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Cheap flights from San Jose to Ontario from C$ 190

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 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — YYZ
31 Mar — 7 Apr1
1 adult

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 26 March 2025.

Round-trip from

C$ 363

One-way from

C$ 190

Popular in

December

Cheapest in

September

Average price

C$ 664
1/5-5/5
  • 1/5-5/5
  • 3 total stops
  • 40h 10m total
  • San Jose to Ontario
Search Deals
29/5
  • 29/5
  • 2 total stops
  • 16h 17m total
  • San Jose to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 26 March 2025.

Thu 1/52:50 p.m.SJC - YYZ
1 stop12h 45mMultiple Airlines
Mon 5/51:30 p.m.YYZ - SJC
2 stops27h 25mMultiple Airlines
Deal found 25/3C$ 363
Sat 10/56:00 a.m.SJC - YHM
2 stops15h 41mMultiple Airlines
Sat 17/56:00 a.m.YHM - SJC
2 stops20h 27mMultiple Airlines
Deal found 25/3C$ 535
Tue 22/48:30 a.m.SJC - YYZ
1 stop11h 18mAir Canada
Tue 29/44:18 p.m.YYZ - SJC
1 stop8h 07mAir Canada
Deal found 25/3C$ 536
Tue 22/43:29 p.m.SJC - YYZ
2 stops14h 26mDelta
Tue 29/43:59 p.m.YYZ - SJC
2 stops9h 50mDelta
Deal found 25/3C$ 538
Sun 1/612:48 p.m.SJC - YYZ
2 stops20h 42mAmerican Airlines
Sun 8/66:49 a.m.YYZ - SJC
1 stop8h 31mAmerican Airlines
Deal found 25/3C$ 555
Tue 22/43:30 p.m.SJC - YYZ
2 stops22h 15mUnited Airlines
Tue 29/46:35 p.m.YYZ - SJC
3 stops25h 56mUnited Airlines
Deal found 25/3C$ 569
Sun 13/47:54 p.m.SJC - YUL
3 stops25h 45mMultiple Airlines
Sat 19/43:55 p.m.YUL - SJC
2 stops18h 34mMultiple Airlines
Deal found 25/3C$ 571
Tue 3/610:25 p.m.SJC - YUL
1 stop10h 14mDelta
Tue 10/66:10 a.m.YUL - SJC
1 stop9h 26mDelta
Deal found 26/3C$ 578
Fri 16/56:45 p.m.SJC - YUL
1 stop17h 41mUnited Airlines
Sat 24/58:05 a.m.YUL - SJC
1 stop8h 16mUnited Airlines
Deal found 26/3C$ 579
Sun 1/67:00 a.m.SJC - YUL
2 stops27h 55mAir Canada
Mon 9/68:05 a.m.YUL - SJC
1 stop15h 45mAir Canada
Deal found 25/3C$ 592
Tue 3/67:16 p.m.SJC - YUL
2 stops14h 05mAmerican Airlines
Tue 10/612:30 p.m.YUL - SJC
2 stops11h 43mAmerican Airlines
Deal found 26/3C$ 599
Thu 26/65:41 p.m.SJC - YOW
3 stops32h 44mMultiple Airlines
Sun 29/67:50 a.m.YOW - SJC
3 stops27h 34mMultiple Airlines
Deal found 25/3C$ 616

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 629,999 searches. Data last updated 26 March 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

Thu 1/5

2:50 p.m.-6:35 a.m.

1 stop12h 45m

Toronto Pearson Intl

Mon 5/5

1:30 p.m.-1:55 p.m.

2 stops27h 25m

C$ 363

San JoseHamilton

SJC - YHM

SJCYHM

San Jose

Sat 10/5

6:00 a.m.-12:41 a.m.

2 stops15h 41m

Hamilton

Sat 17/5

6:00 a.m.-11:27 p.m.

2 stops20h 27m

C$ 535

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 22/4

8:30 a.m.-10:48 p.m.

1 stop11h 18m

Toronto Pearson Intl

Tue 29/4

4:18 p.m.-9:25 p.m.

1 stop8h 07m

C$ 536

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 22/4

6:35 a.m.-7:37 p.m.

1 stop10h 02m

Toronto Pearson Intl

Tue 29/4

12:20 p.m.-9:25 p.m.

2 stops12h 05m

C$ 538

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 3/6

1:27 p.m.-11:14 p.m.

1 stop6h 47m

Toronto Pearson Intl

Sun 8/6

1:25 p.m.-10:56 p.m.

1 stop12h 31m

C$ 541

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sun 1/6

12:48 p.m.-12:30 p.m.

2 stops20h 42m

Toronto Pearson Intl

Sun 8/6

6:49 a.m.-12:20 p.m.

1 stop8h 31m

C$ 555

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Sun 13/4

7:54 p.m.-12:39 a.m.

3 stops25h 45m

Montreal Pierre Elliott Trudeau Intl

Sat 19/4

3:55 p.m.-7:29 a.m.

2 stops18h 34m

C$ 571

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Sun 1/6

7:00 a.m.-11:26 p.m.

1 stop13h 26m

Montreal Pierre Elliott Trudeau Intl

Mon 9/6

8:05 a.m.-8:50 p.m.

1 stop15h 45m

C$ 578

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Sun 13/4

6:27 p.m.-9:08 a.m.

2 stops11h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 19/4

9:15 a.m.-10:46 p.m.

1 stop16h 31m

C$ 586

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Sun 1/6

12:48 p.m.-1:44 p.m.

2 stops21h 56m

Montreal Pierre Elliott Trudeau Intl

Mon 9/6

3:40 p.m.-9:15 a.m.

2 stops20h 35m

C$ 599

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 34 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 C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 26 March 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 26 March 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from San Jose to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,789 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,891 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,608 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    For a flight from San Jose to Ontario, you will be flying from San Jose. San Jose (SJC) is just 4.6 km from the centre of the city.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 227. Users have also found prices from C$ 232 and C$ 256 on United Airlines and Delta, respectively.

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

    While some choose either San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Toronto Island, San Jose - Toronto Pearson Intl is the most popular route from San Jose 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 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 C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 airline flying from San Jose to Ontario

Discover the top airline 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 629,999 searches. Data last updated 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 463AverageC$ 710FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Jose to Ontario?

When you search for this flight from San Jose to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Jose to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Jose.

Can Cheapflights find flights from San Jose to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from San Jose? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Jose to Ontario become cheaper?

Yes! Start tracking prices for San Jose to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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