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C$ 355+ Cheap flights to Heathrow
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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
3 Aug — 10 Aug1
Round-trip
1 adult
Economy
Flights to Heathrow in 2025
Find the latest flights to Heathrow in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 29 July 2025.
Find flight deals to Heathrow Airport
Cheapest flights to Heathrow AirportExplore the most affordable flight options available to Heathrow Airport. Find the lowest fares based on data from user searches, with prices last updated on 29 July 2025.
Explore the most affordable flight options available to Heathrow Airport. Find the lowest fares based on data from user searches, with prices last updated on 29 July 2025.
Tue 7/108:50 p.m.YYZ - LHR
1 stop18h 30mIcelandair
Mon 10/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Deal found 29/7C$ 737
Wed 10/94:10 p.m.YTZ - LHR
1 stop11h 25mAir Canada
Sat 13/92:05 p.m.LHR - YTZ
1 stop12h 29mAir Canada
Deal found 29/7C$ 738
Mon 8/92:00 p.m.YYZ - LHR
1 stop11h 30mAir Canada
Sun 14/98:30 a.m.LHR - YYZ
Nonstop7h 55mAir Canada
Deal found 29/7C$ 739
Thu 18/96:05 p.m.YYZ - LHR
Nonstop7h 10mBritish Airways
Sun 28/95:15 p.m.LHR - YYZ
Nonstop7h 55mBritish Airways
Deal found 27/7C$ 741
Tue 14/1010:30 p.m.YYZ - LHR
Nonstop7h 10mDelta
Tue 21/106:30 a.m.LHR - YYZ
1 stop11h 50mDelta
Deal found 27/7C$ 742
Wed 1/1011:15 p.m.YYZ - LHR
1 stop26h 15mLufthansa
Mon 13/105:40 p.m.LHR - YYZ
Nonstop7h 50mLufthansa
Deal found 28/7C$ 749
Wed 24/910:00 p.m.YYZ - LHR
Nonstop7h 15mAmerican Airlines
Sun 5/105:15 p.m.LHR - YYZ
Nonstop7h 55mAmerican Airlines
Deal found 29/7C$ 774
Mon 3/1111:10 p.m.YYZ - LHR
1 stop27h 00mMultiple Airlines
Wed 12/119:00 a.m.LHR - YYZ
1 stop11h 00mMultiple Airlines
Deal found 27/7C$ 776
Thu 4/95:20 p.m.YYZ - LHR
1 stop9h 40mAer Lingus
Sun 21/98:50 a.m.LHR - YYZ
1 stop12h 00mAer Lingus
Deal found 27/7C$ 785
Wed 24/94:10 p.m.YTZ - LHR
1 stop11h 25mMultiple Airlines
Wed 29/106:50 a.m.LHR - YTZ
2 stops17h 05mMultiple Airlines
Deal found 27/7C$ 842
Mon 22/95:40 a.m.YHM - LHR
1 stop19h 55mMultiple Airlines
Wed 8/102:10 p.m.LHR - YHM
1 stop15h 30mMultiple Airlines
Deal found 29/7C$ 1,122
Mon 27/106:10 p.m.YHM - LHR
1 stop14h 40mWestJet
Sun 9/119:00 a.m.LHR - YHM
2 stops37h 17mWestJet
Deal found 29/7C$ 1,200
Cheapflights Fare Finder
Locate flights to Heathrow that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 29 July 2025.
Use the filters below to find and compare flights to London Heathrow Airport that are best for you.
Fly from
Toronto
Route
Depart
Return
Price
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Tue 7/10
8:50 p.m.-8:20 p.m.
1 stop18h 30m
London Heathrow
Mon 10/11
12:15 p.m.-6:15 p.m.
1 stop11h 00m
C$ 737
TorontoLondon
YTZ - LHR
YTZLHR
Toronto Island
Wed 10/9
4:10 p.m.-8:35 a.m.
1 stop11h 25m
London Heathrow
Sat 13/9
2:05 p.m.-9:34 p.m.
1 stop12h 29m
C$ 738
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Mon 8/9
2:00 p.m.-6:30 a.m.
1 stop11h 30m
London Heathrow
Sun 14/9
8:30 a.m.-11:25 a.m.
Nonstop7h 55m
C$ 739
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Thu 18/9
10:30 p.m.-10:40 a.m.
Nonstop7h 10m
London Heathrow
Mon 20/10
11:45 a.m.-7:55 p.m.
1 stop13h 10m
C$ 741
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Tue 14/10
10:30 p.m.-10:40 a.m.
Nonstop7h 10m
London Heathrow
Tue 21/10
2:45 p.m.-7:55 p.m.
1 stop10h 10m
C$ 742
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Tue 4/11
10:05 p.m.-10:10 a.m.
Nonstop7h 05m
London Heathrow
Wed 19/11
11:40 a.m.-2:50 p.m.
Nonstop8h 10m
C$ 744
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Wed 1/10
2:00 p.m.-8:35 a.m.
1 stop13h 35m
London Heathrow
Wed 15/10
8:30 a.m.-11:25 a.m.
Nonstop7h 55m
C$ 749
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Wed 3/9
12:00 p.m.-8:35 a.m.
1 stop15h 35m
London Heathrow
Wed 10/9
7:30 a.m.-7:45 p.m.
1 stop17h 15m
C$ 759
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Wed 24/9
10:00 p.m.-10:15 a.m.
Nonstop7h 15m
London Heathrow
Sun 5/10
5:15 p.m.-8:10 p.m.
Nonstop7h 55m
C$ 774
TorontoLondon
YYZ - LHR
YYZLHR
Toronto Pearson Intl
Thu 4/9
5:20 p.m.-8:00 a.m.
1 stop9h 40m
London Heathrow
Sun 21/9
8:50 a.m.-3:50 p.m.
1 stop12h 00m
C$ 785
Showing 1-10 of 21 results
Best time to book a flight to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow with our price prediction graph.
Estimated round-trip 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.
Cheapflights Insights
Everything you need to know about your flight to London Heathrow Airport
When is the best time to book a flight to Heathrow?
Use this chart to determine the optimal time to book a round-trip flight from Toronto to Heathrow. Price data was last updated on 25 July 2025.
To ensure you get the cheapest price possible for a flight to Heathrow, you should look to book at least 81 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.
How long is the flight to Heathrow?
On average, a flight from Toronto to Heathrow takes 10 hours 21 minutes. Flights to Heathrow from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.
When is the cheapest time to fly to Heathrow?
Use this chart to determine the cheapest time to fly round-trip from Toronto to Heathrow. Price data was last updated on 16 December 2024.
Users looking for the lowest fares to Heathrow should consider flying on Tuesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday at noon, when prices are usually at their highest.
Weekly flight availability to Heathrow
The most flights from Toronto to Heathrow are scheduled on a Friday (46 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (39 on average).
What are the most popular airlines that fly to Heathrow?
The most popular airlines flying from Toronto to Heathrow are Air Canada, British Airways and Lufthansa.
What are the cheapest airlines that fly to Heathrow?
The cheapest airlines flying from Toronto to Heathrow are WestJet, PLAY and WestJet Encore.
Rainfall in Heathrow by month
Plan your trip to Heathrow by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Heathrow ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit Heathrow when rainfall is around 40.0 mm.
Temperature in Heathrow by month
Plan your trip to Heathrow by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Heathrow, 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
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 29 July 2025.
See what other customers who have flown with Delta,Virgin Atlantic, andAmerican Airlines to the United Kingdom have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.2
Overall
8.0
Entertainment
7.9
Food
7.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
FAQs about flying to Heathrow
London Heathrow Airport (LHR) is the busiest airport in the United Kingdom, and the fourth-busiest in the world, in terms of passenger traffic. However, Heathrow has the distinction of handling more international passengers than any other airport in the world – a testament to its importance as a transit-point for intercontinental travel.
Flights to Heathrow Airport are provided by an incredible 90 airlines, serving 180 destinations worldwide. Heathrow is home-base for British Airways, which operate direct and indirect flights to basically every major city you can think of, from Heathrow’s beautiful, new Terminal 5 building.
London – a compelling, cosmopolitan city – certainly has an appropriate gateway in Heathrow Airport: a highly modern, convenient hub that is truly geared toward providing the best possible experience to travellers. Located 15 miles (24km) from central London, there are plenty of easy, hassle-free transport options available to travellers looking to get downtown. The flocks of tourists, who are no doubt going to descend on London for the 2012 Olympic Games, can look forward to a warm welcome and efficient service.
Travelling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsBrentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bromley
Luton
Bedford
Southall
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Can Cheapflights find flights to Heathrow with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights to Heathrow flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights to Heathrow become cheaper?
Not ready to book yet? You can track prices for flights to Heathrow on Cheapflights with our Price Alerts feature and get notified when better prices are available.