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Cheap flights from London, ON to London Heathrow Airport from C$ 558

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
26 Mar — 2 Apr1
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 21 March 2025.

Round-trip from

C$ 839

One-way from

C$ 558

Popular in

December

Cheapest in

October

Average price

C$ 1,077
Air Canada
  • Air Canada
  • 4/5-11/5
  • 4 total stops
  • 33h 18m total
  • London to London
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Lufthansa
  • Lufthansa
  • 21/4
  • 2 total stops
  • 15h 35m total
  • London to London
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Highest demand for flights based on searches. 13% potential increase in price (C$ 272 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 88 potential savings vs. average RT price).
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Average for round-trip flights in March 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 21 March 2025.

Sun 4/59:55 a.m.YXU - LHR
2 stops15h 35mAir Canada
Sun 11/58:45 a.m.LHR - YXU
2 stops17h 43mAir Canada
Deal found 21/3C$ 839
Sun 4/59:55 a.m.YXU - LHR
1 stop15h 40mLufthansa
Sun 11/512:05 p.m.LHR - YXU
1 stop14h 23mLufthansa
Deal found 21/3C$ 866
Sat 12/43:25 p.m.YXU - LHR
2 stops12h 10mMultiple Airlines
Sat 10/58:30 a.m.LHR - YXU
1 stop11h 28mMultiple Airlines
Deal found 20/3C$ 868
Mon 5/53:35 p.m.YXU - LHR
2 stops13h 35mUnited Airlines
Mon 12/52:10 p.m.LHR - YXU
2 stops24h 08mUnited Airlines
Deal found 21/3C$ 939
Mon 5/58:00 p.m.YXU - LHR
1 stop35h 05mWestJet
Mon 12/56:15 a.m.LHR - YXU
2 stops41h 54mWestJet
Deal found 21/3C$ 1,573

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 21 March 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 4/5

9:55 a.m.-6:30 a.m.

2 stops15h 35m

London Heathrow

Sun 11/5

8:45 a.m.-9:28 p.m.

2 stops17h 43m

C$ 839

LondonLondon

YXU - LHR

YXULHR

London

Sun 4/5

9:55 a.m.-6:35 a.m.

1 stop15h 40m

London Heathrow

Sun 11/5

12:05 p.m.-9:28 p.m.

1 stop14h 23m

C$ 866

LondonLondon

YXU - LHR

YXULHR

London

Sat 12/4

3:25 p.m.-8:35 a.m.

2 stops12h 10m

London Heathrow

Fri 25/4

8:30 a.m.-2:48 p.m.

1 stop11h 18m

C$ 878

LondonLondon

YXU - LHR

YXULHR

London

Mon 5/5

3:35 p.m.-10:10 a.m.

2 stops13h 35m

London Heathrow

Mon 12/5

2:10 p.m.-9:18 a.m.

2 stops24h 08m

C$ 939

LondonLondon

YXU - LHR

YXULHR

London

Mon 5/5

8:00 p.m.-12:05 p.m.

1 stop35h 05m

London Heathrow

Mon 12/5

6:15 a.m.-7:09 p.m.

2 stops41h 54m

C$ 1,573

LondonLondon

YXU - LHR

YXULHR

London

Mon 21/4

9:55 a.m.-6:30 a.m.

2 stops15h 35m

C$ 558

LondonLondon

YXU - LHR

YXULHR

London

Mon 21/4

12:20 p.m.-7:20 p.m.

3 stops50h 00m

C$ 694

LondonLondon

YXU - LHR

YXULHR

London

Sun 4/5

9:55 a.m.-10:00 a.m.

3 stops19h 05m

C$ 912

LondonLondon

YXU - LHR

YXULHR

London

Sun 4/5

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

3 stops20h 00m

C$ 1,272

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

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$ 874). 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 21 March 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 21 March 2025.
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

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
1,567 reviews
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

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
8,605 reviews
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

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
2,783 reviews
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

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
7.0
Good
8,914 reviews
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Lufthansa
6.7
Okay
6,944 reviews
SWISS
7.5
Good
1,567 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Food

7.0

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?

    Air Canada, at C$ 839, was found to be the cheapest airline from London, Ontario to London Heathrow Airport.Alternate airlines to your destination round-trip include Lufthansa and United Airlines. These flights start at 33% 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 Lufthansa (C$ 558), Air Canada (C$ 912), and SWISS (C$ 1,272).

  • 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$ 874). 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
Hounslow
Sutton
Slough
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

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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 21 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 818AverageC$ 1,217FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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?

Cheapflights simply makes it quick and affordable to book flights from London to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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