Cheap flights from Heathrow to Ontario International

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

LHR - ONT
Price
£392 - £720

Popular in

August

High demand for flights, 28% potential price rise

Cheapest in

February

Best time to find cheap flights, 24% potential price drop

Average price

£429

Average for round-trip flights in January 2021

Round-trip from

£392

From Heathrow to Ontario International

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 return from Heathrow to Ontario International?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 16% on your flight compared to booking on days when demand is much higher.

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

Users have found that booking a flight from Heathrow to Ontario International at least 61 days early can save you up to 40% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Heathrow to Ontario International for as little as £401 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £478 for flights departing within the next 3 days.

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

Flights from Heathrow to Ontario International lean towards being more expensive in July. Prices are generally better when you fly from Heathrow to Ontario International in November, with the cheapest ticket starting at £265.

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

It’s optimal to fly from Heathrow to Ontario International in the afternoon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Heathrow to Ontario International in January, February 2021

The best prices found for LHR to ONT flights in January, February
12 Feb - 16 Feb
£402pp
LHR
London Heathrow
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
LHR
London Heathrow
12 Feb - 16 Feb
£403pp
LHR
London Heathrow
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
LHR
London Heathrow
12 Feb - 16 Feb
£405pp
LHR
London Heathrow
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
LHR
London Heathrow

Heathrow to Ontario International 2021 flight deals

Cheap flights to Ontario International from Heathrow found for this year
23 Apr - 7 May
£322pp
LHR
London Heathrow
Air France
 
1 STOP
ONT
Ontario
ONT
Ontario
Air France
 
1 STOP
LHR
London Heathrow
23 Apr - 7 May
£324pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Air France
 
1 STOP
LHR
London Heathrow
23 Apr - 7 May
£326pp
LHR
London Heathrow
Air France
   
2 STOPS
ONT
Ontario
ONT
Ontario
Air France
 
1 STOP
LHR
London Heathrow

One-way flights to Ontario International from Heathrow

The cheapest one-way flights from Heathrow to Ontario International
09:30 - 15:12
Air Canada
2 stops
37h 42m
LHR - ONT
Air Canada
£1,138
01:30 - 16:47
KLM
2 stops
23h 17m
LHR - ONT
KLM
£1,147
KLM
08:45 - 11:02
British Airways
1 stop
34h 17m
LHR - ONT
British Airways
£1,315

Related info for your journey

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

Flight FAQs

From Heathrow to Ontario International

Are flight prices decreasing from Heathrow to Ontario 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 Heathrow and Ontario 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.

Which airlines flying from London Heathrow to Ontario have flexible cancellations due to COVID-19?

British Airways, United Airlines, and Virgin Atlantic are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Heathrow to Ontario International for under £369 on Cheapflights?

Yes, there are multiple flights from Heathrow to Ontario International for under £369. The cheapest flight booked recently is on Air France for just £322, but on average you can expect to pay £464.

Are there direct flights from Heathrow to Ontario International for under £295 on Cheapflights?

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

Does it rain more in Heathrow or Ontario?

Expected rainfall in Heathrow is less than in Ontario. You can expect this to be the case over the next 24 days.

Is Heathrow weather warmer or cooler than Ontario?

Our data indicates that the weather will be 35 °C on average in the month of July. The temperature in Ontario is typically hotter than in Heathrow. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long does is the flight from Heathrow to Ontario International?

There are many flights that can get you from Heathrow to Ontario International in 15h 07m. Fly via United Airlines, Lufthansa, or Air France to get the fastest option. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Heathrow to Ontario International return?

Flying on Air France is currently your cheapest option to Ontario International, with prices starting at £323. Additional return tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at £403 and £404, respectively. Users have found that Air France is 37% cheaper than the other options available to this destination.

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

One-way options have recently been found by users for as low as £273 on KLM. Other airlines that offer cheap prices include British Airways from £287 and Air Canada from £1,138 one-way.

Alternative routes for Heathrow to Ontario International

Destination information for Ontario International

Things to know before you go. Useful info for your trip from Heathrow to Ontario International
Today's exchange rate
£1 = $1.36

Airports servicing London

Airports servicing Ontario

Top 4 airlines flying from Heathrow to Ontario International

The chart below displays the airlines Cheapflights users travelling from Heathrow to Ontario International choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Finnair
£362 £563 No cancel fee 76%
Search Finnair flights
British Airways
£432 £616 No cancel fee 70%
Search British Airways flights
Virgin Atlantic
£386 £666 No cancel fee 72%
Search Virgin Atlantic flights
United Airlines
£375 £690 No cancel fee 69%
Search United Airlines flights
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