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Cheap flights from San Jose, CA to Ontario from C$ 198

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
21 Apr — 28 Apr1
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 22 March 2026.

Mon 4/58:22 p.m.
SJC
-
YYZ
1 stop20h 47m
Multiple Airlines
Mon 11/510:00 a.m.
YYZ
-
SJC
2 stops12h 19m
Multiple Airlines
Deal found 19/3C$ 475
Fri 1/56:45 a.m.
SJC
-
YYZ
2 stops15h 20m
Multiple Airlines
Thu 7/54:55 p.m.
YYZ
-
SJC
1 stop8h 40m
Multiple Airlines
Deal found 20/3C$ 523
Tue 7/43:45 p.m.
SJC
-
YYZ
2 stops19h 34m
United Airlines
Wed 8/45:20 p.m.
YYZ
-
SJC
1 stop8h 21m
United Airlines
Deal found 21/3C$ 525
Sun 31/59:53 a.m.
SJC
-
YYZ
2 stops18h 02m
Multiple Airlines
Wed 3/64:55 p.m.
YYZ
-
SJC
1 stop9h 36m
Multiple Airlines
Deal found 17/3C$ 528
Fri 1/56:19 p.m.
SJC
-
YYZ
2 stops12h 00m
United Airlines
Sat 2/51:00 p.m.
YYZ
-
SJC
2 stops11h 32m
United Airlines
Deal found 21/3C$ 532
Mon 4/51:59 p.m.
SJC
-
YYZ
2 stops13h 56m
WestJet
Mon 11/510:50 a.m.
YYZ
-
SJC
2 stops11h 29m
WestJet
Deal found 19/3C$ 535
Thu 16/46:45 a.m.
SJC
-
YYZ
2 stops14h 10m
Multiple Airlines
Thu 23/44:55 p.m.
YYZ
-
SJC
1 stop8h 40m
Multiple Airlines
Deal found 17/3C$ 539
Sun 3/54:00 p.m.
SJC
-
YYZ
2 stops25h 05m
WestJet
Sun 10/510:50 a.m.
YYZ
-
SJC
2 stops14h 24m
WestJet
Deal found 19/3C$ 542
Fri 15/511:00 p.m.
SJC
-
YYZ
1 stop11h 30m
Delta
Wed 20/55:45 p.m.
YYZ
-
SJC
1 stop8h 56m
Delta
Deal found 17/3C$ 546
Wed 29/47:20 a.m.
SJC
-
YYZ
2 stops12h 25m
Multiple Airlines
Tue 5/54:55 p.m.
YYZ
-
SJC
1 stop8h 40m
Multiple Airlines
Deal found 21/3C$ 547
Thu 8/1010:55 p.m.
SJC
-
YYZ
1 stop11h 30m
Delta
Mon 19/101:30 p.m.
YYZ
-
SJC
1 stop12h 28m
Delta
Deal found 20/3C$ 553
Fri 17/46:45 a.m.
SJC
-
YYZ
2 stops20h 28m
WestJet
Tue 21/410:00 a.m.
YYZ
-
SJC
2 stops30h 18m
WestJet
Deal found 19/3C$ 554

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 22 March 2026.

Round-trip from

C$ 475

One-way from

C$ 198

Popular in

August

Cheapest in

November

Average price

C$ 620
WestJet
  • WestJet
  • 4/5-11/5
  • 3 total stops
  • 33h 06m total
  • San Jose to Ontario
Search Deals
4/5
  • 4/5
  • 1 total stop
  • 20h 47m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 22 March 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

Mon 13/4

11:00 p.m.-12:19 p.m.

1 stop10h 19m

Toronto Pearson Intl

Mon 20/4

11:30 a.m.-9:45 p.m.

1 stop13h 15m

C$ 546

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 31/5

6:20 a.m.-6:31 p.m.

1 stop9h 11m

Toronto Pearson Intl

Wed 3/6

1:34 p.m.-10:55 p.m.

1 stop12h 21m

C$ 546

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 10/5

10:00 p.m.-10:19 a.m.

1 stop9h 19m

Toronto Pearson Intl

Sat 13/6

1:30 p.m.-10:53 p.m.

1 stop12h 23m

C$ 546
Quickest round-trip

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 11/5

11:00 p.m.-11:19 a.m.

1 stop9h 19m

Toronto Pearson Intl

Thu 11/6

5:50 p.m.-11:49 p.m.

1 stop8h 59m

C$ 546

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 17/5

10:00 p.m.-12:19 p.m.

1 stop11h 19m

Toronto Pearson Intl

Sun 24/5

6:30 a.m.-5:02 p.m.

2 stops13h 32m

C$ 560

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 1/5

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

2 stops10h 00m

Toronto Pearson Intl

Fri 8/5

2:20 p.m.-9:40 p.m.

1 stop10h 20m

C$ 560

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 15/4

8:20 p.m.-8:56 a.m.

2 stops9h 36m

Toronto Pearson Intl

Sun 19/4

6:15 a.m.-12:21 p.m.

1 stop9h 06m

C$ 560

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

Mon 4/5

6:19 p.m.-2:22 p.m.

2 stops17h 03m

Ottawa

Thu 7/5

5:25 p.m.-10:46 p.m.

1 stop8h 21m

C$ 624

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

Sat 2/5

8:45 a.m.-10:03 a.m.

2 stops22h 18m

Ottawa

Sat 9/5

10:44 a.m.-9:32 p.m.

2 stops13h 48m

C$ 702

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

Tue 5/5

2:46 p.m.-4:38 p.m.

2 stops22h 52m

Ottawa

Tue 12/5

10:44 a.m.-6:31 p.m.

1 stop10h 47m

C$ 755

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

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, February is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of C$ 173). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 303). 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.

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 22 March 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
8,314 reviews
Check prices

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

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
8,314 reviews
Delta
7.9
Good
8,314 reviews
Check prices

Comfort

7.9

Overall

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

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$ 546, Delta can have you in Region of Ontario from San Jose, California in 10h 19m. 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$ 216), United Airlines (C$ 222), and Delta (C$ 225).

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

    While some choose either San Jose - Toronto Pearson Intl or San Jose - Toronto Island, San Jose - Montreal Pierre Elliott Trudeau 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$ 173). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of C$ 303). 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

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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 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 222AverageC$ 321FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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