$116 Find Cheap Flights from Los Angeles 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 Los Angeles to Ontario departing on 1/11. 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.
1 adult
1 adult, Economy, 0 bags

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 Los Angeles to Ontario.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Ontario.
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Los Angeles to Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
Toronto1 stop$210
Ottawa
Ottawa2 stops$279
Thunder Bay
Thunder Bay2 stops$275
London
London2 stops$267
Windsor
Windsor1 stop$303
Toronto
Toronto1 stop$210
Ottawa
Ottawa2 stops$279
Thunder Bay
Thunder Bay2 stops$275
London
London2 stops$267
Windsor
Windsor1 stop$303

Book Cheap Los Angeles to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles 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 Los Angeles to Ontario

Fri, Jan 9 - Thu, Jan 15
WestJet Logo
11:50 am - 12:38 amLAX-YYZ
9h 48m1 stop
WestJet Logo
9:40 am - 6:32 pmYYZ-LAX
11h 52m2 stops
$210WestJet
Find Deal
Fri, Jan 9 - Tue, Jan 13
WestJet Logo
11:50 am - 12:38 amLAX-YYZ
9h 48m1 stop
WestJet Logo
9:40 am - 6:32 pmYYZ-LAX
11h 52m2 stops
$211WestJet
Find Deal
Fri, Jan 9 - Tue, Jan 13
WestJet Logo
11:50 am - 12:38 amLAX-YYZ
9h 48m1 stop
WestJet Logo
9:40 am - 6:32 pmYYZ-LAX
11h 52m2 stops
$212WestJet
Find Deal
Wed, Jan 14 - Mon, Jan 19
Porter Airlines Logo
1:40 pm - 9:22 pmLAX-YYZ
4h 42mnonstop
Porter Airlines Logo
10:00 am - 12:36 pmYYZ-LAX
5h 36mnonstop
$213Porter Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 10
Multiple Airlines Logo
1:40 pm - 9:22 pmLAX-YYZ
4h 42mnonstop
Multiple Airlines Logo
1:30 pm - 10:03 pmYYZ-LAX
11h 33m1 stop
$217Multiple Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19
Multiple Airlines Logo
3:25 pm - 7:05 amLAX-YUL
12h 40m2 stops
Multiple Airlines Logo
6:45 am - 12:36 pmYUL-LAX
8h 51m1 stop
$267Multiple Airlines
Find Deal
Wed, Feb 18 - Tue, Feb 24
Air Canada Logo
8:30 am - 9:35 pmLAX-YTZ
10h 05m1 stop
Air Canada Logo
4:25 pm - 10:00 pmYTZ-LAX
8h 35m1 stop
$268Air Canada
Find Deal
Thu, Jan 22 - Mon, Jan 26
Air Canada Logo
6:30 am - 9:35 pmLAX-YTZ
12h 05m2 stops
Air Canada Logo
3:30 pm - 10:00 pmYTZ-LAX
9h 30m1 stop
$273Air Canada
Find Deal
Tue, Feb 24 - Fri, Feb 27
United Airlines Logo
12:25 am - 11:55 pmLAX-YQT
20h 30m2 stops
United Airlines Logo
11:15 am - 7:27 pmYQT-LAX
11h 12m1 stop
$389United Airlines
Find Deal
Wed, Feb 25 - Fri, Feb 27
United Airlines Logo
9:01 am - 11:55 pmLAX-YQT
11h 54m2 stops
United Airlines Logo
5:00 am - 1:03 pmYQT-LAX
11h 03m2 stops
$405United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Los Angeles to Ontario flights

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

How much is a round-trip flight from Los Angeles to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Los Angeles to Region of Ontario departing in January.

What is the cheapest Los Angeles to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Los Angeles found in the last 72 hours was to Toronto, at $215 round-trip. The most popular route is from Los Angeles (LAX) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $215.

Can I save money by flying with a layover from Los Angeles to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $505 on average.

What is the cheapest month to fly from Los Angeles to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Los Angeles 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 Los Angeles to Ontario is May, when tickets cost $267 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $458 and $379 respectively.

What’s the cheapest day of the week to fly from Los Angeles to Ontario?

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

Your flight ticket price will generally be cheaper if you fly to Ontario on a Thursday and more expensive on a Sunday. On your return trip to Los Angeles, you should consider flying back on a Thursday, and avoid Mondays for better deals.

How far in advance should I book a flight from Los Angeles 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 Los Angeles 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 Los Angeles to Ontario, you should book around 4 weeks before departure, which saves you about 60% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$116
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Los Angeles to Hamilton

Flights from Los Angeles to Ontario: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Los Angeles to Ontario 
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.
DavidFlew with WestJetLAX-YYZOct 2024
If you can avoid checking yoir bags do so the YYZ bagge collection is brutally slow(30-45mins wait)
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.

FAQs - booking Ontario flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Los Angeles 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 Los Angeles 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 Los Angeles 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 Los Angeles 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 Los Angeles 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 in the afternoon, when round-trip flights cost $307 on average. Morning departures are around 51% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $590.

Reviews of the top 5 airlines serving from Los Angeles to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles 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 Los Angeles 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 394 reviews
7.0Entertainment
8.2Boarding
8.0Comfort
7.6Food
8.6Crew
Airline reviews

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

10.0 ExcellentGrace, Nov 2025MCO - YYZ
Read more Porter Airlines reviews

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

The flight was half empty yet they charged me $50 for a basic carry on! I saw how passengers of different colors were treated differently.

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

This flight to St. Johns was really good. Boarding was a breeze. We left spot on time. Seats were actually pretty good. Recliner further than I expected. Three more flights to go we will see if this is the status quo for Porter.👍

I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

The flight was fine see earlier note for the problem

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

The food was the worst I’ve had on any flight I’ve ever been on.

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

Liked in-flight wifi Did not like - nothing to complain, really. All good

Kayak was the problem! The tickets we bought did not allow for carry on or checked luggage and we ended up paying more for those services than the tickets! The paperwork Kayak provided for the receipt left the luggage policy for Westair intentionally blank. This was intentionally decietful on Kayak's part. Our additional cost was over $400.00! I will be calling customer service today asking for refunds and I will keep you informed on any review sites as I can. Keith

The keg from Edmonton to Toronto My wife found it very cold. Other than that great flight.

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

Everything was good except I was a bit disappointed that I had to pay US $150 for bags.

They cancelled and moved my flight with no email or text or any other notice. I discovered this only when I attempted to check in for my flight. Actual flying experience was above average.

Flight itself good .Landing at terminal3 and connections to terminal1,it is connections nightmare,specially for disable person

The seats very Uncomfortable, no meal and no entertainment for a 4Hours flight. Smooth Flight, Great Take off and landing. Superb crew!

The flight attendants were super! They created a cosy and warm flight atmosphere!

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

It was a smooth flight both in the sky and landing!

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Everything you need to know for your flight from Los Angeles to Ontario

Information on your arrival and departure airports