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Cheap flights from San Jose, CA to Ontario from C$ 212

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
11 Sep — 18 Sep1
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 12 August 2026.

Tue 1/96:10 a.m. -
1 stop9h 24m
Tue 8/911:38 a.m. -
1 stop12h 44m
Deal found 7/8C$ 506
Sat 10/106:11 p.m. -
2 stops11h 38m
Wed 21/105:49 p.m. -
1 stop7h 06m
Deal found 7/8C$ 518
Tue 13/107:00 a.m. -
2 stops12h 56m
Tue 20/106:30 a.m. -
1 stop9h 09m
Deal found 8/8C$ 520
Tue 8/121:00 p.m. -
1 stop7h 59m
Wed 13/112:25 p.m. -
1 stop11h 33m
Deal found 11/8C$ 521
Sat 19/94:24 p.m. -
2 stops14h 59m
Fri 25/96:10 p.m. -
2 stops8h 30m
Deal found 7/8C$ 522
Fri 11/96:40 a.m. -
1 stop12h 19m
Sat 19/911:38 a.m. -
1 stop12h 44m
Deal found 10/8C$ 525
Sat 26/96:19 p.m. -
2 stops11h 34m
Sat 3/1012:25 p.m. -
2 stops12h 41m
Deal found 7/8C$ 527
Sun 27/910:47 p.m. -
1 stop28h 52m
Sat 3/106:00 a.m. -
2 stops12h 44m
Deal found 7/8C$ 529
Sat 29/86:00 a.m. -
2 stops14h 10m
Tue 29/96:15 a.m. -
1 stop9h 12m
Deal found 10/8C$ 533
Wed 16/96:00 a.m. -
1 stop7h 44m
Sun 20/912:25 p.m. -
1 stop11h 16m
Deal found 11/8C$ 540
Sat 29/812:46 p.m. -
1 stop8h 06m
Wed 2/97:00 a.m. -
1 stop8h 27m
Deal found 7/8C$ 644
Sat 12/96:30 a.m. -
1 stop7h 12m
Sat 19/912:15 p.m. -
1 stop13h 40m
Deal found 9/8C$ 652

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 12 August 2026.

Round-trip from

C$ 506

One-way from

C$ 212

Popular in

August

Cheapest in

April

Average price

C$ 825
Delta
  • Delta
  • 1/9-8/9
  • 2 total stops
  • 22h 08m total
  • San Jose to Ontario
Search Deals
Delta
  • Delta
  • 4/11
  • 1 total stop
  • 7h 48m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 12 August 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 San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Sun 11/10

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

1 stop12h 29m

Toronto Pearson Intl

Wed 21/10

5:49 p.m.-9:55 p.m.

1 stop7h 06m

C$ 525

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Sat 12/9

6:40 a.m.-10:59 p.m.

2 stops13h 19m

Toronto Pearson Intl

Sat 19/9

6:15 a.m.-3:44 p.m.

2 stops12h 29m

C$ 527

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Fri 11/9

6:19 p.m.-10:23 a.m.

2 stops13h 04m

Toronto Pearson Intl

Sat 19/9

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

1 stop12h 44m

C$ 539

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Sat 26/9

5:45 p.m.-8:53 a.m.

2 stops12h 08m

Toronto Pearson Intl

Sat 3/10

4:05 p.m.-10:06 p.m.

2 stops9h 01m

C$ 542
Quickest round-trip

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Sat 12/12

6:30 a.m.-5:05 p.m.

1 stop7h 35m

Toronto Pearson Intl

Thu 14/1

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

1 stop8h 41m

C$ 545

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Tue 13/10

4:27 p.m.-8:49 a.m.

2 stops13h 22m

Toronto Pearson Intl

Mon 19/10

6:10 p.m.-11:50 p.m.

2 stops8h 40m

C$ 546

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Fri 18/9

6:37 p.m.-9:19 a.m.

2 stops11h 42m

Toronto Pearson Intl

Sat 19/9

4:18 p.m.-8:54 p.m.

1 stop7h 36m

C$ 557

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Wed 2/9

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

1 stop12h 19m

Toronto Pearson Intl

Tue 8/9

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

1 stop12h 44m

C$ 566

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Fri 16/10

6:34 p.m.-8:49 a.m.

2 stops11h 15m

Toronto Pearson Intl

Fri 23/10

6:00 a.m.-4:20 p.m.

2 stops13h 20m

C$ 566

San JoseToronto

SJC San Jose - YYZ Toronto Pearson Intl

SJCYYZ

San Jose

Mon 24/8

6:12 p.m.-10:25 a.m.

2 stops13h 13m

Toronto Pearson Intl

Mon 31/8

7:45 a.m.-6:23 p.m.

2 stops13h 38m

C$ 566

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/8

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, May is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 572). Flying from San Jose, California to Region of Ontario in April is currently the most expensive (average of C$ 1,117). 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?

Airfare is below average for this route at the moment.
San Jose, California to Region of Ontario flights typically cost between C$ 543 and C$ 801 in September.
The cheapest round-trip price found within the last 5 days was C$ 506 on Delta (1 Sep-8 Sep).

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$ 525, Delta can have you in Region of Ontario from San Jose, California in 12h 29m. 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$ 219), Delta (C$ 228), and United Airlines (C$ 234).

  • 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, May is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 572). Flying from San Jose, California to Region of Ontario in April is currently the most expensive (average of C$ 1,117). 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 San Jose to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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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