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$95+ Cheap flights from San Jose (SJC) to Ontario

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$273
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$495
From San Jose to Ontario
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One-way flight from San Jose to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Jose to Ontario

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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:53 amSJC - YYZ
1 stop17h 06mMultiple Airlines
Tue 10/211:30 pmYYZ - SJC
2 stops23h 43mMultiple Airlines
Deal found 9/13$273
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:35 amSJC - YYZ
1 stop10h 10mMultiple Airlines
Tue 10/71:30 pmYYZ - SJC
2 stops23h 43mMultiple Airlines
Deal found 9/13$275
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:15 pmSJC - YYZ
2 stops19h 37mMultiple Airlines
Tue 10/2810:00 amYYZ - SJC
1 stop27h 09mMultiple Airlines
Deal found 9/14$285
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:53 amSJC - YYZ
1 stop17h 06mMultiple Airlines
Wed 10/221:30 pmYYZ - SJC
2 stops23h 43mMultiple Airlines
Deal found 9/16$293
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:48 amSJC - YYZ
2 stops16h 25mMultiple Airlines
Wed 11/510:00 amYYZ - SJC
1 stop27h 09mMultiple Airlines
Deal found 9/14$295
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:40 amSJC - YYZ
2 stops16h 19mMultiple Airlines
Wed 10/110:00 amYYZ - SJC
3 stops27h 45mMultiple Airlines
Deal found 9/15$298
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:55 pmSJC - YYZ
2 stops27h 43mMultiple Airlines
Sun 11/167:55 pmYYZ - SJC
1 stop24h 39mMultiple Airlines
Deal found 9/14$304
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:19 pmSJC - YYZ
1 stop9h 01mMultiple Airlines
Sat 11/1510:15 pmYYZ - SJC
2 stops46h 19mMultiple Airlines
Deal found 9/16$305
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:40 amSJC - YYZ
2 stops15h 32mMultiple Airlines
Sun 10/57:45 pmYYZ - SJC
1 stop30h 01mMultiple Airlines
Deal found 9/15$309
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:35 amSJC - YYZ
3 stops32h 03mMultiple Airlines
Tue 9/307:45 pmYYZ - SJC
2 stops18h 00mMultiple Airlines
Deal found 9/14$311
This Vliegwinkel deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:35 amSJC - YTZ
2 stops20h 10mMultiple Airlines
Sun 10/53:25 pmYTZ - SJC
2 stops34h 21mMultiple Airlines
Deal found 9/15$425
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:00 amSJC - YUL
2 stops13h 21mDelta
Fri 10/246:40 pmYUL - SJC
2 stops17h 39mDelta
Deal found 9/14$425

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 2,558,603 searches. Data last updated September 16, 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

Fri 10/17

6:15 am-6:59 am

1 stop21h 44m

Toronto Pearson Intl

Tue 10/21

11:00 am-10:46 pm

2 stops14h 46m

$354

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 9/29

6:35 am-7:58 pm

1 stop10h 23m

Toronto Pearson Intl

Tue 9/30

9:30 am-10:45 am

1 stop28h 15m

$357

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 11/14

7:47 pm-3:35 pm

1 stop16h 48m

Toronto Pearson Intl

Tue 11/18

4:45 pm-10:57 am

1 stop21h 12m

$402

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 11/8

6:18 pm-3:35 pm

1 stop18h 17m

Toronto Pearson Intl

Wed 11/12

4:45 pm-1:45 pm

1 stop24h 00m

$403

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 12/6

6:18 am-3:35 pm

1 stop30h 17m

Toronto Pearson Intl

Mon 12/8

4:45 pm-3:54 pm

1 stop26h 09m

$404

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 11/28

6:15 am-3:35 pm

1 stop30h 20m

Toronto Pearson Intl

Wed 12/3

4:45 pm-1:50 pm

1 stop24h 05m

$412

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 11/13

2:39 pm-3:35 pm

1 stop21h 56m

Toronto Pearson Intl

Mon 11/17

4:45 pm-10:57 am

1 stop21h 12m

$414

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 10/15

9:33 am-3:00 pm

2 stops26h 27m

Toronto Pearson Intl

Tue 10/21

4:45 pm-10:13 am

2 stops20h 28m

$415

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Tue 10/7

7:00 am-11:21 pm

2 stops13h 21m

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

7:00 am-9:05 pm

2 stops17h 05m

$425

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Tue 10/7

7:00 am-11:21 pm

2 stops13h 21m

Montreal Pierre Elliott Trudeau Intl

Thu 10/23

6:40 pm-8:18 am

2 stops16h 38m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of $243). Flying from San Jose to Region of Ontario in August is currently the most expensive (average of $348). 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 September 16, 2025.

When flying from San Jose to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 16, 2025.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Delta, Porter Airlines, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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.
Porter Airlines
7.9
Good
363 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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.
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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.
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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?

    Most people fly from San Jose (SJC) if they book a flight from San Jose to Ontario. San Jose is conveniently located just 2.9 mi from San Jose’s city center.

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

    Airlines like Alaska Airlines, Delta, and WestJet fly from San Jose to Region of Ontario in about 13h 21m. The time it takes to get you to your destination can typically vary by up to 3h 27m. The distance between San Jose and Region of Ontario is about 2517 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from San Jose to Region of Ontario consider San Jose - Toronto Pearson Intl, San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Hamilton as they are the most popular.

  • 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 to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of $243). Flying from San Jose to Region of Ontario in August is currently the most expensive (average of $348). 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.

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Top 4 airlines flying from San Jose to Ontario

Discover the top 4 airlines 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 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$207Average$433FlexibilityNo cancel feeOn-time67%
DeltaCheapest$207Average$480FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$323Average$692FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$435Average$567FlexibilityNo cancel feeOn-time71%

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