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Cheap flights from London, ON to London Heathrow Airport from C$ 514

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
17 Jun — 24 Jun1
1 adult

Cheap flight deals from London to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Heathrow (LHR). 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 12 June 2025.

Round-trip from

C$ 935

One-way from

C$ 514

Popular in

December

Cheapest in

October

Average price

C$ 1,683
United Airlines
  • United Airlines
  • 5/10-21/10
  • 4 total stops
  • 33h 17m total
  • London to London
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WestJet
  • WestJet
  • 16/10
  • 1 total stop
  • 25h 05m total
  • London to London
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Highest demand for flights based on searches. 16% potential increase in price (C$ 331 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 80 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from London to Heathrow

Cheapest flights from London to Heathrow
Explore the most affordable flight options available from London to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Sun 5/106:15 a.m.YXU - LHR
2 stops19h 05mUnited Airlines
Wed 22/1012:15 p.m.LHR - YXU
2 stops14h 12mUnited Airlines
Deal found 10/6C$ 935
Sat 4/103:35 p.m.YXU - LHR
1 stop15h 15mAir Canada
Thu 23/106:50 a.m.LHR - YXU
2 stops19h 37mAir Canada
Deal found 10/6C$ 1,068
Sat 4/103:35 p.m.YXU - LHR
1 stop10h 00mLufthansa
Sun 19/103:50 p.m.LHR - YXU
1 stop10h 37mLufthansa
Deal found 10/6C$ 1,084
Tue 7/106:15 a.m.YXU - LHR
1 stop19h 20mMultiple Airlines
Tue 21/108:05 p.m.LHR - YXU
2 stops30h 22mMultiple Airlines
Deal found 10/6C$ 1,087
Fri 5/128:00 p.m.YXU - LHR
1 stop35h 50mWestJet
Mon 8/122:50 p.m.LHR - YXU
1 stop33h 22mWestJet
Deal found 12/6C$ 1,240
Fri 27/63:35 p.m.YXU - LHR
3 stops20h 00mSWISS
Sat 12/78:05 p.m.LHR - YXU
2 stops26h 02mSWISS
Deal found 9/6C$ 2,874

Cheapflights Fare Finder

Customize your flight search to find flights from London to Heathrow 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 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from London to London Heathrow Airport that are best for you.

Fly from

London

Fly to

Heathrow

Route

Depart

Return

Price

LondonLondon

YXU - LHR

YXULHR

London

Sun 5/10

6:15 a.m.-6:55 a.m.

2 stops19h 40m

London Heathrow

Mon 20/10

12:15 p.m.-9:27 p.m.

2 stops14h 12m

C$ 935

LondonLondon

YXU - LHR

YXULHR

London

Sat 4/10

3:35 p.m.-11:50 a.m.

1 stop15h 15m

London Heathrow

Thu 23/10

6:50 a.m.-9:27 p.m.

2 stops19h 37m

C$ 1,068

LondonLondon

YXU - LHR

YXULHR

London

Sat 4/10

3:35 p.m.-6:35 a.m.

1 stop10h 00m

London Heathrow

Sat 18/10

3:50 p.m.-9:27 p.m.

1 stop10h 37m

C$ 1,084

LondonLondon

YXU - LHR

YXULHR

London

Tue 7/10

6:15 a.m.-6:35 a.m.

1 stop19h 20m

London Heathrow

Tue 21/10

8:05 p.m.-9:27 p.m.

2 stops30h 22m

C$ 1,087

LondonLondon

YXU - LHR

YXULHR

London

Fri 5/12

8:00 p.m.-12:50 p.m.

1 stop35h 50m

London Heathrow

Mon 8/12

2:50 p.m.-7:12 p.m.

1 stop33h 22m

C$ 1,240

LondonLondon

YXU - LHR

YXULHR

London

Fri 27/6

3:35 p.m.-4:35 p.m.

3 stops20h 00m

London Heathrow

Sat 12/7

8:05 p.m.-5:07 p.m.

2 stops26h 02m

C$ 2,874

LondonLondon

YXU - LHR

YXULHR

London

Thu 16/10

6:00 a.m.-12:05 p.m.

1 stop25h 05m

C$ 514

LondonLondon

YXU - LHR

YXULHR

London

Sat 26/7

5:45 p.m.-10:20 a.m.

3 stops35h 35m

C$ 580

LondonLondon

YXU - LHR

YXULHR

London

Sat 26/7

6:15 a.m.-6:35 a.m.

1 stop19h 20m

C$ 619

LondonLondon

YXU - LHR

YXULHR

London

Fri 25/7

6:15 a.m.-6:55 a.m.

2 stops19h 40m

C$ 660

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 11 results
1
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Best time to book a flight from London to Heathrow

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

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

Currently, January is the cheapest month in which you can book a flight from London, Ontario to London Heathrow Airport (average of C$ 560). Flying from London, Ontario to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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 YXU to LHR?

Find hourly flight availability from London 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 12 June 2025.

A simple way to save on the total cost of your ticket is to fly from London, Ontario to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight at noon.

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 London Heathrow Airport 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 London Heathrow Airport 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 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

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 12 June 2025.
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
SWISS
7.5
Good
1,623 reviews
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
United Airlines
7.4
Good
8,790 reviews
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
WestJet
7.2
Good
2,868 reviews
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Air Canada
7.1
Good
9,531 reviews
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Lufthansa
6.8
Okay
7,136 reviews
SWISS
7.5
Good
1,623 reviews
Check prices

Food

7.0

Overall

7.5

Comfort

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Related info for your journey

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

    For a flight from London to London Heathrow, you will be flying from London. London (YXU) is just 8.6 km from the centre of the city. London is the only London airport and it handles 0 outbound flights to London Heathrow per day. 1 airline has flights to London Heathrow from London on a regular basis.

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

    United Airlines, at C$ 935, was found to be the cheapest airline from London, Ontario to London Heathrow Airport.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. These flights start at 22% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from London, Ontario to London Heathrow Airport are WestJet (C$ 514), Air Canada (C$ 619), and United Airlines (C$ 660).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 London, Ontario to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from London, Ontario to London Heathrow Airport (average of C$ 560). Flying from London, Ontario to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Brentford
Sutton
Hounslow
Slough
Leamington Spa
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

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Alternative routes for London to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Heathrow

Discover the top airline that operate flights from London to Heathrow. 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 629,999 searches. Data last updated 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 780AverageC$ 1,195FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Heathrow. 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 London to Heathrow?

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

Yes! Cheapflights helps users easily find flights from London to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from London 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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