Ontario

$196+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
Jul 21 — Jul 281
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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 June 21, 2026.

This Kissandfly.com deal was found by Cheapflights users on 6/18. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:35 pm
SJC
-
YYZ
1 stop8h 22m
KLM
Thu 8/136:00 am
YYZ
-
SJC
1 stop8h 22m
KLM
Deal found 6/18$462
This Delta deal was found by Cheapflights users on 6/19. 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.
Tue 7/286:00 am
SJC
-
YYZ
1 stop7h 35m
Delta
Wed 8/512:25 pm
YYZ
-
SJC
1 stop10h 59m
Delta
Deal found 6/19$471
This Delta deal was found by Cheapflights users on 6/19. 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 7/106:35 am
SJC
-
YYZ
1 stop12h 26m
Delta
Tue 7/211:38 pm
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 6/19$472
This American Airlines deal was found by Cheapflights users on 6/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SJC
-
YYZ
1 stop13h 54m
American Airlines
Wed 9/26:46 am
YYZ
-
SJC
1 stop9h 54m
American Airlines
Deal found 6/17$478
This Delta deal was found by Cheapflights users on 6/19. 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 7/107:10 pm
SJC
-
YYZ
2 stops13h 09m
Delta
Wed 7/221:38 pm
YYZ
-
SJC
1 stop12h 11m
Delta
Deal found 6/19$482
This Delta deal was found by Cheapflights users on 6/19. 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 7/1012:40 pm
SJC
-
YYZ
1 stop8h 18m
Delta
Fri 7/2412:25 pm
YYZ
-
SJC
1 stop11h 10m
Delta
Deal found 6/19$484
This Delta deal was found by Cheapflights users on 6/19. 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.
Tue 7/77:00 am
SJC
-
YYZ
2 stops13h 13m
Delta
Fri 7/176:10 am
YYZ
-
SJC
2 stops12h 54m
Delta
Deal found 6/19$487
This FlightHub deal was found by Cheapflights users on 6/18. 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.
Tue 11/109:05 am
SJC
-
YYZ
2 stops11h 35m
WestJet
Tue 11/177:45 am
YYZ
-
SJC
2 stops12h 12m
WestJet
Deal found 6/18$490
This Delta deal was found by Cheapflights users on 6/17. 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.
Wed 7/296:35 am
SJC
-
YYZ
1 stop12h 26m
Delta
Sat 8/811:40 am
YYZ
-
SJC
1 stop13h 01m
Delta
Deal found 6/17$496
This Delta deal was found by Cheapflights users on 6/18. 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 7/712:40 pm
SJC
-
YUL
1 stop8h 12m
Delta
Wed 7/157:00 am
YUL
-
SJC
1 stop8h 01m
Delta
Deal found 6/18$518
This Delta deal was found by Cheapflights users on 6/18. 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 7/87:00 am
SJC
-
YUL
2 stops13h 25m
Delta
Wed 7/157:00 am
YUL
-
SJC
1 stop8h 01m
Delta
Deal found 6/18$528
This American Airlines deal was found by Cheapflights users on 6/19. 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.
Sun 8/97:14 pm
SJC
-
YUL
2 stops18h 39m
American Airlines
Tue 8/187:55 am
YUL
-
SJC
2 stops13h 38m
American Airlines
Deal found 6/19$532

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 June 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$455
(KAYAK)

One-way from

$196
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$424
Provider with most accurate pricing for San Jose-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for San Jose-Toronto (YTO) flights.
From San Jose to Ontario
One-way flight from San Jose to Ontario
Highest demand for flights based on searches. 15% potential increase in price ($97 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 21, 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

Fri 7/3

10:00 pm-12:25 pm

1 stop11h 25m

Toronto Pearson Intl

Tue 7/7

1:38 pm-10:49 pm

1 stop12h 11m

$472
Quickest round-trip

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 10/17

2:08 pm-11:59 pm

1 stop6h 51m

Toronto Pearson Intl

Tue 10/20

5:27 pm-10:42 pm

1 stop8h 15m

$472

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 10/1

6:30 am-9:59 pm

1 stop12h 29m

Toronto Pearson Intl

Sun 10/4

6:15 am-12:27 pm

1 stop9h 12m

$472

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 7/11

8:45 am-9:32 pm

1 stop9h 47m

Toronto Pearson Intl

Wed 7/22

6:10 am-12:03 pm

1 stop8h 53m

$472

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 8/19

1:24 pm-11:10 pm

1 stop6h 46m

Toronto Pearson Intl

Tue 8/25

6:00 am-11:22 am

1 stop8h 22m

$472

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 10/10

12:45 pm-12:01 am

1 stop8h 16m

Toronto Pearson Intl

Fri 10/16

1:30 pm-6:52 pm

1 stop8h 22m

$472

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Mon 9/14

6:37 pm-2:24 pm

2 stops16h 47m

Toronto Pearson Intl

Wed 9/16

10:45 am-5:31 pm

1 stop9h 46m

$482

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 7/15

6:35 am-10:01 pm

1 stop12h 26m

Toronto Pearson Intl

Wed 7/22

6:10 am-4:04 pm

2 stops12h 54m

$482

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 7/4

12:46 pm-11:58 pm

1 stop8h 12m

Toronto Pearson Intl

Wed 7/8

6:30 am-3:46 pm

2 stops12h 16m

$482

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 10/3

6:10 pm-10:23 am

2 stops13h 13m

Toronto Pearson Intl

Sun 10/18

1:30 pm-10:58 pm

1 stop12h 28m

$482

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

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, July is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of $145). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of $505). 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.

How much does it cost to fly round-trip from San Jose, California to Region of Ontario?

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 June 21, 2026.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Delta,United Airlines, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

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.

Comfort

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

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.

Comfort

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

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.

Comfort

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

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?

    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 6h 51m. Fly via Delta, United Airlines, or Air Canada 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 $164. However, be on the lookout for offers from United Airlines and Air Canada, 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?

  • 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, July is the cheapest month in which you can book a flight from San Jose, California to Region of Ontario (average of $145). Flying from San Jose, California to Region of Ontario in January is currently the most expensive (average of $505). 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.

Top 3 airlines flying from San Jose to Ontario

Discover the top 3 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 June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$153Average$780FlexibilityNo cancel feeOn-time69%
DeltaCheapest$187Average$477FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$387Average$574FlexibilityNo cancel feeOn-time71%

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