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Cheap flights from San Jose, CA to Ontario from C$ 294

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
26 Jul — 2 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 26 June 2026.

Sat 12/99:03 p.m.
SJC
-
YYZ
2 stops25h 02m
Multiple Airlines
Tue 29/911:05 a.m.
YYZ
-
SJC
1 stop12h 03m
Multiple Airlines
Deal found 24/6C$ 614
Fri 11/96:37 p.m.
SJC
-
YYZ
1 stop17h 37m
United Airlines
Sat 12/95:24 p.m.
YYZ
-
SJC
1 stop8h 26m
United Airlines
Deal found 21/6C$ 637
Fri 18/910:40 p.m.
SJC
-
YYZ
1 stop8h 43m
Delta
Mon 21/95:54 p.m.
YYZ
-
SJC
1 stop8h 46m
Delta
Deal found 22/6C$ 657
Mon 31/86:00 a.m.
SJC
-
YYZ
2 stops14h 10m
Delta
Wed 14/101:30 p.m.
YYZ
-
SJC
1 stop12h 28m
Delta
Deal found 23/6C$ 658
Wed 9/1212:45 p.m.
SJC
-
YYZ
1 stop6h 59m
United Airlines
Wed 6/13:00 p.m.
YYZ
-
SJC
1 stop10h 36m
United Airlines
Deal found 22/6C$ 671
Sun 30/810:20 p.m.
SJC
-
YYZ
1 stop11h 03m
Delta
Sat 17/1012:30 p.m.
YYZ
-
SJC
2 stops14h 24m
Delta
Deal found 23/6C$ 674
Thu 10/92:24 p.m.
SJC
-
YYZ
2 stops12h 21m
Multiple Airlines
Tue 15/911:05 a.m.
YYZ
-
SJC
1 stop12h 03m
Multiple Airlines
Deal found 21/6C$ 675
Sat 11/72:26 p.m.
SJC
-
YYZ
1 stop20h 31m
American Airlines
Wed 22/76:46 a.m.
YYZ
-
SJC
1 stop19h 12m
American Airlines
Deal found 23/6C$ 682
Wed 9/125:45 a.m.
SJC
-
YYZ
1 stop7h 56m
Delta
Mon 4/19:45 a.m.
YYZ
-
SJC
2 stops14h 13m
Delta
Deal found 23/6C$ 685
Fri 10/710:00 p.m.
SJC
-
YYZ
1 stop11h 23m
Delta
Mon 13/71:38 p.m.
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 25/6C$ 687
Tue 15/92:36 p.m.
SJC
-
YUL
1 stop20h 59m
American Airlines
Wed 23/93:45 p.m.
YUL
-
SJC
1 stop22h 08m
American Airlines
Deal found 22/6C$ 736
Tue 6/1012:45 p.m.
SJC
-
YUL
1 stop8h 06m
Delta
Sat 10/1012:45 p.m.
YUL
-
SJC
1 stop13h 13m
Delta
Deal found 26/6C$ 751

Find 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 26 June 2026.

Round-trip from

C$ 614

One-way from

C$ 294

Popular in

August

Cheapest in

April

Average price

C$ 603
12/9-29/9
  • 12/9-29/9
  • 3 total stops
  • 37h 05m total
  • San Jose to Ontario
Search Deals
Delta
  • Delta
  • 24/7
  • 1 total stop
  • 11h 23m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 26 June 2026.
Use the filters below to find and compare flights from San Jose to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 18/9

8:33 p.m.-11:18 a.m.

2 stops11h 45m

Toronto Pearson Intl

Mon 21/9

11:38 a.m.-9:22 p.m.

1 stop12h 44m

C$ 657
Quickest round-trip

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 17/10

2:08 p.m.-11:59 p.m.

1 stop6h 51m

Toronto Pearson Intl

Tue 20/10

5:27 p.m.-10:42 p.m.

1 stop8h 15m

C$ 671

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 4/10

6:30 a.m.-9:59 p.m.

1 stop12h 29m

Toronto Pearson Intl

Fri 16/10

6:15 a.m.-11:56 a.m.

1 stop8h 41m

C$ 671

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 11/12

7:15 a.m.-9:58 p.m.

1 stop11h 43m

Toronto Pearson Intl

Sat 9/1

6:15 a.m.-11:56 a.m.

1 stop8h 41m

C$ 671

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 3/10

6:30 a.m.-5:19 p.m.

1 stop7h 49m

Toronto Pearson Intl

Mon 12/10

1:30 p.m.-10:58 p.m.

1 stop12h 28m

C$ 671

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 9/12

9:05 a.m.-12:01 a.m.

2 stops11h 56m

Toronto Pearson Intl

Thu 7/1

5:50 p.m.-11:54 p.m.

1 stop9h 04m

C$ 685

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 9/12

5:45 a.m.-4:41 p.m.

1 stop7h 56m

Toronto Pearson Intl

Mon 4/1

9:45 a.m.-8:58 p.m.

2 stops14h 13m

C$ 685

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 2/9

6:00 a.m.-4:40 p.m.

1 stop7h 40m

Toronto Pearson Intl

Sun 6/9

11:40 a.m.-9:41 p.m.

1 stop13h 01m

C$ 687

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 14/7

12:40 p.m.-11:58 p.m.

1 stop8h 18m

Toronto Pearson Intl

Thu 16/7

6:30 a.m.-12:01 p.m.

1 stop8h 31m

C$ 687

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 27/8

6:40 a.m.-9:59 p.m.

1 stop12h 19m

Toronto Pearson Intl

Sun 6/9

11:40 a.m.-9:41 p.m.

1 stop13h 01m

C$ 687

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 206). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 718). 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.

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

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$ 671, Delta can have you in Region of Ontario from San Jose, California in 6h 51m. 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 cheapest airlines to fly from San Jose, California to Region of Ontario one-way?

    The cheapest airlines for a one-way flight from San Jose, California to Region of Ontario are American Airlines (C$ 224), United Airlines (C$ 238), and Delta (C$ 288).

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

    While some choose either San Jose - Toronto Island or San Jose - Montreal Pierre Elliott Trudeau Intl, 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, July is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 206). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 718). 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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