1 stop28h 35m

Toronto Pearson Intl

Wed 10/12

4:45 p.m.-10:14 a.m.

1 stop20h 29m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 18/11

6:30 a.m.-11:59 p.m.

1 stop14h 29m

Toronto Pearson Intl

Wed 26/11

5:30 p.m.-10:28 p.m.

1 stop7h 58m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 4/12

10:25 p.m.-11:07 a.m.

1 stop9h 42m

Toronto Pearson Intl

Tue 9/12

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

1 stop11h 18m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 4/12

6:35 a.m.-9:58 p.m.

1 stop12h 23m

Toronto Pearson Intl

Sun 7/12

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

1 stop13h 32m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 5/12

12:55 p.m.-11:59 p.m.

1 stop8h 04m

Toronto Pearson Intl

Sun 7/12

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

1 stop13h 32m

C$ 548

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 19/11

2:39 p.m.-3:35 p.m.

1 stop21h 56m

Toronto Pearson Intl

Mon 24/11

4:45 p.m.-11:58 p.m.

1 stop10h 13m

C$ 556

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 24/11

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

1 stop12h 34m

Toronto Pearson Intl

Thu 27/11

6:30 a.m.-7:22 p.m.

2 stops15h 52m

C$ 562

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 60 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, California to Region of Ontario?

Currently, February is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 177). Flying from San Jose, California to Region of Ontario in August is currently the most expensive (average of C$ 284). 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 29 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 61% on flights from San Jose, California to Region of Ontario by exploring options for tickets in the afternoon.

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.

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

    For as low as C$ 548, United Airlines can have you in Region of Ontario from San Jose, California in 12h 34m. The distance between San Jose, California and Region of Ontario is about 3602 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

    Currently, February is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 177). Flying from San Jose, California to Region of Ontario in August is currently the most expensive (average of C$ 284). 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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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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