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Cheap flights from Ontario (ONT) to Heathrow (LHR)

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The best prices from Ontario to Heathrow are usually found in November or April, booked 41 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

How to find the cheapest flight from
Ontario (ONT) to Heathrow (LHR)

ONT - LHR
Price
$428 - $772
LHR
Temperature
46.4 - 75.2 °F
LHR
Rainfall
1.5 - 2.6 inches
Popular in June High demand for flights, 24% potential price rise
Cheapest in November Best time to find cheap flights, 27% potential price drop
Average price $504 Average for round-trip flights in September 2020
Round-trip from C$ 428 From Ontario to Heathrow
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to Heathrow?

Travelers have found that booking a Monday departure is the best way to save up to 30% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Ontario to Heathrow?

Find a great deal and save up to 38% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Heathrow within the next two weeks, with the cheapest ticket starting at $813.

What is the cheapest month to fly from Ontario to Heathrow?

February can be a great time to fly to Heathrow from Ontario with a flight ticket averaging about $634. Cheapflights users have found deals in the month of February for as cheap as $394. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Ontario to Heathrow (ONT - LHR)?

A simple way to save on the total cost of your ticket is to fly from Ontario to Heathrow in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the afternoon.

Cheap flights from Ontario to Heathrow in September, October 2020

The best prices found for ONT to LHR flights for September, October
30 Sep - 7 Oct
$845pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
ONT
Ontario
29 Sep - 9 Oct
$846pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario
4 Oct - 12 Oct
$854pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
   
2 STOPS
ONT
Ontario

Ontario to Heathrow 2020 flight deals

Cheap flights to Heathrow from Ontario found for this year
2 Nov - 11 Nov
$704pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
ONT
Ontario
2 Nov - 11 Nov
$828pp
ONT
Ontario
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
   
2 STOPS
ONT
Ontario
2 Nov - 11 Nov
$835pp
ONT
Ontario
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to Heathrow

Late deals on round-trip flights to Heathrow from Ontario, departing today and this week
25 Sep - 30 Oct
$1,364pp
ONT
Ontario
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ONT
Ontario
25 Sep - 30 Oct
$1,368pp
ONT
Ontario
Delta
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Delta
   
2 STOPS
ONT
Ontario
25 Sep - 30 Oct
$1,381pp
ONT
Ontario
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
ONT
Ontario

One-way flights to Heathrow from Ontario

The cheapest one-way flights from Ontario to Heathrow
9:20 am - 1:50 am
British Airways
1 Stop
32h 30m
ONT - LHR
British Airways
$445
KAYAK
8:48 am - 12:15 pm
KLM
2 Stops
19h 27m
ONT - LHR
KLM
$498
KLM
1:30 am - 4:45 am
Multiple Airlines
2 Stops
19h 15m
ONT - LHR
Multiple Airlines

Related info for your journey

Useful info, stats and facts about Ontario to Heathrow flights.

Flight FAQs

From Ontario to Heathrow

Are flight prices decreasing from Ontario to Heathrow due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ontario to Heathrow for under $700 on Cheapflights?

Yes, there are multiple flights from Ontario to Heathrow for under $700. The cheapest flight booked recently is on KLM for just $659, but on average you can expect to pay $700.

Are there nonstop flights from Ontario to Heathrow for under $700 on Cheapflights?

There are no nonstop flights from Ontario to Heathrow, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to Heathrow for under $1,400?

There are currently 5+ open flights from Ontario to Heathrow within the next 7 days for less than $1,400.

Does it rain more in Ontario or Heathrow?

Ontario will have less rainfall in 2 compared to Heathrow over the next 2 days.

Is Ontario weather warmer or cooler than Heathrow?

Expect the weather to be around 95 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Heathrow is generally colder than in Ontario.

How long is the flight from Ontario to Heathrow?

A quick flight from Ontario to Heathrow can take about 13h 15m. British Airways provides one of the quickest options available for as low as $865. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Ontario to Heathrow round-trip?

Our cheapest airline available from Ontario to Heathrow is KLM. Our recent data shows that you can find tickets from as low as $659 on this airline. An additional option worth looking into is British Airways, starting at $677.

What are the cheapest airlines to fly from Ontario to Heathrow one-way?

One-way options have recently been found by users for as low as $374 on British Airways. Other airlines that offer cheap prices include KLM from $431 and Lufthansa from $462 one-way.

Alternative routes for Ontario to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Ontario to Heathrow
Today's exchange rate
$1 = £0.78
Average temperature for September in Heathrow
68.0 °F
Avg rainfall for September in Heathrow
2.1 ″

Airports servicing Ontario

Airports servicing London