$58 Find Cheap Flights from California 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 California to Ontario departing on 6/4. 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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Low season

January

High season

July

Cheapest flight

$58
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Los Angeles to Toronto Pearson Airport

Flights from California to Ontario: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from California to Ontario 
Verified travelerFlew with United AirlinesSFO-YYZSep 2024
If you do not find enough space for your personal belongs( bags or luggage), you can ask the crew for help. They are kindly and friendly, and they can help you.
Verified travelerFlew with Air TransatLAX-YYZNov 2024
Food is not provided, so be sure to bring some with you, or be prepared to just buy.
Verified travelerFlew with Air CanadaLAX-YYZNov 2024
Make sure you are prepared, and review all the rules and regulations.
DavidFlew with WestJetLAX-YYZOct 2024
If you can avoid checking yoir bags do so the YYZ bagge collection is brutally slow(30-45mins wait)
SMSFlew with Air CanadaLAX-YYZJul 2024
All gulf and far eastern flight have good boarding and dining facilities.
ElizabethFlew with Air CanadaSFO-YYZMay 2024
When delayed happened I would suggest for the crew to let passengers board in and just wait for the one crew missing to arrive and joined the crew as soon as crew member arrives other than passengers waiting this helps time consuming . And passenger not rushing for connecting flight.
HazelFlew with Air CanadaLAX-YYZApr 2024
Be appreciative of the crew, be patient generally and follow the rules
Verified travelerFlew with Porter AirlinesSFO-YYZMar 2024
Be on time, don’t carry so much cumbersome baggage on board.
STEVEFlew with Air CanadaPSP-YYZApr 2024
Rouge seats are terrible for comfort. Might make sense to fly via Denver
Verified travelerFlew with United AirlinesLAX-YYZJan 2024
Take earphones to watch movies, we had the ones United airlines gave us on the way down so we were good.
MarcoFlew with Air CanadaLAX-YYZDec 2023
Unfortunately Air canada has the most direct flights from LA.

FAQs for booking flights from California to Ontario

  • How does KAYAK find such low prices on flights from California 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 California to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from California 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 California 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 California 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 California 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 California to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from California to Ontario

Need help choosing which airline to fly with from California 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
DeltaOverall score based on 8070 reviews
7.9Entertainment
8.5Crew
8.2Boarding
8.0Comfort
7.3Food
Airline reviews

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

10.0 ExcellentStephen, Feb 2025SFO - JFK
Read more Delta reviews

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.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

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.

We were given a complimentary seat upgrade which was so unexpected but so lovely!

Porter was excellent. Boarding was a breeze. The seats were a little uncomfortably but the overall trip was excellent.

Only packaged snacks were served. It was a flight at lunchtime and a hot meal would have been a great.

Reserve check-in was very slow compared to regular check-in. Internet was slow

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

In general ok, my only issue is that they had no hot items for purchase. I had very little time in my connection due to baggage/customs/TSA, thag I barely even had a chance for a stop at the washroom and buy water, to make it to my gate when they started boarding. I had nothing to eat because the trip started early, so I was ready to purchase, and they had nothing except for dry items like snacks. I had to purchase a mediocre, overpriced cheese and fruit board, instead of at least a pizza or sliders that I was planning on getting. Other than that, it was fine. But that’s typical Air Canada, to not have enough.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

Plane should have entertainment, instead of people paying to use wifi

The cancelation of my flight from Toronto to Edmonton without any solution given to me for my next flight. Very poor connection from Toronto to Edmonton

Too squished in seats. I'm 110 lbs and 5'6....can't imagine being any bigger and flying

Flight was delayed. Arrived in Vancouver at 3 am. Not a great experience.

Original flight canceled and communicated poorly. A series of gate changes , delays and plane changes followed. Even after the entire flight boarded there was another plane changes followed. Food vouchers provided to my travel companion but not to me despite being on the same reservation. No in flight entertainment. The entire experience was terrible although the flight crew were great.

Flight was on time. Online check in capabilities made things quick and easy. Zone boarding was enforced, which I appreciate. Everyone was not lining up ahead of their zone being called. Crew was professional and friendly.

Dogs. Dogs. Dogs ! Who the hell thought letting dogs on board was a good idea ? Yapping dogs on both flights ! They ruin the experience for everyone else around because you try to accommodate everyone. Please send me a refund.

We booked Premiere (their version of first class) and Premium Economy seats. We boarded an old swoop flight with all coach seating. No benefit to paying higher fare and no apology or reimbursement.

Flight was delayed 1.5 hours. Baggage took 45 minutes to reach carousel

We have to wait long time at airport. Plane left from 8 pm to 1:35 am.Long time waiting

My oroginal flight was delayed several times. Finally the flight was cancelled. I had to spend additional money and book another flight with Porter at another airport Fort Lauderdale International Airport or I would miss the event I had in Toronto. I did not board the rescheduled flight which was after my event.

The staff could have been friendlier. And Having the flight on time would have been much more convenient.

Excellent We were very empress with this Airline as once our flight was canceled, they immediately rebooked our flight and provided accommodations for hotels….Thank you!

Awful. Flight screen didn’t work. Seat didn’t recline.

I liked nothing about this flight nor the incredible lack of service and communication on this flight from the Captain to every staff member. Arrogant, entitled and lacking any kind of basic customer service

Everything should be better, terrible flight and airport service. Delayed for 6 hours, flying around for 1 hr, and keeping us on a plane for another 2,5 -3hrs.

I booked my flight ni November and was placed on standby? How does this happen. Flight was 1 1/2 hours late departure plane was switched to a smaller plane easy to tell this is a government run company they don’t care about anyone

Boarding was a disaster one person checking in 200 people took 25 min to check in zone 1&2.

Delayed in Fort Lauderdale 3 hours , gave us $15 coupon for meals at 20:50, when most of the restuarant closed at 21:00.

Book cheap flights from California to Ontario

Recent round-trip flight deals

5/28Wed
2 stopsWestJet
11h 51mLAX-YYZ
6/4Wed
1 stopWestJet
9h 12mYYZ-LAX
$158
5/28Wed
2 stopsWestJet
11h 51mLAX-YYZ
6/1Sun
nonstopWestJet
5h 25mYYZ-LAX
$159
5/28Wed
nonstopPorter Airlines
4h 53mLAX-YYZ
6/4Wed
nonstopPorter Airlines
5h 20mYYZ-LAX
$179
6/11Wed
nonstopPorter Airlines
4h 53mLAX-YYZ
6/17Tue
nonstopPorter Airlines
5h 20mYYZ-LAX
$186
4/24Thu
nonstopAir Canada
4h 51mLAX-YYZ
5/1Thu
nonstopAir Canada
5h 24mYYZ-LAX
$200
7/3Thu
nonstopUnited Airlines
4h 49mLAX-YYZ
7/7Mon
nonstopUnited Airlines
5h 18mYYZ-LAX
$217
5/20Tue
1 stopUnited Airlines
13h 49mLAX-YYZ
5/23Fri
nonstopUnited Airlines
5h 28mYYZ-LAX
$227
4/6Sun
nonstopAir Canada
4h 51mLAX-YYZ
4/9Wed
nonstopAir Canada
5h 24mYYZ-LAX
$262
4/24Thu
1 stopDelta
7h 38mONT-YYZ
5/1Thu
1 stopDelta
8h 51mYYZ-ONT
$353
3/20Thu
1 stopDelta
6h 54mONT-YYZ
3/24Mon
1 stopDelta
9h 56mYYZ-ONT
$360

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Recent one-way flight deals

6/4Wed
2 stopsWestJet
11h 03mLAX-YYZ
$58
5/12Mon
2 stopsWestJet
14h 33mLAX-YYZ
$64
5/2Fri
nonstopPorter Airlines
4h 53mLAX-YYZ
$75
5/10Sat
nonstopPorter Airlines
4h 53mLAX-YYZ
$79
5/24Sat
nonstopUnited Airlines
5h 00mLAX-YYZ
$85
6/15Sun
1 stopUnited Airlines
12h 16mLAX-YYZ
$94
5/1Thu
1 stopDelta
8h 14mLAX-YYZ
$132
4/20Sun
1 stopDelta
9h 16mSAN-YYZ
$133
3/23Sun
nonstopAir Canada
4h 52mSFO-YYZ
$146
5/20Tue
nonstopAir Canada
5h 26mLAX-YUL
$147

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Last minute flights from California to Ontario

Last minute flight, train and bus deals

3/6Thu
multi-stop
28h 20mLAX-YYZ
3/17Mon
multi-stop
10h 00mYYZ-LAX
$241
3/6Thu
multi-stop
29h 09mSAN-YYZ
3/12Wed
multi-stop
15h 05mYYZ-SAN
$246
3/4Tue
multi-stopPorter Airlines
8h 10mLAX-YUL
3/25Tue
multi-stopPorter Airlines
8h 40mYUL-LAX
$305
3/5Wed
nonstopPorter Airlines
4h 45mSAN-YYZ
3/12Wed
nonstopPorter Airlines
5h 45mYYZ-SAN
$419
3/8Sat
multi-stopUnited Airlines
7h 44mLAX-YYZ
3/17Mon
nonstopUnited Airlines
5h 21mYYZ-LAX
$450
3/8Sat
multi-stopUnited Airlines
9h 56mLAX-YYZ
3/16Sun
multi-stopUnited Airlines
9h 45mYYZ-LAX
$465
3/7Fri
nonstopAir Canada
4h 52mSFO-YYZ
3/16Sun
nonstopAir Canada
6h 07mYYZ-SFO
$805
3/6Thu
multi-stopAir Canada
8h 20mLAX-YTZ
3/13Thu
multi-stopAir Canada
10h 55mYTZ-LAX
$859
3/6Thu
multi-stopWestJet
9h 06mLAX-YYZ
3/9Sun
multi-stopWestJet
11h 54mYYZ-LAX
$1,222
3/5Wed
multi-stopWestJet
9h 06mLAX-YYZ
3/12Wed
multi-stopWestJet
10h 54mYYZ-LAX
$1,261

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Everything you need to know for your flight to Ontario

Cabin class types available on flights to California

Cabin classes available on flights to California. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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