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

To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £270. WestJet flights start at £321 while deals on Aer Lingus start at £354 one-way.

What are the most popular routes from London Heathrow Airport to Region of Ontario?

The most popular flight routes from London Heathrow Airport to Region of Ontario are London Heathrow - Toronto Pearson Intl, London Heathrow - Toronto Island and London Heathrow - Montreal Pierre Elliott Trudeau Intl.

What are the cheapest flights from London Heathrow Airport to Region of Ontario?

Looking for the cheapest flight from London Heathrow Airport to Region of Ontario? While on average our users pay £1,081, our data indicates the cheapest price to be £349. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £339.

What are the most reliable airlines from London Heathrow Airport to Region of Ontario?

The top 3 most reliable airlines when flying from London Heathrow Airport to Region of Ontario are Thai Airways (93%), Ethiopian Air (92%) and SriLankan Airlines (90%).

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

American Airlines, Air Canada and Air France are the most popular airlines when flying from London Heathrow Airport to Region of Ontario.

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

Travelers have found it’s best to book a flight 60 days in advance to save up to 15% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 60 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Region of Ontario 1-2 weeks in advance for as low as £463, or £543 for flights within the next 24 hours.

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

Flights from London Heathrow Airport to Region of Ontario lean towards being more expensive in August. Prices are generally better when you fly from London Heathrow Airport to Region of Ontario in February, with the cheapest ticket starting at £291.

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.

£227+ Flights from London Heathrow Airport to Ontario

Cheap flight deals from Heathrow to Ontario

Round-trip from	£328
One-way from	£227
Popular in	August
Cheapest in	February
Average price	£391
Good round-trip deal	£410 or less
Good one-way deal	£479 or less

Air Canada
7/3-22/3
2 total stops
30h 55m total
London to Ontario

Search Deals

6/3
1 total stop
25h 30m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£49 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to Ontario.

Search Deals

Price to beat on a one-way flight from London Heathrow to Ontario.

Search Deals

Find flight deals from Heathrow to Ontario

Cheapest flights from Heathrow to Ontario
Explore the most affordable flight options available from Heathrow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Fri 7/308:55LHR - YYZ

1 stop12h 25mAir Canada

Sat 22/322:05YYZ - LHR

1 stop18h 30mAir Canada

Deal found 20/2£328

Wed 7/513:30LHR - YYZ

1 stop11h 15mLufthansa

Sun 11/523:35YYZ - LHR

Nonstop7h 15mLufthansa

Deal found 20/2£330

Wed 12/313:30LHR - YYZ

1 stop11h 25mMultiple Airlines

Sat 22/321:10YYZ - LHR

Nonstop7h 20mMultiple Airlines

Deal found 20/2£339

Sun 23/306:00LHR - YTZ

2 stops15h 50mAir Canada

Tue 1/415:25YTZ - LHR

1 stop10h 05mAir Canada

Deal found 20/2£345

Sat 8/308:55LHR - YYZ

1 stop12h 25mSWISS

Sat 22/321:30YYZ - LHR

1 stop17h 45mSWISS

Deal found 20/2£349

Tue 29/410:25LHR - YYZ

1 stop32h 25mAustrian Airlines

Mon 5/517:45YYZ - LHR

1 stop33h 35mAustrian Airlines

Deal found 19/2£359

Tue 11/317:25LHR - YTZ

2 stops30h 25mSWISS

Tue 18/318:25YTZ - LHR

2 stops23h 00mSWISS

Deal found 20/2£368

Thu 24/409:30LHR - YTZ

1 stop10h 20mMultiple Airlines

Wed 30/412:25YTZ - LHR

1 stop13h 05mMultiple Airlines

Deal found 20/2£372

Fri 2/513:20LHR - YYZ

Nonstop7h 40mFinnair

Fri 9/518:05YYZ - LHR

Nonstop7h 10mFinnair

Deal found 20/2£372

Wed 5/314:45LHR - YYZ

1 stop11h 40mDelta

Fri 2/522:30YYZ - LHR

Nonstop7h 10mDelta

Deal found 20/2£376

Wed 23/421:25LHR - YYZ

1 stop29h 30mIcelandair

Mon 28/420:50YYZ - LHR

1 stop10h 05mIcelandair

Deal found 20/2£378

Wed 12/306:50LHR - YYZ

2 stops36h 45mBrussels Airlines

Wed 9/416:00YYZ - LHR

2 stops20h 05mBrussels Airlines

Deal found 20/2£386

Best flights from Heathrow to Ontario
Discover carefully curated flight deals from Heathrow to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 February 2025.

Fri 7/308:55LHR - YYZ

1 stop12h 25mAir Canada

Sat 22/322:05YYZ - LHR

1 stop18h 30mAir Canada

Deal found 20/2£328

Wed 7/513:30LHR - YYZ

1 stop11h 15mLufthansa

Sun 11/523:35YYZ - LHR

Nonstop7h 15mLufthansa

Deal found 20/2£330

Wed 12/313:30LHR - YYZ

1 stop11h 25mMultiple Airlines

Sat 22/322:05YYZ - LHR

1 stop18h 30mMultiple Airlines

Deal found 20/2£339

Sat 8/308:55LHR - YYZ

1 stop12h 25mSWISS

Sat 22/321:30YYZ - LHR

1 stop17h 45mSWISS

Deal found 20/2£349

Tue 29/410:25LHR - YYZ

1 stop32h 25mAustrian Airlines

Mon 5/517:45YYZ - LHR

1 stop33h 35mAustrian Airlines

Deal found 19/2£359

Fri 2/513:20LHR - YYZ

Nonstop7h 40mFinnair

Fri 9/518:05YYZ - LHR

Nonstop7h 10mFinnair

Deal found 20/2£372

Wed 5/314:45LHR - YYZ

1 stop11h 40mDelta

Sat 3/522:30YYZ - LHR

Nonstop7h 10mDelta

Deal found 20/2£376

Wed 23/421:25LHR - YYZ

1 stop29h 30mIcelandair

Mon 28/420:50YYZ - LHR

1 stop10h 05mIcelandair

Deal found 20/2£378

Wed 12/306:50LHR - YYZ

2 stops36h 45mBrussels Airlines

Wed 9/416:00YYZ - LHR

2 stops20h 05mBrussels Airlines

Deal found 20/2£386

Mon 10/307:30LHR - YYZ

2 stops16h 48mUnited Airlines

Mon 17/316:30YYZ - LHR

2 stops13h 45mUnited Airlines

Deal found 20/2£392

Fri 2/518:05LHR - YUL

Nonstop7h 10mBritish Airways

Wed 7/522:10YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 20/2£400

Fri 18/419:30LHR - YYZ

1 stop25h 10mScandinavian Airlines

Tue 22/417:10YYZ - LHR

2 stops18h 15mScandinavian Airlines

Deal found 20/2£402

Direct flights from Heathrow to Ontario
Explore direct flight options from Heathrow to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 February 2025.

Tue 11/314:30LHR - YYZ

Nonstop8h 15mAir Canada

Sun 23/319:10YYZ - LHR

Nonstop7h 20mAir Canada

Deal found 20/2£353

Thu 20/311:10LHR - YYZ

Nonstop8h 15mLufthansa

Wed 26/300:40YYZ - LHR

Nonstop7h 10mLufthansa

Deal found 20/2£361

Thu 24/417:50LHR - YYZ

Nonstop7h 50mAir France

Thu 15/522:30YYZ - LHR

Nonstop7h 10mAir France

Deal found 20/2£367

Fri 2/513:20LHR - YYZ

Nonstop7h 40mFinnair

Fri 9/518:05YYZ - LHR

Nonstop7h 10mFinnair

Deal found 20/2£372

Thu 8/513:20LHR - YYZ

Nonstop7h 40mBritish Airways

Wed 14/522:00YYZ - LHR

Nonstop7h 15mBritish Airways

Deal found 20/2£373

Thu 24/417:50LHR - YYZ

Nonstop7h 50mDelta

Fri 2/522:30YYZ - LHR

Nonstop7h 10mDelta

Deal found 20/2£386

Mon 3/314:30LHR - YYZ

Nonstop8h 15mMultiple Airlines

Tue 11/300:40YYZ - LHR

Nonstop7h 10mMultiple Airlines

Deal found 20/2£391

Thu 20/315:00LHR - YUL

Nonstop7h 40mAir Canada

Thu 27/320:15YUL - LHR

Nonstop6h 55mAir Canada

Deal found 19/2£395

Thu 20/316:30LHR - YUL

Nonstop7h 35mBritish Airways

Thu 10/422:05YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 20/2£396

Wed 23/409:30LHR - YUL

Nonstop7h 10mLufthansa

Wed 30/422:20YUL - LHR

Nonstop6h 40mLufthansa

Deal found 20/2£402

Sat 22/316:30LHR - YUL

Nonstop7h 35mAmerican Airlines

Mon 24/321:50YUL - LHR

Nonstop6h 50mAmerican Airlines

Deal found 20/2£431

Sat 22/316:30LHR - YUL

Nonstop7h 35mMultiple Airlines

Wed 9/422:10YUL - LHR

Nonstop6h 40mMultiple Airlines

Deal found 19/2£444

Last-minute flights from Heathrow to Ontario
Discover last-minute flight deals from Heathrow to Ontario. Data last updated 21 February 2025 and is based on user searches.

Tue 25/220:40LHR - YYZ

1 stop26h 35mIcelandair

Wed 12/320:45YYZ - LHR

1 stop18h 45mIcelandair

Deal found 20/2£422

Thu 27/215:00LHR - YUL

Nonstop7h 40mAir Canada

Wed 5/319:15YUL - LHR

Nonstop6h 55mAir Canada

Deal found 20/2£404

Fri 28/211:10LHR - YYZ

Nonstop8h 15mAir Canada

Sun 2/323:40YYZ - LHR

Nonstop7h 10mAir Canada

Deal found 20/2£355

Fri 28/210:10LHR - YYZ

1 stop17h 42mAir France

Mon 3/323:30YYZ - LHR

1 stop16h 55mAir France

Deal found 20/2£402

Fri 28/214:10LHR - YYZ

1 stop12h 49mMultiple Airlines

Sun 2/322:05YYZ - LHR

Nonstop7h 10mMultiple Airlines

Deal found 20/2£405

Sat 1/312:05LHR - YYZ

1 stop11h 52mLufthansa

Tue 18/321:10YYZ - LHR

Nonstop7h 20mLufthansa

Deal found 20/2£408

Sat 1/312:20LHR - YYZ

1 stop15h 29mDelta

Sun 30/322:30YYZ - LHR

Nonstop7h 10mDelta

Deal found 20/2£413

Sat 1/312:05LHR - YYZ

1 stop11h 52mUnited Airlines

Sun 9/315:00YYZ - LHR

1 stop10h 55mUnited Airlines

Deal found 20/2£416

Sat 1/306:00LHR - YYZ

1 stop13h 35mAustrian Airlines

Thu 13/319:05YYZ - LHR

1 stop22h 35mAustrian Airlines

Deal found 20/2£424

Sun 2/315:00LHR - YTZ

1 stop11h 50mAir Canada

Mon 10/317:25YTZ - LHR

1 stop9h 45mAir Canada

Deal found 20/2£349

Sun 2/317:35LHR - YYZ

1 stop32h 50mVirgin Atlantic

Sun 9/313:20YYZ - LHR

1 stop13h 30mVirgin Atlantic

Deal found 20/2£395

Sun 2/308:55LHR - YYZ

1 stop13h 19mKLM

Mon 10/318:05YYZ - LHR

1 stop10h 40mKLM

Deal found 19/2£410

One-way flights from Heathrow to Ontario
Search for one-way flight options from Heathrow to Ontario. Find affordable one-way fares based on user searches. Data last updated 21 February 2025.

Thu 6/320:40LHR - YHM

1 stop25h 30mMultiple Airlines

Deal found 20/2£227

Sun 20/422:00LHR - YYZ

1 stop21h 15mMultiple Airlines

Deal found 20/2£259

Tue 3/606:00LHR - YYZ

1 stop12h 55mTAP AIR PORTUGAL

Deal found 20/2£270

Thu 22/506:20LHR - YTZ

3 stops15h 08mMultiple Airlines

Deal found 19/2£272

Wed 21/506:15LHR - YOW

2 stops23h 07mMultiple Airlines

Deal found 19/2£283

Mon 26/506:20LHR - YUL

2 stops17h 16mMultiple Airlines

Deal found 19/2£311

Wed 19/314:50LHR - YHM

1 stop30h 23mWestJet

Deal found 20/2£321

Sat 21/619:50LHR - YUL

1 stop30h 20mTAP AIR PORTUGAL

Deal found 20/2£327

Wed 5/314:50LHR - YYZ

2 stops30h 00mWestJet

Deal found 20/2£330

Tue 25/308:50LHR - YYZ

1 stop12h 00mAer Lingus

Deal found 20/2£354

Wed 30/406:00LHR - YYZ

2 stops18h 30mAzores Airlines

Deal found 20/2£369

Sat 7/606:00LHR - YUL

2 stops19h 10mAzores Airlines

Deal found 20/2£387

Find flights from Heathrow to Ontario within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 7/3

08:55-16:20

1 stop12h 25m

Toronto Pearson Intl

Sat 22/3

21:10-08:30

Nonstop7h 20m

£328

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 7/5

13:30-19:45

1 stop11h 15m

Toronto Pearson Intl

Sun 11/5

23:35-11:50

Nonstop7h 15m

£330

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 12/3

13:30-20:55

1 stop11h 25m

Toronto Pearson Intl

Sat 22/3

21:10-08:30

Nonstop7h 20m

£339

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Sun 23/3

06:00-17:50

2 stops15h 50m

Toronto Island

Tue 1/4

15:25-06:30

1 stop10h 05m

£345

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 8/3

08:55-16:20

1 stop12h 25m

Toronto Pearson Intl

Sat 22/3

21:30-19:15

1 stop17h 45m

£349

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 29/4

10:25-13:50

1 stop32h 25m

Toronto Pearson Intl

Mon 5/5

17:45-08:20

1 stop33h 35m

£359

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Tue 11/3

17:25-19:50

2 stops30h 25m

Toronto Island

Tue 18/3

18:25-21:25

2 stops23h 00m

£368

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Thu 24/4

09:30-14:50

1 stop10h 20m

Toronto Island

Wed 30/4

12:25-06:30

1 stop13h 05m

£372

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 2/5

13:20-16:00

Nonstop7h 40m

Toronto Pearson Intl

Fri 9/5

18:05-06:15

Nonstop7h 10m

£372

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 5/3

14:45-21:25

1 stop11h 40m

Toronto Pearson Intl

Fri 2/5

22:30-10:40

Nonstop7h 10m

£376

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 60 results

...

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.

Travel insights for flights from Heathrow to Ontario

Get recent, data-driven insights about flights from Heathrow to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London Heathrow Airport to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of £490). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of £708). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

When flying from London Heathrow Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Region of Ontario

The most flights from LHR to CAON are scheduled on a Wednesday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in Ontario by month

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 inches per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Delta, KLM and Finnair from London to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Delta

8.0

Very Good

8,213 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

KLM

7.8

Good

1,331 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Azores Airlines

7.6

Good

62 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Austrian Airlines

7.6

Good

773 reviews

Delta

8.0

Very Good

8,213 reviews

Check prices

Reviews

1 / 20

6.0

Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Related info for your journey

What are the cheapest airlines to fly from London Heathrow Airport to Region of Ontario one-way?
To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £270. WestJet flights start at £321 while deals on Aer Lingus start at £354 one-way.
What are the most popular routes from London Heathrow Airport to Region of Ontario?
The most popular flight routes from London Heathrow Airport to Region of Ontario are London Heathrow - Toronto Pearson Intl, London Heathrow - Toronto Island and London Heathrow - Montreal Pierre Elliott Trudeau Intl.
What are the most reliable airlines from London Heathrow Airport to Region of Ontario?
The top 3 most reliable airlines when flying from London Heathrow Airport to Region of Ontario are Thai Airways (93%), Ethiopian Air (92%) and SriLankan Airlines (90%).
What are the cheapest flights from London Heathrow Airport to Region of Ontario?
Looking for the cheapest flight from London Heathrow Airport to Region of Ontario? While on average our users pay £1,081, our data indicates the cheapest price to be £349. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £339.
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.
What is the cheapest month to book a flight from London Heathrow Airport to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Region of Ontario (average of £490). Flying from London Heathrow Airport to Region of Ontario in July is currently the most expensive (average of £708). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Ontario

Heathrow to Vancouver Intl flights

Heathrow to Pearson Intl flights

Gatwick to Pearson Intl flights

Gatwick to Vancouver Intl flights

Heathrow to Toronto Island flights

London City to Pearson Intl flights

Heathrow to Calgary flights

Heathrow to Pierre Elliott Trudeau Intl flights

London City to Vancouver Intl flights

Gatwick to Toronto Island flights

Heathrow to Abbotsford flights

Gatwick to Pierre Elliott Trudeau Intl flights

Stansted to Pearson Intl flights

Luton to Pearson Intl flights

Gatwick to Calgary flights

London City to Pierre Elliott Trudeau Intl flights

London City to Calgary flights

Heathrow to Halifax flights

Luton to Pierre Elliott Trudeau Intl flights

Gatwick to Abbotsford flights

Heathrow to Ottawa flights

Luton to Calgary flights

Heathrow to Winnipeg flights

Stansted to Pierre Elliott Trudeau Intl flights

Heathrow to Victoria flights

Heathrow to Edmonton flights

Heathrow to London flights

Gatwick to Ottawa flights

Gatwick to Halifax flights

Gatwick to Winnipeg flights

London City to Ottawa flights

London City to Halifax flights

Heathrow to Kelowna flights

Gatwick to Edmonton flights

London City to Winnipeg flights

Heathrow to St. John's flights

Luton to Halifax flights

Heathrow to Saskatoon flights

Stansted to Calgary flights

Gatwick to London flights

Gatwick to St. John's flights

Luton to Vancouver Intl flights

London City to Saskatoon flights

Gatwick to Saskatoon flights

London City to St. John's flights

Stansted to Vancouver Intl flights

Gatwick to Victoria flights

Complete your trip

Region of Ontario car hire

Toronto Pearson Intl Airport car hire

Ottawa Airport car hire

Toronto Island Airport car hire

Hamilton Airport car hire

London Airport car hire

Toronto Region of Waterloo Intl Airport car hire

Thunder Bay Airport car hire

Sault Ste Marie Airport car hire

Timmins Airport car hire

Kingston Airport car hire

North Bay Airport car hire

Top 10 airlines flying from Heathrow to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£268	Average£580	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
PLAY	Cheapest£288	Average£386	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Iberia	Cheapest£319	Average£754	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Icelandair	Cheapest£345	Average£506	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
TAP AIR PORTUGAL	Cheapest£350	Average£586	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£351	Average£460	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Scandinavian Airlines	Cheapest£370	Average£539	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
British Airways	Cheapest£378	Average£576	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£379	Average£492	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air Canada	Cheapest£387	Average£558	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Heathrow today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Ontario from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Heathrow to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to Ontario from £227

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Ontario

Keep the following information in mind while searching for Heathrow to Ontario flight deals. Data was last updated 21 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Heathrow to Ontario

Cheapest flights from Heathrow to OntarioExplore the most affordable flight options available from Heathrow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Explore the most affordable flight options available from Heathrow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Find flights from Heathrow to Ontario within your budget

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.

Travel insights for flights from Heathrow to Ontario

Get recent, data-driven insights about flights from Heathrow to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London Heathrow Airport to Region of Ontario?

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

Find hourly flight availability from Heathrow to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Weekly flight availability from London Heathrow Airport to Region of Ontario

Explore weekly flight availability from Heathrow to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Delta, KLM and Finnair from London to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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 are the cheapest airlines to fly from London Heathrow Airport to Region of Ontario one-way?

What are the most popular routes from London Heathrow Airport to Region of Ontario?

What are the most reliable airlines from London Heathrow Airport to Region of Ontario?

What are the cheapest flights from London Heathrow Airport to Region of Ontario?

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

How can I find direct flights from Heathrow to Ontario?

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

What is the cheapest month to book a flight from London Heathrow Airport to Region of Ontario?

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.

Top 10 airlines flying from Heathrow to Ontario

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Ontario?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Ontario
Explore the most affordable flight options available from Heathrow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.