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

£182 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Azores Airlines and TAP AIR PORTUGAL, with prices starting from £251 and £252, respectively.

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

When deciding which route to take from Region of Ontario to London Heathrow Airport consider Toronto Pearson Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Heathrow or Toronto Island - London Heathrow as they are the most popular.

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

Looking for the cheapest flight from Region of Ontario to London Heathrow Airport? While on average our users pay £618, our data indicates the cheapest price to be £305. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £365.

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

No one likes to see their flight delayed. When booking a flight from Region of Ontario to London Heathrow Airport consider choosing Ethiopian Air (86%), Singapore Airlines (85%) or United Airlines (80%) as they are the most reliable in getting you off to your destination on time.

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

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

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

To save up to 25% on this flight, we recommend booking at least 55 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Region of Ontario to London Heathrow Airport from £525 1-2 weeks out and tickets from £628 for flights departing within the next 72 hours.

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

February can be a great time to fly to London Heathrow Airport from Region of Ontario with a flight ticket averaging about £498. Cheapflights users have found deals in the month of February for as cheap as £298. The most expensive prices can be found in the month of December.

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

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

How can I find direct flights from Ontario to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Ontario to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£172+ Flights from Ontario to London Heathrow Airport

Cheap flight deals from Ontario to Heathrow

Round-trip from	£402
One-way from	£172

TAP AIR PORTUGAL
19/1-27/1
2 total stops
39h 00m total
Ontario to London

Search Deals

31/1
1 total stop
15h 45m total
Ontario to London

Search Deals

Find flight deals from Ontario to Heathrow

Cheapest flights from Ontario to Heathrow
Explore the most affordable flight options available from Ontario to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 December 2024.

Tue 31/1218:35YYZ - LHR

1 stop11h 40mMultiple Airlines

Mon 13/107:40LHR - YYZ

1 stop12h 15mMultiple Airlines

Deal found 20/12£522

Mon 30/1221:35YYZ - LHR

1 stop18h 00mAir Canada

Fri 10/109:00LHR - YYZ

1 stop14h 01mAir Canada

Deal found 20/12£551

Tue 31/1218:35YYZ - LHR

1 stop11h 40mUnited Airlines

Thu 9/110:00LHR - YYZ

1 stop12h 46mUnited Airlines

Deal found 19/12£555

Sun 29/1219:45YYZ - LHR

1 stop18h 45mIcelandair

Fri 24/112:15LHR - YYZ

1 stop11h 00mIcelandair

Deal found 18/12£556

Fri 27/1219:05YUL - LHR

1 stop10h 20mVirgin Atlantic

Fri 31/106:30LHR - YUL

1 stop15h 40mVirgin Atlantic

Deal found 20/12£586

Tue 31/1218:05YYZ - LHR

Nonstop7h 25mLufthansa

Tue 14/111:10LHR - YYZ

Nonstop8h 15mLufthansa

Deal found 19/12£600

Mon 30/1220:55YUL - LHR

1 stop18h 40mAir Canada

Mon 13/115:00LHR - YUL

Nonstop7h 40mAir Canada

Deal found 20/12£614

Mon 30/1221:25YUL - LHR

2 stops19h 10mMultiple Airlines

Mon 13/114:50LHR - YUL

1 stop29h 46mMultiple Airlines

Deal found 20/12£623

Fri 27/1219:05YUL - LHR

1 stop13h 40mAir France

Sun 29/1206:20LHR - YUL

1 stop14h 05mAir France

Deal found 19/12£627

Mon 30/1217:35YOW - LHR

1 stop22h 00mAir Canada

Tue 14/109:00LHR - YOW

1 stop12h 56mAir Canada

Deal found 18/12£632

Sun 29/1220:45YYZ - LHR

2 stops54h 35mAustrian Airlines

Fri 24/114:50LHR - YYZ

2 stops34h 00mAustrian Airlines

Deal found 18/12£634

Sat 28/1216:00YUL - LHR

1 stop9h 35mAmerican Airlines

Wed 8/118:00LHR - YUL

1 stop21h 10mAmerican Airlines

Deal found 20/12£669

Best flights from Ontario to Heathrow
Discover carefully curated flight deals from Ontario to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 December 2024.

Sun 19/122:45YYZ - LHR

1 stop13h 45mTAP AIR PORTUGAL

Mon 27/118:30LHR - YYZ

1 stop25h 15mTAP AIR PORTUGAL

Deal found 20/12£402

Tue 18/210:20YTZ - LHR

2 stops15h 50mAir Canada

Thu 27/208:55LHR - YTZ

2 stops28h 15mAir Canada

Deal found 18/12£405

Fri 4/420:50YYZ - LHR

1 stop18h 30mIcelandair

Mon 7/421:25LHR - YYZ

1 stop26h 45mIcelandair

Deal found 20/12£408

Mon 13/116:00YYZ - LHR

1 stop10h 10mMultiple Airlines

Thu 27/208:30LHR - YYZ

1 stop12h 45mMultiple Airlines

Deal found 18/12£409

Wed 12/222:05YYZ - LHR

Nonstop7h 10mBritish Airways

Thu 20/217:05LHR - YYZ

Nonstop8h 10mBritish Airways

Deal found 19/12£435

Thu 9/118:10YYZ - LHR

Nonstop7h 20mLufthansa

Mon 20/107:40LHR - YYZ

1 stop12h 15mLufthansa

Deal found 19/12£436

Mon 7/422:20YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Mon 21/409:00LHR - YYZ

1 stop16h 45mVirgin Atlantic

Deal found 19/12£444

Sat 12/422:20YYZ - LHR

Nonstop7h 10mDelta

Mon 21/417:10LHR - YYZ

Nonstop8h 20mDelta

Deal found 19/12£452

Sun 16/218:35YYZ - LHR

1 stop14h 10mAir France

Mon 14/415:20LHR - YYZ

1 stop10h 35mAir France

Deal found 19/12£460

Sun 12/116:00YYZ - LHR

1 stop15h 50mWestJet

Sun 19/114:50LHR - YYZ

2 stops30h 04mWestJet

Deal found 20/12£470

Thu 27/312:20YYZ - LHR

2 stops13h 35mUnited Airlines

Tue 1/410:50LHR - YYZ

2 stops16h 33mUnited Airlines

Deal found 20/12£480

Tue 28/118:00YYZ - LHR

2 stops36h 15mSWISS

Sat 1/217:10LHR - YYZ

1 stop28h 10mSWISS

Deal found 20/12£486

Direct flights from Ontario to Heathrow
Explore direct flight options from Ontario to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 December 2024.

Tue 21/120:10YYZ - LHR

Nonstop7h 20mAir Canada

Tue 28/118:00LHR - YYZ

Nonstop8h 40mAir Canada

Deal found 19/12£415

Fri 7/218:00YYZ - LHR

Nonstop7h 15mBritish Airways

Sun 16/211:45LHR - YYZ

Nonstop8h 10mBritish Airways

Deal found 20/12£432

Mon 7/422:20YYZ - LHR

Nonstop7h 10mVirgin Atlantic

Mon 21/417:10LHR - YYZ

Nonstop8h 20mVirgin Atlantic

Deal found 20/12£434

Mon 13/120:10YYZ - LHR

Nonstop7h 20mLufthansa

Sun 19/118:00LHR - YYZ

Nonstop8h 40mLufthansa

Deal found 20/12£447

Thu 9/118:10YYZ - LHR

Nonstop7h 20mMultiple Airlines

Wed 15/118:00LHR - YYZ

Nonstop8h 40mMultiple Airlines

Deal found 19/12£456

Mon 24/320:15YUL - LHR

Nonstop6h 55mLufthansa

Mon 31/309:30LHR - YUL

Nonstop7h 10mLufthansa

Deal found 20/12£514

Wed 26/320:15YUL - LHR

Nonstop6h 55mAir Canada

Mon 31/309:30LHR - YUL

Nonstop7h 10mAir Canada

Deal found 19/12£516

Mon 10/320:15YUL - LHR

Nonstop6h 55mMultiple Airlines

Sun 23/315:00LHR - YUL

Nonstop7h 40mMultiple Airlines

Deal found 20/12£519

Wed 2/421:10YOW - LHR

Nonstop6h 25mAir Canada

Wed 23/412:40LHR - YOW

Nonstop7h 20mAir Canada

Deal found 20/12£519

Wed 2/421:10YOW - LHR

Nonstop6h 25mLufthansa

Wed 23/412:40LHR - YOW

Nonstop7h 20mLufthansa

Deal found 19/12£524

Thu 23/120:50YUL - LHR

Nonstop6h 50mFinnair

Fri 31/116:30LHR - YUL

Nonstop7h 35mFinnair

Deal found 20/12£548

Fri 11/422:00YUL - LHR

Nonstop6h 40mBritish Airways

Sat 19/418:05LHR - YUL

Nonstop7h 10mBritish Airways

Deal found 20/12£549

Last-minute flights from Ontario to Heathrow
Discover last-minute flight deals from Ontario to Heathrow. Data last updated 21 December 2024 and is based on user searches.

Fri 27/1219:05YUL - LHR

1 stop10h 20mVirgin Atlantic

Fri 31/106:30LHR - YUL

1 stop15h 40mVirgin Atlantic

Deal found 20/12£586

Fri 27/1219:05YUL - LHR

1 stop13h 40mAir France

Sun 29/1206:20LHR - YUL

1 stop14h 05mAir France

Deal found 19/12£627

Sat 28/1223:40YYZ - LHR

Nonstop7h 10mLufthansa

Mon 13/113:30LHR - YYZ

1 stop11h 25mLufthansa

Deal found 19/12£626

Sat 28/1216:00YUL - LHR

1 stop9h 35mAmerican Airlines

Wed 8/118:00LHR - YUL

1 stop21h 10mAmerican Airlines

Deal found 20/12£669

Sun 29/1219:45YYZ - LHR

1 stop18h 45mIcelandair

Fri 24/112:15LHR - YYZ

1 stop11h 00mIcelandair

Deal found 18/12£556

Sun 29/1220:45YYZ - LHR

2 stops54h 35mAustrian Airlines

Fri 24/114:50LHR - YYZ

2 stops34h 00mAustrian Airlines

Deal found 18/12£634

Mon 30/1218:20YYZ - LHR

1 stop21h 15mMultiple Airlines

Tue 14/106:30LHR - YYZ

1 stop11h 50mMultiple Airlines

Deal found 19/12£546

Mon 30/1221:35YYZ - LHR

1 stop18h 00mAir Canada

Fri 10/109:00LHR - YYZ

1 stop14h 01mAir Canada

Deal found 20/12£551

Mon 30/1221:00YYZ - LHR

1 stop33h 15mUnited Airlines

Sun 12/116:20LHR - YYZ

1 stop28h 46mUnited Airlines

Deal found 19/12£555

Mon 30/1220:55YUL - LHR

1 stop18h 40mAir Canada

Mon 13/115:00LHR - YUL

Nonstop7h 40mAir Canada

Deal found 20/12£614

Mon 30/1221:25YUL - LHR

2 stops19h 10mMultiple Airlines

Mon 13/114:50LHR - YUL

1 stop29h 46mMultiple Airlines

Deal found 20/12£623

Mon 30/1217:35YOW - LHR

1 stop22h 00mAir Canada

Tue 14/109:00LHR - YOW

1 stop12h 56mAir Canada

Deal found 18/12£632

One-way flights from Ontario to Heathrow
Search for one-way flight options from Ontario to Heathrow. Find affordable one-way fares based on user searches. Data last updated 21 December 2024.

Fri 31/118:20YHM - LHR

1 stop15h 45mMultiple Airlines

Deal found 20/12£172

Wed 22/106:15YOW - LHR

1 stop25h 35mWestJet

Deal found 19/12£182

Wed 22/108:00YOW - LHR

2 stops23h 50mMultiple Airlines

Deal found 20/12£188

Wed 22/118:05YHM - LHR

1 stop37h 45mWestJet

Deal found 20/12£203

Thu 23/120:00YXU - LHR

1 stop35h 50mWestJet

Deal found 20/12£203

Tue 14/122:40YYZ - LHR

3 stops33h 10mWestJet

Deal found 20/12£244

Mon 24/321:50YYZ - LHR

3 stops35h 00mMultiple Airlines

Deal found 20/12£245

Sun 19/121:05YYZ - LHR

2 stops34h 35mAzores Airlines

Deal found 19/12£251

Sun 23/217:35YYZ - LHR

1 stop14h 05mTAP AIR PORTUGAL

Deal found 20/12£252

Thu 20/206:45YUL - LHR

2 stops25h 05mWestJet

Deal found 19/12£252

Wed 15/118:20YTZ - LHR

2 stops15h 05mMultiple Airlines

Deal found 19/12£253

Mon 13/121:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Deal found 20/12£255

Find flights from Ontario to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 19/1

22:45-17:30

1 stop13h 45m

London Heathrow

Mon 27/1

18:30-14:45

1 stop25h 15m

£402

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Tue 18/2

10:20-07:10

2 stops15h 50m

London Heathrow

Thu 27/2

08:55-08:10

2 stops28h 15m

£405

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 10/1

21:35-20:35

1 stop18h 00m

London Heathrow

Fri 24/1

08:55-16:20

1 stop12h 25m

£406

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 4/4

20:50-20:20

1 stop18h 30m

London Heathrow

Mon 7/4

21:25-19:10

1 stop26h 45m

£408

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 13/1

16:00-07:10

1 stop10h 10m

London Heathrow

Thu 27/2

08:30-16:15

1 stop12h 45m

£409

HamiltonLondon

YHM - LHR

YHMLHR

Hamilton

Fri 31/1

18:20-21:05

2 stops21h 45m

London Heathrow

Sun 9/2

07:50-17:10

2 stops14h 20m

£410

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Thu 9/1

15:25-07:10

1 stop10h 45m

London Heathrow

Thu 16/1

06:50-16:50

2 stops15h 00m

£413

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 7/2

18:00-06:15

Nonstop7h 15m

London Heathrow

Sun 16/2

11:45-14:55

Nonstop8h 10m

£432

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 9/1

18:10-06:30

Nonstop7h 20m

London Heathrow

Mon 20/1

07:40-14:55

1 stop12h 15m

£436

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 7/4

22:20-10:30

Nonstop7h 10m

London Heathrow

Mon 21/4

09:00-20:45

1 stop16h 45m

£444

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 60 results

...

Best time to book a flight from Ontario to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Ontario 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 Ontario to Heathrow

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

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £112). Flying from Region of Ontario to London Heathrow Airport in July is currently the most expensive (average of £160). 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 ON to LHR?

When flying from Region of Ontario to London Heathrow Airport, 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 Region of Ontario to London Heathrow Airport

The most flights from CAON to LHR are scheduled on a Friday (36 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Ontario to London, such as Icelandair, Lufthansa and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,601 reviews

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,344 reviews

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.7

Good

1,282 reviews

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.6

Good

785 reviews

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.6

Good

1,604 reviews

Delta

8.0

Very Good

8,601 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Region of Ontario to London Heathrow Airport one-way?
£182 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Azores Airlines and TAP AIR PORTUGAL, with prices starting from £251 and £252, respectively.
What are the most popular routes from Region of Ontario to London Heathrow Airport?
When deciding which route to take from Region of Ontario to London Heathrow Airport consider Toronto Pearson Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Heathrow or Toronto Island - London Heathrow as they are the most popular.
What are the most reliable airlines from Region of Ontario to London Heathrow Airport?
No one likes to see their flight delayed. When booking a flight from Region of Ontario to London Heathrow Airport consider choosing Ethiopian Air (86%), Singapore Airlines (85%) or United Airlines (80%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Region of Ontario to London Heathrow Airport?
Looking for the cheapest flight from Region of Ontario to London Heathrow Airport? While on average our users pay £618, our data indicates the cheapest price to be £305. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £365.
Can I find deals for flights from Ontario to Heathrow that include hotel bookings?
Yes. In addition to deals on Ontario to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ontario to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Heathrow.
Can I find deals for business class flights from Ontario to Heathrow?
Yes. Cheapflights offers flight deals from Ontario to Heathrow 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 Region of Ontario to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Region of Ontario to London Heathrow Airport (average of £112). Flying from Region of Ontario to London Heathrow Airport in July is currently the most expensive (average of £160). 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

Top 10 airlines flying from Ontario to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£263	Average£382	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest£356	Average£451	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Icelandair	Cheapest£358	Average£516	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air Transat	Cheapest£400	Average£527	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Virgin Atlantic	Cheapest£400	Average£485	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Canada	Cheapest£413	Average£610	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£448	Average£619	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£454	Average£564	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£467	Average£559	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£549	Average£552	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Ontario to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Heathrow for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Heathrow flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Ontario to London Heathrow Airport from £172

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Heathrow

Round-trip from

One-way from

Find flight deals from Ontario to Heathrow

Cheapest flights from Ontario to HeathrowExplore the most affordable flight options available from Ontario to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 December 2024.

Explore the most affordable flight options available from Ontario to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 December 2024.

Find flights from Ontario to Heathrow within your budget

Best time to book a flight from Ontario to Heathrow

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

Travel insights for flights from Ontario to Heathrow

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

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

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

Find hourly flight availability from Ontario to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 December 2024.

Weekly flight availability from Region of Ontario to London Heathrow Airport

Explore weekly flight availability from Ontario to Heathrow. 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 December 2024.

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Ontario to London, such as Icelandair, Lufthansa and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Heathrow. 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 Region of Ontario to London Heathrow Airport one-way?

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

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

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

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

How can I find direct flights from Ontario to Heathrow?

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

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

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 Ontario to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Ontario to Heathrow

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Cheapest flights from Ontario to Heathrow
Explore the most affordable flight options available from Ontario to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 December 2024.