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$140+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap 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 January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 3/1610:55 pm
SJC
-
YYZ
1 stop12h 06m
United Airlines
Tue 3/174:10 pm
YYZ
-
SJC
1 stop8h 06m
United Airlines
Deal found 1/19$341
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 3/67:10 pm
SJC
-
YYZ
1 stop17h 25m
Alaska Airlines
Fri 3/134:45 pm
YYZ
-
SJC
1 stop9h 14m
Alaska Airlines
Deal found 1/20$354
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:03 pm
SJC
-
YYZ
1 stop18h 32m
Multiple Airlines
Mon 3/910:00 am
YYZ
-
SJC
2 stops12h 41m
Multiple Airlines
Deal found 1/19$357
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 3/27:10 pm
SJC
-
YYZ
1 stop17h 25m
Alaska Airlines
Tue 3/104:45 pm
YYZ
-
SJC
1 stop27h 24m
Alaska Airlines
Deal found 1/20$363
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 3/27:10 pm
SJC
-
YYZ
1 stop17h 25m
Alaska Airlines
Mon 3/94:45 pm
YYZ
-
SJC
1 stop9h 14m
Alaska Airlines
Deal found 1/20$364
This Delta deal was found by Cheapflights users on 1/20. 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 4/246:10 am
SJC
-
YYZ
1 stop9h 22m
Delta
Sun 5/1012:30 pm
YYZ
-
SJC
1 stop11h 23m
Delta
Deal found 1/20$365
This Delta deal was found by Cheapflights users on 1/19. 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 3/66:20 am
SJC
-
YYZ
2 stops14h 37m
Delta
Sun 3/86:20 am
YYZ
-
SJC
2 stops17h 04m
Delta
Deal found 1/19$374
This Delta deal was found by Cheapflights users on 1/20. 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 4/246:00 pm
SJC
-
YYZ
2 stops15h 19m
Delta
Mon 5/1112:30 pm
YYZ
-
SJC
1 stop11h 23m
Delta
Deal found 1/20$375
This American Airlines deal was found by Cheapflights users on 1/19. 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 2/182:07 pm
SJC
-
YYZ
1 stop20h 07m
American Airlines
Mon 2/235:14 pm
YYZ
-
SJC
1 stop19h 57m
American Airlines
Deal found 1/19$376
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:10 pm
SJC
-
YYZ
1 stop17h 25m
Multiple Airlines
Sun 3/812:30 pm
YYZ
-
SJC
2 stops34h 11m
Multiple Airlines
Deal found 1/20$378
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 2/1110:45 pm
SJC
-
YYZ
2 stops16h 02m
Delta
Tue 2/177:50 am
YYZ
-
SJC
2 stops16h 28m
Delta
Deal found 1/20$380
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 4/284:18 pm
SJC
-
YUL
2 stops16h 26m
American Airlines
Sat 5/212:30 pm
YUL
-
SJC
2 stops13h 29m
American Airlines
Deal found 1/19$570

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$337
(Kiwi.com)

One-way from

$140
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$393
Provider with most accurate pricing for San Jose-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Toronto (YTO) flights.
Search Deals
From San Jose to Ontario
Search Deals
One-way flight from San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 2,558,603 searches. Data last updated January 20, 2026.
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 3/6

7:10 pm-3:35 pm

1 stop17h 25m

Toronto Pearson Intl

Fri 3/13

4:45 pm-10:59 pm

1 stop9h 14m

$354

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 3/2

6:03 pm-3:35 pm

1 stop18h 32m

Toronto Pearson Intl

Mon 3/9

10:00 am-7:41 pm

2 stops12h 41m

$357

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 3/2

7:10 pm-3:35 pm

1 stop17h 25m

Toronto Pearson Intl

Tue 3/10

4:45 pm-5:09 pm

1 stop27h 24m

$363

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 3/2

6:20 am-10:40 pm

2 stops13h 20m

Toronto Pearson Intl

Mon 3/9

6:08 pm-11:58 pm

2 stops8h 50m

$364

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 3/2

6:20 am-10:51 pm

2 stops13h 31m

Toronto Pearson Intl

Tue 3/10

6:08 pm-11:58 pm

2 stops8h 50m

$364

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 3/2

7:10 pm-3:35 pm

1 stop17h 25m

Toronto Pearson Intl

Mon 3/9

4:45 pm-10:59 pm

1 stop9h 14m

$364

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 2/6

10:45 pm-11:09 am

1 stop9h 24m

Toronto Pearson Intl

Sun 2/8

12:21 pm-9:20 pm

1 stop11h 59m

$365

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 3/7

8:00 am-2:35 pm

1 stop27h 35m

Toronto Pearson Intl

Sat 3/14

4:45 pm-10:59 pm

1 stop9h 14m

$365

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Fri 4/24

6:10 am-6:32 pm

1 stop9h 22m

Toronto Pearson Intl

Sun 5/10

12:30 pm-8:53 pm

1 stop11h 23m

$365

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 5/17

10:56 pm-1:25 pm

1 stop11h 29m

Toronto Pearson Intl

Sun 5/24

1:30 pm-10:53 pm

1 stop12h 23m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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.

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 January 20, 2026.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Delta, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,085 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
8,085 reviews
Delta
7.9
Good
8,085 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
9,189 reviews
Delta
7.9
Good
8,085 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
11,169 reviews
Delta
7.9
Good
8,085 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
10,644 reviews
Delta
7.9
Good
8,085 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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, California to Region of Ontario?

    There are many flights that can get you from San Jose, California to Region of Ontario in 13h 20m. Fly via Alaska Airlines, Delta, or United Airlines 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 cheapest airlines to fly from San Jose, California to Region of Ontario one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $153. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from San Jose, California to Region of Ontario for a low price.

  • 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 - 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, 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.

See more FAQs

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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$470FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$207Average$469FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$250Average$478FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$389Average$562FlexibilityNo cancel feeOn-time71%

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