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Cheap flights from London Heathrow Airport to Ontario from £382

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 23/9. 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.
LHR — ONT
4 6月 — 11 6月1
1 adult
週二 4/6
週二 11/6

The best prices from London Heathrow to Ontario are usually found in November or February, booked 63 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Heathrow to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 5月 2024.

Popular in

August

Cheapest in

November

Average price

£626

Round-trip from

£431
High demand for flights, 33% potential price rise
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Best time to find cheap flights, 26% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From London Heathrow to Ontario
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What is the cheapest day to fly round-trip from London Heathrow Airport to Ontario?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 66% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from London Heathrow Airport to Ontario?

Users have found that booking a flight from London Heathrow Airport to Ontario at least 50 days early can save you up to 13% on average compared to booking a flight this week. If booking 50 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Ontario for as little as £495 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £598 for flights departing within the next 3 days.

What is the cheapest month to fly from London Heathrow Airport to Ontario?

Flights from London Heathrow Airport to Ontario lean towards being more expensive in July. Prices are generally better when you fly from London Heathrow Airport to Ontario in November, with the cheapest ticket starting at £349.

What is the cheapest time of day to fly from LHR to ONT?

It’s optimal to fly from London Heathrow Airport to Ontario in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at midday.

Cheap KLM flights from Heathrow to Ontario

Explore cheap flight options specifically provided by KLM for the route between Heathrow and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 5月 2024.
Peruse some of the lowest-priced KLM flights we've found from London to Ontario. Be sure to come back soon if the deals available don't appeal to you at this time.
週二 17/911:35LHR - ONT
1 stop15h 47mKLM
週五 27/913:42ONT - LHR
1 stop12h 18mKLM
Deal found 30/5£466
週三 19/611:00LHR - ONT
1 stop13h 16mKLM
週三 26/613:25ONT - LHR
1 stop12h 35mKLM
Deal found 29/5£492
週三 19/611:00LHR - ONT
1 stop13h 16mKLM
週五 28/613:25ONT - LHR
1 stop12h 35mKLM
Deal found 30/5£639
週三 5/611:00LHR - ONT
1 stop13h 36mKLM
週三 12/613:25ONT - LHR
1 stop12h 35mKLM
Deal found 29/5£1,075
週三 5/612:45LHR - ONT
1 stop15h 21mKLM
週二 18/611:30ONT - LHR
2 stops23h 55mKLM
Deal found 30/5£3,023

Cheap American Airlines flights from Heathrow to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Heathrow and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 5月 2024.
Have a look at some of the cheapest available American Airlines flights departing from London and landing in Ontario. Make sure to examine the flight information before completing your reservation.
週三 6/1111:55LHR - ONT
1 stop13h 57mAmerican Airlines
週日 10/1123:11ONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 30/5£428
週一 23/913:05LHR - ONT
1 stop14h 39mAmerican Airlines
週四 3/1012:47ONT - LHR
1 stop13h 53mAmerican Airlines
Deal found 30/5£429
週五 1/1114:25LHR - ONT
1 stop14h 18mAmerican Airlines
週日 10/1123:11ONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 30/5£458
週一 9/913:05LHR - ONT
1 stop14h 39mAmerican Airlines
週六 21/916:53ONT - LHR
1 stop12h 42mAmerican Airlines
Deal found 30/5£459
週一 30/912:15LHR - ONT
1 stop16h 27mAmerican Airlines
週一 7/1016:45ONT - LHR
1 stop12h 50mAmerican Airlines
Deal found 29/5£466
週三 12/612:00LHR - ONT
1 stop18h 09mAmerican Airlines
週三 26/622:45ONT - LHR
1 stop24h 55mAmerican Airlines
Deal found 30/5£490
週一 1/715:15LHR - ONT
1 stop15h 44mAmerican Airlines
週六 30/1113:28ONT - LHR
1 stop14h 42mAmerican Airlines
Deal found 29/5£497
週六 8/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
週一 24/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£520
週六 8/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
週一 24/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£521

Cheap Heathrow to Ontario flights in May & June 2024

Find cheap flight options from Heathrow to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Prices were last updated on 30 5月 2024.
Scroll through some of the best deals on flights from London to Ontario in 2024. For more flight deals, be sure to check back very soon.
週一 10/612:00LHR - ONT
1 stop18h 09mBritish Airways
週一 17/608:10ONT - LHR
1 stop14h 15mBritish Airways
Deal found 30/5£462
週三 12/612:00LHR - ONT
1 stop14h 57mBritish Airways
週三 26/606:00ONT - LHR
1 stop16h 25mBritish Airways
Deal found 30/5£470
週三 12/613:05LHR - ONT
1 stop17h 04mBritish Airways
週三 26/606:00ONT - LHR
1 stop16h 25mBritish Airways
Deal found 29/5£472
週三 12/612:15LHR - ONT
2 stops17h 25mFinnair
週三 26/622:45ONT - LHR
1 stop24h 55mFinnair
Deal found 30/5£475
週三 12/608:10LHR - ONT
2 stops18h 27mFinnair
週三 26/622:45ONT - LHR
1 stop24h 55mFinnair
Deal found 29/5£477
週三 12/608:10LHR - ONT
2 stops18h 27mFinnair
週三 26/619:26ONT - LHR
2 stops18h 14mFinnair
Deal found 29/5£477
週三 5/609:55LHR - ONT
2 stops20h 42mDelta
週二 11/605:35ONT - LHR
2 stops20h 40mDelta
Deal found 29/5£479
週三 12/612:00LHR - ONT
1 stop18h 09mAmerican Airlines
週三 26/622:45ONT - LHR
1 stop24h 55mAmerican Airlines
Deal found 30/5£490
週三 12/608:40LHR - ONT
2 stops17h 57mAmerican Airlines
週三 19/622:45ONT - LHR
1 stop29h 25mAmerican Airlines
Deal found 29/5£491

Heathrow to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 5月 2024.
Scroll through some of the best deals on flights from London to Ontario in 2024. For more flight deals, be sure to check back very soon.
週二 10/913:05LHR - ONT
1 stop14h 39mBritish Airways
週二 24/910:50ONT - LHR
1 stop13h 10mBritish Airways
Deal found 30/5£400
週三 6/1111:55LHR - ONT
1 stop13h 57mAmerican Airlines
週日 10/1123:11ONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 30/5£428
週一 23/913:05LHR - ONT
1 stop14h 39mAmerican Airlines
週四 3/1012:47ONT - LHR
1 stop13h 53mAmerican Airlines
Deal found 30/5£429
週三 18/916:25LHR - ONT
1 stop15h 01mIberia
週一 23/910:50ONT - LHR
1 stop13h 10mIberia
Deal found 30/5£430
週二 10/913:05LHR - ONT
1 stop14h 39mBritish Airways
週二 15/1016:45ONT - LHR
1 stop12h 50mBritish Airways
Deal found 30/5£432
週一 16/912:00LHR - ONT
1 stop17h 42mIberia
週日 22/914:52ONT - LHR
1 stop31h 33mIberia
Deal found 30/5£438
週二 10/916:25LHR - ONT
1 stop15h 01mIberia
週二 24/908:41ONT - LHR
1 stop13h 44mIberia
Deal found 30/5£446
週五 1/1114:25LHR - ONT
1 stop14h 18mAmerican Airlines
週日 10/1123:11ONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 30/5£458
週一 9/913:05LHR - ONT
1 stop14h 39mAmerican Airlines
週六 21/916:53ONT - LHR
1 stop12h 42mAmerican Airlines
Deal found 30/5£459

Heathrow to Ontario flights leaving soon

Find last-minute flight options from Heathrow to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 5月 2024.
Have a look at some of the last-minute flights available departing from London to Ontario. It's wise to confirm all flight details are correct before booking.
週六 8/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
週一 24/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£520
週六 8/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
週一 24/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£521
週四 6/615:15LHR - ONT
1 stop15h 44mAmerican Airlines
週四 13/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£521
週四 6/615:15LHR - ONT
1 stop15h 44mAmerican Airlines
週四 13/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 30/5£528
週五 7/616:25LHR - ONT
1 stop15h 34mMultiple Airlines
週日 23/623:59ONT - LHR
1 stop22h 26mMultiple Airlines
Deal found 30/5£530
週四 6/613:05LHR - ONT
1 stop18h 54mBritish Airways
週日 7/723:59ONT - LHR
1 stop30h 26mBritish Airways
Deal found 30/5£538
週六 8/616:25LHR - ONT
1 stop15h 34mBritish Airways
週一 24/610:54ONT - LHR
1 stop13h 06mBritish Airways
Deal found 30/5£547
週四 6/616:25LHR - ONT
1 stop15h 34mAmerican Airlines
週六 8/622:45ONT - LHR
1 stop24h 55mAmerican Airlines
Deal found 30/5£550
週六 8/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
週六 15/614:44ONT - LHR
1 stop14h 01mAmerican Airlines
Deal found 30/5£551

One-way flights to Ontario from Heathrow

Search for one-way flight options from Heathrow to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 5月 2024.
Users travelling one-way from London to Ontario can select one of these great deals. Users can also find round-trip London to Ontario flights by using the search form above.
週一 23/907:40LHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 30/5£382
週六 31/807:40LHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 30/5£402
週六 31/807:40LHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 30/5£410
週三 17/707:55LHR - ONT
3 stops45h 46mMultiple Airlines
Deal found 30/5£436
週二 20/807:40LHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 30/5£465
週六 8/620:00LHR - ONT
3 stops43h 08mMultiple Airlines
Deal found 30/5£467
週一 10/610:30LHR - ONT
1 stop16h 27mIberia
Deal found 30/5£485
週一 14/1016:25LHR - ONT
1 stop15h 01mBritish Airways
Deal found 30/5£488
週六 8/619:50LHR - ONT
2 stops43h 18mMultiple Airlines
Deal found 30/5£495

Find flights from Heathrow to Ontario within your budget

Customise your flight search to find flights from Heathrow 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 908,271 searches. Data last updated 30 5月 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£400 - £576

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週二 10/9

1 stop14h 39m

Ontario

週二 24/9

1 stop13h 10m

£400

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週三 6/11

1 stop13h 57m

Ontario

週日 10/11

1 stop26h 04m

£428

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週三 18/9

1 stop15h 01m

Ontario

週一 23/9

1 stop13h 10m

£430

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週二 17/9

1 stop15h 47m

Ontario

週五 27/9

1 stop12h 18m

£466

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週五 20/9

2 stops18h 47m

Ontario

週五 27/9

1 stop29h 30m

£473

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週三 6/11

1 stop13h 33m

Ontario

週六 16/11

1 stop12h 18m

£479

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週三 12/6

2 stops18h 53m

Ontario

週五 5/7

1 stop19h 07m

£507

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週三 12/6

2 stops20h 27m

Ontario

週三 26/6

2 stops15h 15m

£529

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

週二 10/9

1 stop22h 56m

Ontario

週五 20/9

1 stop13h 09m

£576

Flights are sorted by cheapest first

Deals found on 30/5

How far ahead should I book a flight from London Heathrow Airport to Ontario?

Use this chart to determine the optimal time to book a return flight from Heathrow to Ontario. Price data was last updated on 24 May 2024.
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Ontario, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from London Heathrow Airport to Ontario?

Use this chart to determine the cheapest time to fly return from Heathrow to Ontario. Price data was last updated on 26 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to Ontario flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Heathrow to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Heathrow with our price prediction graph.
Estimated return 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.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

14 - 23 °C

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 30 5月 2024.
Read through reviews of airlines operating flights from London to Ontario, such as KLM, American Airlines and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Delta
8.0
Very Good
10,430 reviews
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

KLM
7.9
Good
1,520 reviews
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Finnair
7.8
Good
1,372 reviews
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

JetBlue
7.6
Good
4,356 reviews
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Virgin Atlantic
7.6
Good
720 reviews
Delta
8.0
Very Good
10,430 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 into for flights to Ontario from London Heathrow?

    If you book a flight to Ontario from London Heathrow, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from London Heathrow to Ontario per day from 6 different airlines.

  • Can I find flights from London Heathrow Airport to Ontario for under £400 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Ontario for under £400. The cheapest flight booked recently is on British Airways for just £400, but on average you can expect to pay £455.

  • Are there last-minute flights available from London Heathrow Airport to Ontario for under £600?

    There are currently 20+ open flights from London Heathrow Airport to Ontario within the next 7 days for less than £600.

  • What are the cheapest airlines flying from London Heathrow Airport to Ontario round-trip?

    Currently priced at £400, British Airways will fly you from London Heathrow Airport to Ontario and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Iberia - these airlines can fly you to your destination from £428 and £430, respectively. Users have found that British Airways is 31% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Ontario one-way?

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at £485. British Airways flights start at £488 while deals on Finnair start at £505 one-way.

  • What does LHR to ONT mean?

    LHR stands for London Heathrow Airport, while ONT stands for Ontario Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Heathrow to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Heathrow to Ontario that include hotel bookings?

    Yes. In addition to deals on Heathrow to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Ontario.

  • Can I find deals for business class flights from Heathrow to Ontario?

    Yes. Cheapflights offers flight deals from Heathrow 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.

  • Can I find deals for flights from Heathrow to Ontario that allow pets onboard?

    Many airlines flying from Heathrow to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Ontario?

    Yes, you can often find last-minute deals on Heathrow to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Ontario flight deals updated?

    The London Heathrow Airport to Ontario flight deals you see on this page were last updated on 30/5.

  • What are the most popular airlines that fly from London Heathrow Airport to Ontario?

    Consider Finnair, British Airways or Lufthansa when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Ontario.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Heathrow to Ontario

Discover the top 6 airlines that operate flights from Heathrow 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 908,271 searches. Data last updated 30 5月 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£375Average£456FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£386Average£527FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£421Average£503FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
FinnairCheapest£460Average£517FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£462Average£666FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£476Average£550FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
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Search flights from Heathrow to Ontario by cabin class

Find flights from Heathrow to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from Heathrow to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ontario?

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Can Cheapflights find flights from Heathrow to Ontario with no change fees?

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Can Cheapflights notify me if prices for flights from Heathrow to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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