How long is the flight from London, Ontario to London Heathrow Airport?

A quick flight from London, Ontario to London Heathrow Airport can take about 30h 45m. Air Canada provides one of the quickest options available for as low as C$ 991. Airlines will cover a distance of 5844 km.

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.

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).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to London Heathrow Airport as you normally would.

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. 0 airlines have flights to London Heathrow from London on a regular basis.

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.

C$ 472+ Cheap Flights from London, ON to London Heathrow Airport

Cheap flight deals from London to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 19 October 2026.

Thu 12/113:25 p.m. -

1 stop10h 05m

Thu 19/119:00 a.m. -

2 stops16h 27m

Deal found 19/10C$ 963

Thu 12/113:25 p.m. -

2 stops12h 55m

Thu 19/119:00 a.m. -

2 stops16h 27m

Deal found 15/10C$ 979

Thu 5/119:05 p.m. -

1 stop9h 15m

Tue 10/116:00 a.m. -

2 stops19h 27m

Deal found 18/10C$ 982

Wed 2/129:05 p.m. -

1 stop9h 15m

Wed 9/126:00 a.m. -

2 stops20h 52m

Deal found 18/10C$ 987

Find flight deals from London to Heathrow

Round-trip from	C$ 966
One-way from	C$ 472

Lufthansa
12/11-19/11
4 total stops
30h 42m total
London to London

Search Deals

WestJet
2/12-31/12
1 total stop
25h 10m total
London to London

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 2/12

6:40 a.m.-12:50 p.m.

1 stop25h 10m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 472

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sat 28/11

9:05 p.m.-9:00 p.m.

2 stops42h 55m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525

Quickest round-trip

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Thu 3/12

3:20 p.m.-8:30 a.m.

1 stop12h 10m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 526

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 2/12

9:05 p.m.-9:20 a.m.

2 stops31h 15m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 527

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Mon 30/11

3:25 p.m.-7:55 a.m.

2 stops35h 30m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 566

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Thu 3/12

3:20 p.m.-12:00 p.m.

2 stops39h 40m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 568

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 2/12

9:05 p.m.-5:55 a.m.

2 stops51h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 568

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sun 1/11

8:30 p.m.-5:55 a.m.

2 stops52h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 585

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 2/12

6:40 a.m.-8:30 a.m.

3 stops20h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 959

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Thu 12/11

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

2 stops12h 55m

London Heathrow

Thu 19/11

7:40 a.m.-8:27 p.m.

2 stops17h 47m

C$ 966

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/10

Showing 1-10 of 15 resultsSorted by cheapest first

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.

YXU-LHR

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.

Related info for your journey

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. 0 airlines have flights to London Heathrow from London on a regular basis.
How long is the flight from London, Ontario to London Heathrow Airport?
A quick flight from London, Ontario to London Heathrow Airport can take about 30h 45m. Air Canada provides one of the quickest options available for as low as C$ 991. Airlines will cover a distance of 5844 km.
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.

See more FAQs

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

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Cheap flights from London, ON to London Heathrow Airport from C$ 472

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Heathrow

Cheapest flights from London to HeathrowExplore 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 19 October 2026.

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 19 October 2026.

Best flights from London to HeathrowDiscover carefully curated flight deals from London to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Discover carefully curated flight deals from London to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Last-minute flights from London to HeathrowDiscover last-minute flight deals from London to Heathrow. Data last updated 19 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Heathrow. Data last updated 19 October 2026 and is based on user searches.

One-way flights from London to HeathrowSearch for one-way flight options from London to Heathrow. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

Search for one-way flight options from London to Heathrow. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

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Use the filters below to find and compare flights from London to London Heathrow Airport that are best for you.

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.

Related info for your journey

What airport do you fly from for flights from London to London Heathrow?

How long is the flight from London, Ontario to London Heathrow Airport?

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

How can I find direct flights from London to Heathrow?

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

Travelling to a place near 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 London to Heathrow

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Complete your trip

Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from London to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 October 2026.

London and Heathrow flights

Browse other London and Heathrow flight options. Last updated on 19 October 2026.

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

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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 19 October 2026.

Best flights from London to Heathrow
Discover carefully curated flight deals from London to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Last-minute flights from London to Heathrow
Discover last-minute flight deals from London to Heathrow. Data last updated 19 October 2026 and is based on user searches.

One-way flights from London to Heathrow
Search for one-way flight options from London to Heathrow. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.