HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Jose

$160+ Cheap flights from Ontario to San Jose (SJC)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SJC
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to San Jose with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to San Jose

Keep the following information in mind while searching for Ontario to San Jose flight deals. Data was last updated July 31, 2025.

Round-trip from

$318
(Kiwi.com)

One-way from

$160
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$406
From Ontario to San Jose
Search Deals
One-way flight from Ontario to San Jose
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Ontario to San Jose

Cheapest flights from Ontario to San Jose
Explore the most affordable flight options available from Ontario to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/32:00 pmYYZ - SJC
2 stops13h 24mMultiple Airlines
Sat 10/118:15 amSJC - YYZ
1 stop8h 30mMultiple Airlines
Deal found 7/29$318
This Delta deal was found by Cheapflights users on 7/29. 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.
Sun 8/316:15 amYYZ - SJC
2 stops13h 49mDelta
Wed 9/1012:30 pmSJC - YYZ
1 stop8h 25mDelta
Deal found 7/29$332
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 9/114:45 pmYYZ - SJC
1 stop19h 26mAlaska Airlines
Sat 9/2012:10 pmSJC - YYZ
1 stop23h 50mAlaska Airlines
Deal found 7/30$354
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:25 pmYTZ - SJC
2 stops21h 55mMultiple Airlines
Sat 9/206:00 amSJC - YTZ
3 stops32h 45mMultiple Airlines
Deal found 7/30$373
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Fri 9/197:00 amYUL - SJC
3 stops27h 20mMultiple Airlines
Sat 9/278:15 amSJC - YUL
3 stops32h 20mMultiple Airlines
Deal found 7/30$402
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 9/193:44 pmYUL - SJC
2 stops29h 51mAmerican Airlines
Sat 9/276:00 amSJC - YUL
2 stops29h 49mAmerican Airlines
Deal found 7/30$435
This Delta deal was found by Cheapflights users on 7/31. 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 9/46:20 amYUL - SJC
2 stops15h 53mDelta
Wed 9/107:00 amSJC - YUL
2 stops13h 16mDelta
Deal found 7/31$456
This Mytrip deal was found by Cheapflights users on 7/31. 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.
Sat 9/137:00 amYOW - SJC
2 stops16h 00mMultiple Airlines
Sun 10/511:40 amSJC - YOW
3 stops16h 05mMultiple Airlines
Deal found 7/31$473
This Mytrip deal was found by Cheapflights users on 7/31. 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.
Thu 8/216:00 amYKF - SJC
3 stops32h 44mMultiple Airlines
Sun 8/316:00 amSJC - YKF
2 stops15h 46mMultiple Airlines
Deal found 7/31$554
This lol.travel deal was found by Cheapflights users on 7/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:15 amYUL - SJC
1 stop19h 25mUnited Airlines
Sat 9/276:30 amSJC - YUL
1 stop7h 56mUnited Airlines
Deal found 7/30$583
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 8/315:25 pmYOW - SJC
1 stop8h 15mUnited Airlines
Tue 9/91:05 pmSJC - YOW
2 stops17h 53mUnited Airlines
Deal found 7/31$669
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Thu 8/286:00 amYKF - SJC
2 stops13h 07mWestJet
Thu 9/47:00 amSJC - YKF
2 stops14h 45mWestJet
Deal found 7/29$682

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to San Jose 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 July 31, 2025.
Use the filters below to find and compare flights from Ontario to San Jose that are best for you.

Fly from

Ontario

Fly to

San Jose

Route

Depart

Return

Price

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Fri 10/3

2:00 pm-12:24 am

2 stops13h 24m

San Jose

Sat 10/11

8:15 am-7:45 pm

1 stop8h 30m

$318

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Sun 8/31

6:15 am-5:04 pm

2 stops13h 49m

San Jose

Wed 9/10

12:30 pm-11:55 pm

1 stop8h 25m

$332

TorontoSan Jose

YYZ - SJC

YYZSJC

Toronto Pearson Intl

Thu 9/11

4:45 pm-9:11 am

1 stop19h 26m

San Jose

Sat 9/20

12:10 pm-3:00 pm

1 stop23h 50m

$354

TorontoSan Jose

YTZ - SJC

YTZSJC

Toronto Island

Thu 9/11

12:25 pm-7:20 am

2 stops21h 55m

San Jose

Sat 9/20

6:00 am-5:45 pm

3 stops32h 45m

$373

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

7:00 am-7:20 am

3 stops27h 20m

San Jose

Sat 9/27

8:15 am-7:35 pm

3 stops32h 20m

$402

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

3:44 pm-6:35 pm

2 stops29h 51m

San Jose

Sat 9/27

6:00 am-2:49 pm

2 stops29h 49m

$435

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

6:20 am-7:13 pm

2 stops15h 53m

San Jose

Wed 9/10

7:00 am-11:16 pm

2 stops13h 16m

$456

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Sat 9/13

7:00 am-8:00 pm

2 stops16h 00m

San Jose

Sun 10/5

11:40 am-6:45 am

3 stops16h 05m

$473

TorontoSan Jose

YKF - SJC

YKFSJC

Toronto Region of Waterloo Intl

Thu 8/21

6:00 am-11:44 am

3 stops32h 44m

San Jose

Sun 8/31

6:00 am-12:46 am

2 stops15h 46m

$554

MontrealSan Jose

YUL - SJC

YULSJC

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

6:15 am-10:40 pm

1 stop19h 25m

San Jose

Sat 9/27

6:30 am-5:26 pm

1 stop7h 56m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Ontario to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose from Ontario 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 Ontario to San Jose

What is the cheapest month to book a flight from Region of Ontario to San Jose?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to San Jose (average of $255). Flying from Region of Ontario to San Jose in June is currently the most expensive (average of $359). 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 ON to SJC?

Find hourly flight availability from Ontario to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Jose as you normally would.

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

Reviews of airlines servicing San Jose

Get insights into the airlines that provide service to San Jose. 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 San Jose. Reviews last updated July 31, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Ontario to San Jose have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
WestJet
7.2
Good
2,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Jose. 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 into for flights to San Jose from Ontario?

    For a flight from Ontario to San Jose, you will be flying into San Jose. San Jose (SJC) is just 2.9 mi from the center of the city.

  • What are the cheapest airlines to fly from Region of Ontario to San Jose one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $194. However, be on the lookout for offers from American Airlines and Air Canada, as they are both options that can get you from Region of Ontario to San Jose for a low price.

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

    The most popular route from Region of Ontario to San Jose is Toronto Pearson Intl - San Jose. You may also consider Montreal Pierre Elliott Trudeau Intl - San Jose or Ottawa - San Jose.

  • Can I find deals for flights from Ontario to San Jose that include hotel bookings?

    Yes. In addition to deals on Ontario to San Jose flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to San Jose?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Jose.

  • Can I find deals for business class flights from Ontario to San Jose?

    Yes. Cheapflights offers flight deals from Ontario to San Jose 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 Region of Ontario to San Jose?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to San Jose (average of $255). Flying from Region of Ontario to San Jose in June is currently the most expensive (average of $359). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to San Jose

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Los Angeles flights
Vancouver Intl to Las Vegas flights
Pearson Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Vancouver Intl to Los Angeles flights
Vancouver Intl to San Francisco flights
Calgary to Las Vegas flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to San Diego flights
Vancouver Intl to Ontario flights
Calgary to Los Angeles flights
Vancouver Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Edmonton to Las Vegas flights
Abbotsford to Los Angeles flights
Abbotsford to Las Vegas flights
Toronto Island to Los Angeles flights
Vancouver Intl to Sacramento flights
Vancouver Intl to Santa Ana flights
Pearson Intl to Ontario flights
Edmonton to Los Angeles flights
Calgary to San Francisco flights
Vancouver Intl to Palm Springs flights
Pierre Elliott Trudeau Intl to San Diego flights
Winnipeg to Los Angeles flights
Abbotsford to San Francisco flights
Toronto Island to San Francisco flights
Edmonton to San Francisco flights
Hamilton to San Francisco flights
Ottawa to Las Vegas flights
Calgary to Ontario flights
Region of Waterloo Intl to Las Vegas flights
Winnipeg to Las Vegas flights
Region of Waterloo Intl to San Francisco flights
Pearson Intl to San Jose flights
Hamilton to Las Vegas flights
Pierre Elliott Trudeau Intl to Ontario flights
Ottawa to Los Angeles flights
Edmonton to Ontario flights
Pearson Intl to Sacramento flights
Pearson Intl to Fresno flights
Calgary to Santa Ana flights
Victoria to Las Vegas flights
Hamilton to Los Angeles flights
Vancouver Intl to San Jose flights
Pearson Intl to Santa Ana flights
Québec City to Las Vegas flights
Ottawa to San Francisco flights

Top 4 airlines flying from Ontario to San Jose

Discover the top 4 airlines that operate flights from Ontario to San Jose. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$232Average$462FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$284Average$343FlexibilityNo cancel feeOn-time69%
DeltaCheapest$287Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$316Average$395FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.