Cheap Flights from Heathrow to Ontario from £380

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

All the information you need to plan the best LHR to ONT flight in 2021: compare Heathrow to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.

LHR - ONT Price	£532 - £977
ONT Temperature	12 - 26 °C
ONT Precipitation	3 - 86 mm

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 £588 Average for round-trip flights in December 2021
Round-trip from £400 From London Heathrow to Ontario

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

£588

Average for round-trip flights in December 2021

Round-trip from

£400

From London Heathrow to Ontario

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.

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

Flights from London Heathrow Airport to Ontario lean towards being more expensive in July. Prices are generally better when you fly from London Heathrow Airport to Ontario in November, with the cheapest ticket starting at £270.

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

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

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

Users have found that booking a flight from London Heathrow Airport to Ontario 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 London Heathrow Airport to Ontario for as little as £409 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 £487 for flights departing within the next 3 days.

Cheap flights from Heathrow to Ontario in December, January 2022

The best prices found for LHR to ONT flights in December, January

29 Jan - 6 Feb

£380pp

LHR

London Heathrow

British Airways

1 STOP

ONT

Ontario

ONT

Ontario

British Airways

1 STOP

LHR

London Heathrow

25 Jan - 9 Feb

£389pp

LHR

London Heathrow

Multiple airlines

2 STOPS

ONT

Ontario

ONT

Ontario

Multiple Airlines

2 STOPS

LHR

London Heathrow

18 Jan - 31 Jan

£390pp

LHR

London Heathrow

KLM

2 STOPS

ONT

Ontario

ONT

Ontario

KLM

1 STOP

LHR

London Heathrow

London Heathrow to Ontario 2022 flight deals

Cheap flights to Ontario from Heathrow found for this year

28 Dec - 12 Jan

£479pp

LHR

London Heathrow

United Airlines

1 STOP

ONT

Ontario

ONT

Ontario

United Airlines

1 STOP

LHR

London Heathrow

29 Dec - 11 Jan

£481pp

LHR

London Heathrow

Multiple airlines

2 STOPS

ONT

Ontario

ONT

Ontario

Multiple Airlines

2 STOPS

LHR

London Heathrow

28 Dec - 11 Jan

£490pp

LHR

London Heathrow

Multiple airlines

2 STOPS

ONT

Ontario

ONT

Ontario

Multiple Airlines

2 STOPS

LHR

London Heathrow

Last-minute flights from Heathrow to Ontario

Late deals on return flights to Ontario from Heathrow, departing today and this week

8 Dec - 12 Jan

£643pp

LHR

London Heathrow

Air Canada

2 STOPS

ONT

Ontario

ONT

Ontario

Air Canada

2 STOPS

LHR

London Heathrow

8 Dec - 12 Jan

£643pp

LHR

London Heathrow

American Airlines

1 STOP

ONT

Ontario

ONT

Ontario

American Airlines

1 STOP

LHR

London Heathrow

12 Dec - 8 Jan

£649pp

LHR

London Heathrow

United Airlines

2 STOPS

ONT

Ontario

ONT

Ontario

United Airlines

2 STOPS

LHR

London Heathrow

One-way flights to Ontario from London Heathrow

The cheapest one-way flights from Heathrow to Ontario

08:55 - 17:44

JetBlue

1 stop

16h 49m

LHR - ONT

£710

07:15 - 18:56

Multiple Airlines

2 stops

19h 41m

LHR - ONT

£727

Gotogate

11:05 - 16:08

Qatar Airways

2 stops

37h 03m

LHR - ONT

£734

qatarairways.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Heathrow to Ontario

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

If you book a flight to Ontario from London Heathrow, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the centre of Ontario. There are 0 flights from London Heathrow to Ontario per day from 5 different airlines.

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 London Heathrow Airport to Ontario for under £400 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to Ontario for under £400. The cheapest flight booked recently is on British Airways for just £380, but on average you can expect to pay £398.

Are there last-minute flights available from London Heathrow Airport to Ontario for under £700?

There are currently 20+ open flights from London Heathrow Airport to Ontario within the next 7 days for less than £700.

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

Currently priced at £380, British Airways will fly you from London Heathrow Airport to Ontario and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and United Airlines - these airlines can fly you to your destination from £383 and £394, respectively. Users have found that British Airways is 28% cheaper than the other options available to this destination.

What are the cheapest flights from London Heathrow Airport to Ontario?

On average you can expect to pay £480 for a flight from London Heathrow Airport to Ontario. The cheapest flight overall is £333 while the most popular route, (London Heathrow - Ontario) is currently priced at £371.

What are the most popular airlines that fly from London Heathrow Airport to Ontario?

Consider American Airlines, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Ontario.

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COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Heathrow?

Information is based on travel restrictions from London Heathrow to Ontario

Most visitors from London Heathrow need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Ontario.

Do I need a test to fly back to Heathrow from Ontario?

Returning to London Heathrow from Ontario

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Heathrow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

London to Los Angeles from £675 pp

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Heathrow to Ontario.

£1 = $1.34

Airports servicing London

Heathrow (LHR)

Airports servicing Ontario

Ontario (ONT)

Airline	Cheapest	Average	Flexibility	On-time
Finnair	£272	£423	No cancel fee	76%	Search Finnair flights
United Airlines	£282	£519	No cancel fee	69%	Search United Airlines flights
Virgin Atlantic	£290	£501	No cancel fee	72%	Search Virgin Atlantic flights
British Airways	£324	£463	No cancel fee	70%	Search British Airways flights

Cheap flights from Heathrow to Ontario

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

All the information you need to plan the best LHR to ONT flight in 2021: compare Heathrow to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.

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

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

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

Cheap flights from Heathrow to Ontario in December, January 2022

The best prices found for LHR to ONT flights in December, January

London Heathrow to Ontario 2022 flight deals

Cheap flights to Ontario from Heathrow found for this year

Last-minute flights from Heathrow to Ontario

Late deals on return flights to Ontario from Heathrow, departing today and this week

One-way flights to Ontario from London Heathrow

The cheapest one-way flights from Heathrow to Ontario

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Heathrow to Ontario

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

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

Can I find flights from London Heathrow Airport to Ontario for under £400 on Cheapflights?

Are there last-minute flights available from London Heathrow Airport to Ontario for under £700?

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

What are the cheapest flights from London Heathrow Airport to Ontario?

What are the most popular airlines that fly from London Heathrow Airport to Ontario?

Related searches

Flights to Ontario (ONT) from Heathrow

Hire a Car

COVID Restrictions

Do I need a COVID test to fly to Ontario from Heathrow?

Do I need a test to fly back to Heathrow from Ontario?

Alternative routes for Heathrow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Heathrow to Ontario.

Airports servicing London

Airports servicing Ontario

Top 4 airlines flying from London Heathrow to Ontario

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

Popular flight searches

Check out other popular destinations found by fellow travellers in 2021.

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