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$117+ Cheap flights from San Jose, CA (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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

November

Cheapest in

March

Average price

$702
Provider with most accurate pricing for San Jose-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for San Jose-Toronto (YTO) flights.
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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. 20% potential increase in price ($129 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/15. 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.
Sun 12/217:48 pmSJC - YYZ
2 stops31h 59mMultiple Airlines
Thu 1/88:00 pmYYZ - SJC
1 stop25h 36mMultiple Airlines
Deal found 11/15$329
This United Airlines deal was found by Cheapflights users on 11/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:29 pmSJC - YOW
2 stops20h 58mUnited Airlines
Wed 1/79:45 amYOW - SJC
2 stops14h 11mUnited Airlines
Deal found 11/16$377
This Alaska Airlines deal was found by Cheapflights users on 11/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:18 amSJC - YYZ
1 stop30h 17mAlaska Airlines
Mon 12/84:45 pmYYZ - SJC
1 stop30h 15mAlaska Airlines
Deal found 11/15$384
This American Airlines deal was found by Cheapflights users on 11/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amSJC - YYZ
1 stop7h 15mAmerican Airlines
Sun 12/146:10 amYYZ - SJC
1 stop17h 35mAmerican Airlines
Deal found 11/15$390
This Delta deal was found by Cheapflights users on 11/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:45 amSJC - YYZ
2 stops14h 26mDelta
Wed 1/712:21 pmYYZ - SJC
1 stop11h 59mDelta
Deal found 11/15$400
This Delta deal was found by Cheapflights users on 11/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:45 amSJC - YYZ
2 stops14h 26mDelta
Sat 1/106:00 amYYZ - SJC
2 stops16h 12mDelta
Deal found 11/15$405
This Flightnetwork deal was found by Cheapflights users on 11/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:00 amSJC - YYZ
1 stop10h 41mAir Canada
Wed 1/78:30 amYYZ - SJC
1 stop8h 09mAir Canada
Deal found 11/15$415
This Delta deal was found by Cheapflights users on 11/17. 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.
Mon 12/87:15 amSJC - YUL
2 stops13h 32mDelta
Mon 12/157:00 amYUL - SJC
2 stops14h 56mDelta
Deal found 11/17$438
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:25 pmSJC - YYZ
1 stop9h 42mDelta
Thu 12/1812:23 pmYYZ - SJC
1 stop13h 32mDelta
Deal found 11/16$458
This United Airlines deal was found by Cheapflights users on 11/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:00 amSJC - YYZ
1 stop10h 41mUnited Airlines
Wed 1/72:50 pmYYZ - SJC
1 stop9h 06mUnited Airlines
Deal found 11/15$465
This Delta deal was found by Cheapflights users on 11/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 amSJC - YYZ
2 stops14h 25mDelta
Wed 1/712:21 pmYYZ - SJC
1 stop11h 59mDelta
Deal found 11/15$467
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:15 amSJC - YUL
2 stops13h 44mDelta
Thu 12/257:00 amYUL - SJC
2 stops15h 56mDelta
Deal found 11/16$522

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 November 17, 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 JoseOttawa

SJC - YOW

SJCYOW

San Jose

Tue 3/10

3:49 pm-2:27 pm

2 stops19h 38m

Ottawa

Wed 3/11

5:11 pm-10:59 pm

1 stop8h 48m

$344

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 2/24

3:55 pm-2:01 pm

2 stops19h 06m

Toronto Pearson Intl

Wed 2/25

4:10 pm-9:06 pm

1 stop7h 56m

$376

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

Wed 12/31

2:29 pm-2:27 pm

2 stops20h 58m

Ottawa

Wed 1/7

9:45 am-8:56 pm

2 stops14h 11m

$377

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 1/9

8:40 am-11:46 pm

2 stops12h 06m

Toronto Pearson Intl

Fri 1/16

9:00 am-8:56 pm

2 stops14h 56m

$387

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 12/6

3:09 pm-3:35 pm

2 stops21h 26m

Toronto Pearson Intl

Mon 12/8

4:45 pm-10:59 pm

1 stop9h 14m

$396

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 12/22

5:55 am-11:20 pm

2 stops14h 25m

Toronto Pearson Intl

Wed 1/7

12:21 pm-9:20 pm

1 stop11h 59m

$400

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 2/14

5:45 am-11:13 pm

2 stops14h 28m

Toronto Pearson Intl

Wed 2/18

12:20 pm-9:20 pm

1 stop12h 00m

$400

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 12/22

5:55 am-11:20 pm

2 stops14h 25m

Toronto Pearson Intl

Fri 1/9

7:50 am-9:20 pm

2 stops16h 30m

$405

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 12/18

5:45 am-11:11 pm

2 stops14h 26m

Toronto Pearson Intl

Tue 1/6

7:50 am-9:28 pm

2 stops16h 38m

$405

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 12/31

2:29 pm-2:14 pm

2 stops20h 45m

Toronto Pearson Intl

Wed 1/7

9:00 pm-1:39 pm

2 stops19h 39m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

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, 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 $127). Flying from San Jose, California to Region of Ontario in August is currently the most expensive (average of $203). 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 November 17, 2025.

A simple way to save on the total cost of your ticket is to fly from San Jose, California to Region of Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 64% on your trip compared to booking a flight in the morning.

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 November 17, 2025.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Porter 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.
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
392 reviews
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Delta
7.9
Good
8,006 reviews
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,014 reviews
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,048 reviews
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,457 reviews
Porter Airlines
8.0
Very good
392 reviews

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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, California to Region of Ontario?

    There are many flights that can get you from San Jose, California to Region of Ontario in 14h 25m. Fly via United Airlines, Alaska Airlines, or Delta to get the fastest option. The distance between San Jose, California and Region of Ontario is about 2238 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    When deciding which route to take from San Jose, California to Region of Ontario consider San Jose - Toronto Pearson Intl, San Jose - Hamilton or San Jose - Montreal Pierre Elliott Trudeau Intl 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, 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 $127). Flying from San Jose, California to Region of Ontario in August is currently the most expensive (average of $203). 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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Alternative routes for San Jose to Ontario

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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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$207Average$489FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$208Average$447FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$350Average$698FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$435Average$567FlexibilityNo cancel feeOn-time71%

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