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Find cheap flights from London Heathrow Airport to Ontario from £191

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Ontario departing on 10/9. 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
0 bags
Sat 6/7
Sat 13/7

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Best Ontario Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Toronto
Toronto2 stops£433
Ottawa
Ottawa1 stop£459
London
London2 stops£1,316
Windsor
Windsor2 stops£572
Thunder Bay
Thunder Bay1 stop£528
North Bay
North Bay1 stop£571
Timmins
Timmins2 stops£579

Good to know - Cheap tickets from London Heathrow Airport to Ontario

Low season

January

High season

July

Cheapest flight

£191
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from London Heathrow Airport to Toronto Pearson Airport

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 London Heathrow Airport to Ontario.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ontario with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 to Ontario from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from London Heathrow Airport to Ontario

  • Looking for a cheap flight from London Heathrow Airport to Ontario? 25% of our users found tickets from London Heathrow Airport to Ontario for the following prices or less: Toronto £517 one-way - £458 round-trip
  • Morning departure is around 22% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Heathrow to Ontario

Need help choosing which airline to fly with from Heathrow 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.
7.8
China SouthernOverall score based on 238 reviews
8.4Crew
8.1Boarding
7.8Comfort
7.6Entertainment
7.4Food
Airline reviews

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

6.0 GoodMichelle, Apr 2024SFO - CAN
Read more about China Southern reviews

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

Wuhan - Dubai. Old plane: 1. Only USB charger. No power outlet to plug in.. 2. Super narrow seat layout 3. Toilet cover consistently fell down and hit my back when sitting on it.. :( 4. Entertainment system touch screen not sensitive, and need to press hard or use finger tips to hit. Crew were very nice and accommodating though.

1. I got very poor check in experience with the counter lady . This is the first airline I ever experienced that no combine check in weight allow . Even we have 4 of us but weight counter by piece . So we wasted lot of time argue and repack . This is super crazy 2. Next I left my Samsung tablet on the plane . And I started to escalate and finally spoke to southern airline lost and found in Malaysia and the amazing answer she give is : system nothing found and please try to call southern airline in china 🧐 . I have been flying many other airlines but this is my first encounterment with such irresponsible airline response and no empathy given to customer . My feeling is nobody bother whether how customer like me feel and I’m just too small for the management to take note .

No red vine, no whiskey, no vodka. No that I wanted all of them at once but still...

During flight, some passengers perform stomping leg exercises which disturb the comfort (I.e. sleep) of other passengers.

No good but was short flight. Both of our China Southern flights were on time. No surprises.

The flight was okay it was the kayak customer service that was poor, I have been trying to change my name on my flight ticket 3 days before my flight and nothing got done about it even tho I messaged so many times and phoned, all I got in return was that is was being processed and still to this day nothing has been done about it, I think it’s disgusting and un needed stress to the trip.

The food was perfect. The boarding process is a bit long. Given the late boarding time, I felt very tired by the time I was seated.

Quality flight from start to finish. Customer service is evidently very important to this company. The staff really exceeded expectations.

Traveling with the Chinese airlines , their service superior to the US Airlines , they are much more friendly and the seats are comfortable , In the past I flew with United , now ,United Airline will become history for me .

The overall flight went well and the aircrew was pleasant.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

The boarding experience was as expected and went well. The plane's economy seating plan is not designed for a positive customer experience but rather for company profit. When the passenger in front of me reclined, the distance from the screen to my face was the span of my hand (thumb tip to pinky fingertip). There is no such thing as personal space in this setting. This results in the domino effect, for when I recline the person in back of me reclines and so it goes. This is not to say that reclining is the answer as the experience is not increased, but simply managed.

Crew experience was more transnational, seats were so close together (LtoR and FtoB) that it was difficult to enjoy much of anything. When the person in front leaned back, there is no space for me. Sadly it was a flight to be endured not experienced.

My seat was sold off to someone else. Had to wait 9 hours to catch the next filght. Definitely will never use Cathay Pacific again. Bad, very bad airline. will comment on google reviews too.

Very poor check-in experience, and flight meal service was very disappointing with no drinks service or hot meal.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

Very comfortable flights. Not so many new releases in terms of films.

Everything went smooth. All flights were on time No changing gates, . No changing flights . It was like a completely different airlines tha n the last time I used Cathay Pacific . The last flight, 2 months ago, I had before this one was from Philippines also . I got changed in Manila and was told it only added 2 hours onto my flight . My 20 hour return trip ended up being 30 hours return with a 10.0 hour layover in New York with no seats anywhere . Everyone was sleeping or sitting on the floor . Unlike the hotel I was given in Manila to wait for this flight home . I never thought I would use Cathay Pacific again . But I did and this time you were great! I should have complained about the flight and layover from Hell a couple months ago. Consider that I am complaining about that august/23 flight now . Thank you got the great flying experience on my way home from philippines .

Everything was good food could be better but ok for economy on my 2nd flight the head ph jack are bad you have to hold pushed in to hear anything but other then that very nice service

On the flight back the seats where very uncomfortable, they where so bad that my back started to hurt after the first 2 hours. I can sit in a wooden chair for 2 hours. But these where just horrible, it just shows how cheap the airline has become. And the cabin was heated all those people in a heated cabin during a night flight. It was clear the climate control was not working. To top that off you are not even offered a glass of water, these people are animals.

We purchased a Go First Pass for 10 Euros each so we could board first, but everyone was able to board at the same time so we wasted 20 Euros. The flight left ab out 15 minutes late and was not allowed to land at Healthrow so we had to circle Heathrow for about 45 minutes. This caused us to almost miss our flight from Heathrow to Atlanta.

Severely delayed with no notice. Could have arrived at the airport hours later had we been informed of the delay

Once the boarding sign went on and all passengers gathered in line, we were left waiting standing up for almost an hour because there was a delay.

It would be nice to have vegan options for meals. The entertainment was not working on the the way to Austria. It was only available near the end of flight to Canada. The service was excellent.

Flight was delayed by approx 1 hour. The boarding process and the flight itself were very good, slightly tight squeeze for my legs but overall happy.

The business class layout on this plane is tightly packed and atrocious with no sense of privacy.

Flight was meant to leave at 8:30pm but there was a 2 hour delay 😞

Airmalta does not include meals in their flights and neither offers entertainment.

Pros: "The crew was amazing and took measures to make the flight Covid safe"
Cons: "The food was not the best and Twistees weren't available. Also the seats felt narrow"

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

Flight was delayed for 2 hours for no reason, then we spent almost an hour after boarding because of the weather conditions. If we left on time we could avoid that 😾

Pros: "Because of our delay, we flew with Air Thai instead of Air China....much better airline"
Pros: "The crew was accommodating during the flight but spoke very little English and could not help with information on connecting flight."
Cons: "We missed our connecting flight due to a delay and the airline would not let us through because we could have made our second flight...."
Pros: "The price"
Cons: "Staff was not helpful and kind of rude unless you spoke their language. Food options were terrible and not very comfortable seat for 13+ hr flight."
Cons: "Connecting though Beijing from Taipei to LAX is not recommended if you can avoid it!"
Pros: "The food was good. It was nice that they supply wet hot towels before each meal. The seat was comfortable with the price I paid for. The rest room is nice and clean and quite spacious. The L’occitane toiletery bag was nice."
Cons: "It would be nice to supply mouthwash in the rest room. It would be nice to have a foot step at the bottom to open the trash container. The comforter is not washed and smells."
Cons: "Even for business class there is no TV screen on each seat. Just one small TV screen on the ceiling for a few rows to share. It would be much better with TV screen on each seat. I was sitting in the first row business class and the air hostess skipped me and didn’t give me a slipper. She gave me a used slipper at the end only without a packet. This is unprofessional to treat a business class passenger"
Cons: "Seats are narrow, leg room limited, and food is minimal."
Cons: "Seats are narrow, leg room poor, and food service is minimal."

My seat was in a good row. In our section it was the first row. But it was difficult tooperate seat entertainment features > table, screen, even though I often fly.

Better and more attentive crew and more food options. Leg space is very tight.

We left our sons tablet on the British Airways plane And we can’t get a hold of anyone to try to locate it. I have to call multiple numbers.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

Flight boarded and took off late for unknown reasons. Crew insisted we check our hand luggage due to full flight, which it was not even close to full. Then had to wait almost an hour a and a half for the hand luggage to come onto the luggage belt since it was loaded last. This came after many hours of traveling pregnant with my 6 year old daughter. Really didn’t appreciate the unnecessary delays. What the hell?

Left late. Crowded like cattle. Standing and waiting. Food on board getting worse.

Terrible- the flight time was delayed and then I was denied boarding because I arrived at the new time of departure

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Book cheap flights from London to Ontario

Cheapest flights to Ontario from London found in 2024

Recent return flight deals

4/9Wed
1 stopTAP AIR PORTUGAL
30h 20mLHR-YUL
11/9Wed
1 stopTAP AIR PORTUGAL
14h 00mYUL-LHR
£405
4/9Wed
1 stopTAP AIR PORTUGAL
30h 20mLHR-YUL
11/9Wed
1 stopTAP AIR PORTUGAL
14h 00mYUL-LHR
£405
1/9Sun
1 stopLufthansa
14h 20mLHR-YUL
13/9Fri
directLufthansa
6h 40mYUL-LHR
£427
16/9Mon
1 stopLufthansa
12h 35mLHR-YUL
23/9Mon
directLufthansa
6h 40mYUL-LHR
£430
8/11Fri
2 stopsSWISS
38h 20mLHR-YUL
22/11Fri
1 stopSWISS
23h 50mYUL-LHR
£480
26/6Wed
2 stopsSWISS
34h 52mLHR-YYZ
3/7Wed
2 stopsSWISS
12h 55mYYZ-LHR
£482
22/6Sat
1 stopBritish Airways
11h 29mLHR-YYZ
18/3Tue
directBritish Airways
7h 05mYYZ-LHR
£502
22/6Sat
1 stopBritish Airways
11h 29mLHR-YYZ
21/3Fri
directBritish Airways
7h 05mYYZ-LHR
£507
22/6Sat
1 stopFinnair
19h 56mLHR-YYZ
18/3Tue
directFinnair
7h 05mYYZ-LHR
£512
16/6Sun
1 stopFinnair
18h 01mLHR-YYZ
3/7Wed
1 stopFinnair
13h 00mYYZ-LHR
£527

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Recent one-way flight deals

10/9Tue
1 stop
12h 29mLHR-YYZ
£191
16/9Mon
2 stops
33h 55mLHR-YYZ
£207
18/9Wed
2 stops
32h 50mLHR-YYZ
£208
9/9Mon
2 stops
33h 55mLHR-YYZ
£214
10/10Thu
directLufthansa
7h 05mLHR-YUL
£380
27/6Thu
directLufthansa
7h 55mLHR-YYZ
£382
9/11Sat
directFinnair
7h 25mLHR-YUL
£519
6/9Fri
1 stopVirgin Atlantic
28h 30mLHR-YOW
£931
29/6Sat
1 stopAir France
13h 35mLHR-YOW
£1,459
8/7Mon
1 stopVirgin Atlantic
10h 50mLHR-YOW
£2,653

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Last minute flights from Heathrow to Ontario

Last minute flight, train and bus deals

11/6Tue
multi-stopAir Canada
15h 35mLHR-YUL
16/6Sun
multi-stopAir Canada
8h 50mYUL-LHR
£423
11/6Tue
directAir Canada
7h 05mLHR-YUL
16/6Sun
multi-stopAir Canada
8h 50mYUL-LHR
£429
10/6Mon
directLufthansa
7h 05mLHR-YUL
16/6Sun
directLufthansa
6h 40mYUL-LHR
£484
7/6Fri
multi-stopLufthansa
24h 16mLHR-YUL
20/6Thu
multi-stopLufthansa
23h 45mYUL-LHR
£506
8/6Sat
multi-stopBritish Airways
11h 29mLHR-YYZ
16/7Tue
directBritish Airways
7h 15mYYZ-LHR
£511
8/6Sat
multi-stopBritish Airways
11h 29mLHR-YYZ
17/7Wed
directBritish Airways
7h 15mYYZ-LHR
£525
11/6Tue
multi-stopFinnair
13h 41mLHR-YYZ
16/7Tue
multi-stopFinnair
11h 00mYYZ-LHR
£530
11/6Tue
multi-stopSWISS
34h 44mLHR-YTZ
17/6Mon
multi-stopSWISS
28h 10mYTZ-LHR
£552
7/6Fri
multi-stopSWISS
15h 49mLHR-YTZ
12/1Sun
multi-stopSWISS
36h 50mYTZ-LHR
£581
8/6Sat
multi-stopFinnair
13h 41mLHR-YYZ
10/6Mon
directFinnair
7h 10mYYZ-LHR
£610

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London Heathrow Airport - Ontario Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

Ontario - London Heathrow Airport

Cabin classes:

£1,682
£874
£386