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$114+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
ago. 16 — ago. 231
sáb. 8/16
sáb. 8/23
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 agosto 11, 2025.

Round-trip from

$263
(Kiwi.com)

One-way from

$114
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$646
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. 11% potential increase in price ($63 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 August 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 agosto 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
mar. 9/911:40 amSJC - YYZ
1 stop29h 18mMultiple Airlines
mar. 9/169:30 amYYZ - SJC
1 stop28h 15mMultiple Airlines
Deal found 8/10$263
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
mié. 9/36:00 amSJC - YYZ
2 stops13h 52mMultiple Airlines
mié. 9/109:45 amYYZ - SJC
1 stop13h 15mMultiple Airlines
Deal found 8/11$272
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
mar. 9/911:40 amSJC - YYZ
1 stop29h 18mMultiple Airlines
jue. 9/118:15 amYYZ - SJC
2 stops14h 45mMultiple Airlines
Deal found 8/11$279
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
jue. 9/46:35 amSJC - YYZ
1 stop10h 10mMultiple Airlines
mié. 9/109:45 amYYZ - SJC
1 stop13h 15mMultiple Airlines
Deal found 8/9$280
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
mar. 12/96:00 amSJC - YYZ
1 stop10h 55mMultiple Airlines
lun. 12/158:00 pmYYZ - SJC
1 stop29h 19mMultiple Airlines
Deal found 8/10$281
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
lun. 12/86:00 amSJC - YYZ
1 stop11h 32mMultiple Airlines
mié. 12/109:35 amYYZ - SJC
1 stop15h 44mMultiple Airlines
Deal found 8/10$286
This Mytrip deal was found by Cheapflights users on 8/11. 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.
vie. 10/36:35 amSJC - YUL
2 stops15h 02mMultiple Airlines
sáb. 10/117:00 amYUL - SJC
3 stops27h 20mMultiple Airlines
Deal found 8/11$405
This Mytrip deal was found by Cheapflights users on 8/11. 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.
sáb. 10/46:35 amSJC - YUL
2 stops15h 02mMultiple Airlines
sáb. 10/117:00 amYUL - SJC
3 stops27h 20mMultiple Airlines
Deal found 8/11$418
This Mytrip deal was found by Cheapflights users on 8/11. 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.
mié. 9/34:41 pmSJC - YHM
3 stops28h 18mMultiple Airlines
mié. 9/106:00 amYHM - SJC
3 stops31h 45mMultiple Airlines
Deal found 8/11$419
This Mytrip deal was found by Cheapflights users on 8/11. 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.
sáb. 10/46:35 amSJC - YUL
2 stops15h 02mMultiple Airlines
mar. 10/147:00 amYUL - SJC
3 stops19h 56mMultiple Airlines
Deal found 8/11$420
This Mytrip deal was found by Cheapflights users on 8/11. 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.
mar. 10/286:00 amSJC - YUL
2 stops15h 35mMultiple Airlines
vie. 10/316:45 amYUL - SJC
2 stops20h 11mMultiple Airlines
Deal found 8/11$433
This Mytrip deal was found by Cheapflights users on 8/11. 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.
mar. 9/911:40 amSJC - YHM
2 stops34h 00mMultiple Airlines
jue. 9/116:00 amYHM - SJC
3 stops17h 00mMultiple Airlines
Deal found 8/11$442

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 agosto 11, 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

mar. 9/9

11:40 am-7:58 pm

1 stop29h 18m

Toronto Pearson Intl

mar. 9/16

9:30 am-10:45 am

1 stop28h 15m

$263

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

mié. 9/3

6:00 am-10:52 pm

2 stops13h 52m

Toronto Pearson Intl

mié. 9/10

9:45 am-8:00 pm

1 stop13h 15m

$272

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

mar. 9/9

11:40 am-7:58 pm

1 stop29h 18m

Toronto Pearson Intl

jue. 9/11

8:15 am-8:00 pm

2 stops14h 45m

$279

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

jue. 9/4

6:35 am-7:45 pm

1 stop10h 10m

Toronto Pearson Intl

mié. 9/10

9:45 am-8:00 pm

1 stop13h 15m

$280

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

mar. 12/9

6:00 am-7:55 pm

1 stop10h 55m

Toronto Pearson Intl

lun. 12/15

8:00 pm-10:19 pm

1 stop29h 19m

$281

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

lun. 12/8

6:00 am-8:32 pm

1 stop11h 32m

Toronto Pearson Intl

mié. 12/10

9:35 am-10:19 pm

1 stop15h 44m

$286

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

vie. 10/3

6:35 am-12:37 am

2 stops15h 02m

Montreal Pierre Elliott Trudeau Intl

sáb. 10/11

7:00 am-7:20 am

3 stops27h 20m

$405

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

sáb. 10/4

6:35 am-12:37 am

2 stops15h 02m

Montreal Pierre Elliott Trudeau Intl

sáb. 10/11

7:00 am-7:20 am

3 stops27h 20m

$418

San JoseHamilton

SJC - YHM

SJCYHM

San Jose

mié. 9/3

4:41 pm-11:59 pm

3 stops28h 18m

Hamilton

mié. 9/10

6:00 am-10:45 am

3 stops31h 45m

$419

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

sáb. 10/4

6:35 am-12:37 am

2 stops15h 02m

Montreal Pierre Elliott Trudeau Intl

mar. 10/14

7:00 am-11:56 pm

3 stops19h 56m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

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 agosto 11, 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 agosto 11, 2025.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Alaska Airlines, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,922 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
WestJet
7.2
Good
3,007 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

  • 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 - Ottawa 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.

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 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 agosto 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$207Average$447FlexibilityNo cancel feeOn-time67%
DeltaCheapest$207Average$464FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$323Average$691FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$440Average$540FlexibilityNo cancel feeOn-time71%

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