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Ontario

$108+ Cheap flights from San Jose (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. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$269
(Kiwi.com)

One-way from

$108
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$465
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. 6% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
vie. 10/38:15 amSJC - YYZ
1 stop8h 43mMultiple Airlines
lun. 10/69:45 amYYZ - SJC
1 stop11h 12mMultiple Airlines
Deal found 7/3$269
This Mytrip deal was found by Cheapflights users on 7/3. 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.
jue. 9/116:00 amSJC - YHM
2 stops15h 40mMultiple Airlines
jue. 9/186:00 amYHM - SJC
3 stops21h 24mMultiple Airlines
Deal found 7/3$317
This Tripair deal was found by Cheapflights users on 7/1. 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 Tripair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/86:24 pmSJC - YYZ
2 stops11h 55mUnited Airlines
vie. 8/154:18 pmYYZ - SJC
1 stop7h 44mUnited Airlines
Deal found 7/1$324
This Mytrip deal was found by Cheapflights users on 7/3. 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.
dom. 8/1712:39 pmSJC - YTZ
3 stops20h 07mMultiple Airlines
dom. 8/243:25 pmYTZ - SJC
3 stops23h 19mMultiple Airlines
Deal found 7/3$355
This Mytrip deal was found by Cheapflights users on 7/3. 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.
lun. 8/2512:39 pmSJC - YUL
2 stops20h 19mMultiple Airlines
mié. 9/37:50 pmYUL - SJC
1 stop14h 30mMultiple Airlines
Deal found 7/3$391
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/1712:39 pmSJC - YOW
2 stops18h 42mMultiple Airlines
dom. 8/245:05 pmYOW - SJC
2 stops21h 39mMultiple Airlines
Deal found 7/3$417
This Delta deal was found by Cheapflights users on 7/3. 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.
vie. 8/85:40 pmSJC - YUL
2 stops15h 17mDelta
mar. 8/126:00 amYUL - SJC
2 stops14h 04mDelta
Deal found 7/3$476
This Mytrip deal was found by Cheapflights users on 7/3. 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.
dom. 8/176:00 amSJC - YXU
3 stops20h 14mMultiple Airlines
dom. 8/248:00 pmYXU - SJC
2 stops29h 30mMultiple Airlines
Deal found 7/3$566
This Mytrip deal was found by Cheapflights users on 7/1. 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.
lun. 7/146:30 amSJC - YQG
3 stops33h 25mMultiple Airlines
jue. 7/177:45 pmYQG - SJC
2 stops31h 09mMultiple Airlines
Deal found 7/1$593
This American Airlines deal was found by Cheapflights users on 7/3. 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.
mié. 8/66:00 amSJC - YUL
2 stops26h 36mAmerican Airlines
mar. 8/125:29 pmYUL - SJC
2 stops18h 50mAmerican Airlines
Deal found 7/3$601
This United Airlines deal was found by Cheapflights users on 7/3. 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.
lun. 10/276:40 amSJC - YUL
1 stop30h 17mUnited Airlines
vie. 10/317:00 pmYUL - SJC
2 stops30h 28mUnited Airlines
Deal found 7/3$625
This Delta deal was found by Cheapflights users on 7/3. 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.
dom. 8/172:30 pmSJC - YXU
2 stops11h 44mDelta
dom. 8/246:00 amYXU - SJC
2 stops13h 07mDelta
Deal found 7/3$646

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 julio 3, 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

vie. 10/3

8:15 am-7:58 pm

1 stop8h 43m

Toronto Pearson Intl

lun. 10/6

9:45 am-5:57 pm

1 stop11h 12m

$269

San JoseHamilton

SJC - YHM

SJCYHM

San Jose

jue. 9/11

6:00 am-12:40 am

2 stops15h 40m

Hamilton

jue. 9/18

6:00 am-12:24 am

3 stops21h 24m

$317

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

vie. 8/8

6:24 pm-9:19 am

2 stops11h 55m

Toronto Pearson Intl

vie. 8/15

4:18 pm-9:02 pm

1 stop7h 44m

$324

San JoseToronto

SJC - YTZ

SJCYTZ

San Jose

dom. 8/17

12:39 pm-11:46 am

3 stops20h 07m

Toronto Island

dom. 8/24

3:25 pm-11:44 am

3 stops23h 19m

$355

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

lun. 8/25

12:39 pm-11:58 am

2 stops20h 19m

Montreal Pierre Elliott Trudeau Intl

mié. 9/3

7:50 pm-7:20 am

1 stop14h 30m

$391

San JoseOttawa

SJC - YOW

SJCYOW

San Jose

dom. 8/17

12:39 pm-10:21 am

2 stops18h 42m

Ottawa

dom. 8/24

5:05 pm-11:44 am

2 stops21h 39m

$417

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

vie. 8/8

5:40 pm-11:57 am

2 stops15h 17m

Montreal Pierre Elliott Trudeau Intl

mar. 8/12

6:00 am-5:04 pm

2 stops14h 04m

$476

San JoseLondon

SJC - YXU

SJCYXU

San Jose

dom. 8/17

6:00 am-5:14 am

3 stops20h 14m

London

dom. 8/24

8:00 pm-10:30 pm

2 stops29h 30m

$566

San JoseWindsor

SJC - YQG

SJCYQG

San Jose

lun. 7/14

6:30 am-6:55 pm

3 stops33h 25m

Windsor

jue. 7/17

7:45 pm-11:54 pm

2 stops31h 09m

$593

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

mié. 8/6

6:00 am-11:36 am

2 stops26h 36m

Montreal Pierre Elliott Trudeau Intl

mar. 8/12

5:29 pm-9:19 am

2 stops18h 50m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 44 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 $243). Flying from San Jose to Region of Ontario in August is currently the most expensive (average of $348). 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 julio 3, 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.

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 julio 3, 2025.
Read through reviews of airlines operating flights from San Jose to Ontario, such as Alaska 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
WestJet
7.2
Good
2,917 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

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

    One-way options have recently been found by users for as low as $161 on United Airlines. Other airlines that offer cheap prices include Delta from $164 and American Airlines from $166 one-way.

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

    When deciding which route to take from San Jose to Region of Ontario consider San Jose - Toronto Pearson Intl, San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Ottawa 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 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 $243). Flying from San Jose to Region of Ontario in August is currently the most expensive (average of $348). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$185Average$447FlexibilityNo cancel feeOn-time67%
DeltaCheapest$239Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$323Average$700FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$435Average$567FlexibilityNo cancel feeOn-time71%

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