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Cheap flights from London, ON to London Heathrow Airport from C$ 634

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
25 Feb — 4 Mar1
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 20 February 2025.

Round-trip from

C$ 1,047

One-way from

C$ 634

Popular in

December

Cheapest in

October

Average price

C$ 1,084
Air Canada
  • Air Canada
  • 6/4-13/4
  • 4 total stops
  • 40h 23m total
  • London to London
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Air Canada
  • Air Canada
  • 5/4
  • 2 total stops
  • 15h 35m total
  • London to London
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Highest demand for flights based on searches. 15% potential increase in price (C$ 314 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 February 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 20 February 2025.

Sun 6/43:25 p.m.YXU - LHR
2 stops24h 35mAir Canada
Sun 13/49:30 a.m.LHR - YXU
2 stops15h 48mAir Canada
Deal found 20/2C$ 1,047
Sat 5/49:55 a.m.YXU - LHR
2 stops16h 20mUnited Airlines
Sat 12/48:30 a.m.LHR - YXU
2 stops16h 48mUnited Airlines
Deal found 19/2C$ 1,159
Fri 4/43:25 p.m.YXU - LHR
2 stops12h 55mMultiple Airlines
Fri 11/46:50 a.m.LHR - YXU
3 stops18h 28mMultiple Airlines
Deal found 19/2C$ 1,702

Find flights from London to Heathrow within your budget

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 20 February 2025.

Fly from

London

Fly to

Heathrow

Route

Depart

Return

Price

LondonLondon

YXU - LHR

YXULHR

London

Sun 6/4

3:25 p.m.-9:00 p.m.

2 stops24h 35m

London Heathrow

Sun 13/4

9:30 a.m.-8:18 p.m.

2 stops15h 48m

C$ 1,047

LondonLondon

YXU - LHR

YXULHR

London

Sat 5/4

9:55 a.m.-7:15 a.m.

2 stops16h 20m

London Heathrow

Sat 12/4

8:30 a.m.-8:18 p.m.

2 stops16h 48m

C$ 1,159

LondonLondon

YXU - LHR

YXULHR

London

Fri 4/4

3:25 p.m.-9:20 a.m.

2 stops12h 55m

London Heathrow

Fri 11/4

6:50 a.m.-8:18 p.m.

3 stops18h 28m

C$ 1,702

LondonLondon

YXU - LHR

YXULHR

London

Sat 5/4

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

2 stops15h 35m

C$ 634

LondonLondon

YXU - LHR

YXULHR

London

Sat 5/4

9:55 a.m.-6:45 a.m.

2 stops15h 50m

C$ 673

LondonLondon

YXU - LHR

YXULHR

London

Fri 13/6

6:00 a.m.-1:25 p.m.

3 stops26h 25m

C$ 744

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

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.

Travel insights for flights from London to Heathrow

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

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 20 February 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.

What is the cheapest day to fly from London, Ontario to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from London to Heathrow. Price data was last updated on 11 February 2024.

Travelers seeking maximum savings on their London, Ontario to London Heathrow Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 20 February 2025.
United Airlines
7.4
Good
8,768 reviews
Check prices

Food

6.7

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,768 reviews
United Airlines
7.4
Good
8,768 reviews
Check prices

Food

6.7

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Air Canada
7.0
Good
8,748 reviews
United Airlines
7.4
Good
8,768 reviews
Check prices

Food

6.7

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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$ 1,047, was found to be the cheapest airline from London, Ontario to London Heathrow Airport. An alternate airline flying to your destination would be United Airlines. These flights start at 16% lower than the current average price 3 months from now.

  • 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

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Alternative routes for London to Heathrow

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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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 810AverageC$ 1,216FlexibilityNo 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?

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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