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Cheap flights from San Jose, CA to Ontario from C$ 260

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
7 Jun — 14 Jun1
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 8 May 2026.

Thu 28/57:10 a.m.
SJC
-
YYZ
1 stop11h 45m
Delta
Tue 9/66:30 a.m.
YYZ
-
SJC
1 stop8h 35m
Delta
Deal found 5/5C$ 607
Sat 23/56:00 a.m.
SJC
-
YYZ
2 stops14h 14m
Delta
Wed 3/61:34 p.m.
YYZ
-
SJC
1 stop12h 21m
Delta
Deal found 5/5C$ 614
Sun 19/76:35 a.m.
SJC
-
YYZ
1 stop12h 26m
Delta
Thu 30/71:38 p.m.
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 7/5C$ 616
Mon 25/58:45 a.m.
SJC
-
YYZ
1 stop9h 47m
United Airlines
Tue 9/64:18 p.m.
YYZ
-
SJC
1 stop7h 51m
United Airlines
Deal found 5/5C$ 620
Wed 10/612:46 p.m.
SJC
-
YYZ
1 stop8h 12m
Delta
Fri 10/71:38 p.m.
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 6/5C$ 623
Tue 16/66:35 a.m.
SJC
-
YYZ
1 stop12h 24m
Delta
Thu 9/711:40 a.m.
YYZ
-
SJC
1 stop10h 12m
Delta
Deal found 5/5C$ 625
Wed 24/612:46 p.m.
SJC
-
YYZ
1 stop8h 12m
Delta
Thu 9/71:38 p.m.
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 3/5C$ 631
Tue 23/66:17 a.m.
SJC
-
YYZ
2 stops13h 28m
Multiple Airlines
Sun 12/78:30 p.m.
YYZ
-
SJC
1 stop19h 47m
Multiple Airlines
Deal found 3/5C$ 633
Mon 29/64:35 p.m.
SJC
-
YYZ
2 stops16h 50m
Delta
Sat 11/76:00 a.m.
YYZ
-
SJC
2 stops14h 12m
Delta
Deal found 7/5C$ 637
Wed 22/76:37 p.m.
SJC
-
YYZ
2 stops27h 28m
Multiple Airlines
Sun 26/78:30 p.m.
YYZ
-
SJC
1 stop19h 47m
Multiple Airlines
Deal found 6/5C$ 640
Sat 30/56:20 a.m.
SJC
-
YYZ
2 stops13h 39m
Delta
Fri 5/62:20 p.m.
YYZ
-
SJC
2 stops10h 54m
Delta
Deal found 4/5C$ 642
Tue 22/98:45 a.m.
SJC
-
YOW
2 stops28h 30m
United Airlines
Wed 23/97:30 p.m.
YOW
-
SJC
2 stops19h 29m
United Airlines
Deal found 6/5C$ 771

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 8 May 2026.

Round-trip from

C$ 607

One-way from

C$ 260

Popular in

August

Cheapest in

April

Average price

C$ 525
Delta
  • Delta
  • 28/5-9/6
  • 2 total stops
  • 20h 20m total
  • San Jose to Ontario
Search Deals
American Airlines
  • American Airlines
  • 27/5
  • 2 total stops
  • 12h 35m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 8 May 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 12/6

6:35 a.m.-9:59 p.m.

1 stop12h 24m

Toronto Pearson Intl

Mon 15/6

6:30 a.m.-4:07 p.m.

2 stops12h 37m

C$ 630

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 24/9

12:45 p.m.-12:04 a.m.

1 stop8h 19m

Toronto Pearson Intl

Mon 28/9

6:15 a.m.-4:15 p.m.

2 stops13h 00m

C$ 630

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 31/5

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

1 stop8h 46m

Toronto Pearson Intl

Wed 3/6

2:20 p.m.-10:55 p.m.

2 stops11h 35m

C$ 630

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 24/9

12:45 p.m.-12:04 a.m.

1 stop8h 19m

Toronto Pearson Intl

Tue 29/9

2:15 p.m.-10:09 p.m.

2 stops10h 54m

C$ 630

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 12/6

6:35 a.m.-9:59 p.m.

1 stop12h 24m

Toronto Pearson Intl

Thu 2/7

1:40 p.m.-10:57 p.m.

1 stop12h 17m

C$ 631

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 10/10

7:15 a.m.-11:00 p.m.

2 stops12h 45m

Toronto Pearson Intl

Wed 21/10

12:15 p.m.-10:58 p.m.

2 stops13h 43m

C$ 637

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 18/6

6:35 a.m.-9:59 p.m.

1 stop12h 24m

Toronto Pearson Intl

Fri 10/7

6:30 a.m.-3:46 p.m.

2 stops12h 16m

C$ 637

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 11/6

6:35 a.m.-9:59 p.m.

1 stop12h 24m

Toronto Pearson Intl

Sat 4/7

6:30 a.m.-8:01 p.m.

2 stops16h 31m

C$ 645

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 8/6

6:12 p.m.-11:19 a.m.

2 stops14h 07m

Toronto Pearson Intl

Thu 9/7

12:09 p.m.-10:13 p.m.

2 stops13h 04m

C$ 645

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 25/5

7:00 a.m.-11:58 p.m.

2 stops13h 58m

Toronto Pearson Intl

Wed 3/6

6:12 p.m.-11:41 p.m.

2 stops8h 29m

C$ 645

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

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, June is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 194). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 689). 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?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 8 May 2026.
Check out reviews from past customers who have flown with Delta from San Jose to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,456 reviews
Check prices

Entertainment

7.8

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,456 reviews
Delta
7.9
Good
8,456 reviews
Check prices

Entertainment

7.8

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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$ 630, Delta can have you in Region of Ontario from San Jose, California in 12h 24m. 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$ 215), United Airlines (C$ 221), and Delta (C$ 223).

  • 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, June is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 194). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 689). 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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Top airline flying from San Jose to Ontario

Discover the top airline that operate flights from San Jose to Ontario. 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 8 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 221AverageC$ 303FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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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