$140 Find Cheap Flights from San Jose to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to Ontario departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Ontario, as well as popular online travel agencies
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Flights Deals

Best Ontario Flight Deals from San Jose

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
Toronto1 stop$293
Ottawa
Ottawa1 stop$336
London
London3 stops$834
Windsor
Windsor2 stops$1,150
Sault Ste Marie
Sault Ste Marie2 stops$816
Toronto
Toronto1 stop$293
Ottawa
Ottawa1 stop$336
London
London3 stops$834
Windsor
Windsor2 stops$1,150
Sault Ste Marie
Sault Ste Marie2 stops$816

Cheap Flights from San Jose to Ontario (SJC-CAON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Jose to Ontario

jue., jun. 5 - lun., jun. 9
 Logo
4:33 pm - 5:20 pmSJC-YYZ
21h 47m1 stop
 Logo
8:05 pm - 10:05 amYYZ-SJC
17h 00m1 stop
jue., jun. 5 - lun., jun. 9
 Logo
6:00 am - 9:03 pmSJC-YYZ
12h 03m2 stops
 Logo
8:05 pm - 10:05 amYYZ-SJC
17h 00m1 stop
lun., jun. 9 - dom., jun. 15
Delta Logo
10:25 pm - 10:24 amSJC-YYZ
8h 59m1 stop
Delta Logo
11:39 am - 7:55 pmYYZ-SJC
11h 16m1 stop
$383Delta
Find Deal
mar., jun. 3 - jue., jun. 12
United Airlines Logo
7:00 am - 11:58 pmSJC-YYZ
13h 58m2 stops
United Airlines Logo
7:00 am - 10:39 pmYYZ-SJC
18h 39m1 stop
$389United Airlines
Find Deal
lun., jun. 9 - lun., jun. 16
Delta Logo
7:11 pm - 11:18 amSJC-YYZ
13h 07m2 stops
Delta Logo
11:39 am - 7:55 pmYYZ-SJC
11h 16m1 stop
$393Delta
Find Deal
jue., jun. 12 - dom., jun. 15
American Airlines Logo
11:24 pm - 10:50 pmSJC-YYZ
20h 26m1 stop
American Airlines Logo
6:49 am - 11:05 pmYYZ-SJC
19h 16m1 stop
$421American Airlines
Find Deal
mié., jun. 4 - mié., oct. 15
United Airlines Logo
6:26 pm - 12:56 pmSJC-YYZ
15h 30m1 stop
United Airlines Logo
11:00 am - 10:40 pmYYZ-SJC
14h 40m1 stop
$426United Airlines
Find Deal
mié., jun. 11 - lun., jun. 16
American Airlines Logo
7:19 pm - 10:21 amSJC-YYZ
12h 02m2 stops
American Airlines Logo
6:49 am - 10:34 pmYYZ-SJC
18h 45m1 stop
$431American Airlines
Find Deal
lun., jun. 16 - mar., jun. 17
Air Canada Logo
6:26 pm - 5:51 pmSJC-YUL
20h 25m2 stops
Air Canada Logo
8:15 pm - 1:21 pmYUL-SJC
20h 06m2 stops
$778Air Canada
Find Deal
mié., sep. 24 - sáb., sep. 27
Air Canada Logo
12:30 pm - 8:23 amSJC-YOW
16h 53m2 stops
Air Canada Logo
6:30 am - 5:24 pmYOW-SJC
13h 54m2 stops
$802Air Canada
Find Deal
Useful Info

KAYAK's insights & trends for San Jose to Ontario flights

Get data-powered insights and trends into flights from San Jose to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Jose to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Jose to Ontario is May, when tickets cost $383 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $628 and $517 respectively.

What’s the cheapest day of the week to fly from San Jose to Ontario?

The average price of all round-trip flights from San Jose to Ontario clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Jose to Ontario, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Ontario, Thursday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from San Jose to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Jose to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Jose to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$140
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 9% increase in price.
Flight from San Jose to Toronto Pearson Airport

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from San Jose to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Jose to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Jose to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Jose to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Jose to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Jose to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Jose to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Jose to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost $447 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Ontario is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $562.

Top 5 airlines serving from San Jose to Ontario

 
See real verified KAYAK customer reviews for airlines flying from San Jose to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Jose to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 286 reviews
7.0Entertainment
8.2Boarding
7.6Food
8.7Crew
8.1Comfort
Airline reviews

I love the 2 seats per row. More room. The crew were excellent.

10.0 ExcellentAnonymous, Apr 2025YHZ - YOW
Read more Porter Airlines reviews

I love the 2 seats per row. More room. The crew were excellent.

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

Staff were excellant. Only snacks served. Some turbulence so we were offered Free beer or wine.

The staff is always great. Just the fact that our flight was the only one delayed from Halifax when all other carries were still flying. It happen a year ago out of Toronto as well. All others were flying but our flight got cancelled 1 hr before the time of departure.

The only issue had when i mentioned about comfort was the man beside me was on the larger side and took about 1/3 of my seat where i was pressed against the wall/window of the plane for the trip.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Thanks for giving a beer to everyone in the seat infront of me and then telling me that I can’t have one because they are going to land. I guess I need to pay for a seat and then pick one in the very front of the plane

The flight was delayed by more than one hour. The terminal was consequently overcrowded and hot. We lost our car reservation and hit rush hour traffic in Boston, which added two hours stuck in traffic to our trip.

Awesome, the whole way through. Thank you, this is the new Canadian Airline benchmark.

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

We were forced to wait nearly 50 additional minutes before leaving the terminal.

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

The gate was too far away for the connecting flight

Eventless. It was a good flight and good crew. Can’t complaint.

Was a normal flight but it was delayed, and there wasn't an explanation.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

the fact air Canada changed my flight from 850 PM to 815 AM with zero regard to the plans i made that last day, the cost i lost out on as things were non refundable amd shortening my first vacation in 7 years sickened me. when we purchase a service thats whats we expect. when we want to change the service we have to pay for that option but you do whatever you want . i called accessibility dept as i have a cpap and an implanted loop recorder first person said no problem just let security know you cant go thru scanners. then i got an email saying i had to fill out a fit to fly form . which again there was NO need to have that none. But that cost me money and time to have a doctor fill it out. then when i went to check in online i was declined i had to see a person at the airport instead. i couldnt get my boarding pass like everyone elseso here I was contacting air canada so I would have a easy travel experience and it ended up being a nightmare with more work for me, more cost and time. the flight itself was great the nightmare around it i will never subject myself to again. i tried to stick with supporting Canada but Air Canada was not worth supporting. very disappointed especially with a dept that is supposed to help disabled people not make an already challenging event not worth going thru at all.

Most courteous, helpful employees and all flights were on time.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

This flight didn't happen for me because of overbooking.

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

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