What is the cheapest airline that flies from London Heathrow to Ontario?

JetBlue and Avianca are the most popular carriers operating from London Heathrow to Ontario

When did momondo last update prices for flights from London Heathrow Airport to Ontario Airport?

Prices for flights from London Heathrow Airport to Ontario Airport are refreshed on a daily basis.

How old do you have to be to fly from London Heathrow Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€479 Cheap Flights from London Heathrow Airport to Ontario in 2025

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Find the cheapest flights from London Heathrow Airport to Los Angeles

Round-trip

One-way

Last minute

Cheap return flights

11:30 - 22:48LHR-ONT

19h 18m2 stops

12:45 - 10:50ONT-LHR

14h 05m1 stop

€479British Airways

Find Deal

Tue, 2 Sep - Wed, 24 Sep

11:15 - 17:52LHR-ONT

14h 37m1 stop

12:45 - 12:45ONT-LHR

16h 00m1 stop

€495British Airways

Find Deal

Tue, 2 Sep - Wed, 24 Sep

06:30 - 22:42LHR-ONT

24h 12m2 stops

06:00 - 12:15ONT-LHR

22h 15m2 stops

€499Delta

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Tue, 25 Nov - Fri, 5 Dec

12:30 - 21:14LHR-ONT

16h 44m1 stop

13:00 - 10:35ONT-LHR

13h 35m1 stop

€514KLM

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Thu, 8 Jan - Sun, 18 Jan

11:00 - 16:14LHR-ONT

13h 14m1 stop

13:00 - 09:50ONT-LHR

12h 50m1 stop

€522KLM

Find Deal

Wed, 8 Oct - Sat, 11 Oct

06:30 - 19:11LHR-ONT

20h 41m2 stops

11:40 - 14:15ONT-LHR

18h 35m1 stop

€537Delta

Find Deal

Tue, 26 Aug - Tue, 2 Sep

08:15 - 21:29LHR-ONT

21h 14m1 stop

22:56 - 20:45ONT-LHR

14h 49m1 stop

€589JetBlue

Find Deal

Thu, 16 Oct - Sat, 25 Oct

11:25 - 17:23LHR-ONT

13h 58m1 stop

13:53 - 10:25ONT-LHR

12h 32m1 stop

€607United Airlines

Find Deal

Fri, 26 Sep - Wed, 8 Oct

06:30 - 17:29LHR-ONT

18h 59m2 stops

18:38 - 06:55ONT-LHR

28h 17m2 stops

€617United Airlines

Find Deal

Mon, 25 Aug - Mon, 1 Sep

08:15 - 21:29LHR-ONT

21h 14m1 stop

22:56 - 20:45ONT-LHR

13h 49m1 stop

€639JetBlue

Find Deal

Sun, 7 Sep - Mon, 15 Sep

Delta flights from London Heathrow Airport to Ontario

Our best Delta deals on London Heathrow Airport to Ontario flight tickets

Delta

25 Nov

LHR06:30London Heathrow

24h 12m

2 stops

ONT22:42Ontario

5 Dec

ONT06:00Ontario

22h 15m

2 stops

LHR12:15London Heathrow

€499

Find similar

Delta

26 Aug

LHR06:30London Heathrow

20h 41m

2 stops

ONT19:11Ontario

2 Sept

ONT11:40Ontario

18h 35m

1 stop

LHR14:15London Heathrow

€537

Find similar

Delta

30 Aug

LHR08:40London Heathrow

22h 02m

2 stops

ONT22:42Ontario

5 Sept

ONT07:05Ontario

19h 10m

2 stops

LHR10:15London Heathrow

€539

Find similar

United Airlines flights from London Heathrow Airport to Ontario

Our best United Airlines deals on London Heathrow Airport to Ontario flight tickets

United Airlines

26 Sept

LHR11:25London Heathrow

13h 58m

1 stop

ONT17:23Ontario

8 Oct

ONT13:53Ontario

12h 32m

1 stop

LHR10:25London Heathrow

€607

Find similar

United Airlines

25 Aug

LHR06:30London Heathrow

18h 59m

2 stops

ONT17:29Ontario

1 Sept

ONT18:38Ontario

28h 17m

2 stops

LHR06:55London Heathrow

€617

Find similar

United Airlines

25 Aug

LHR14:50London Heathrow

13h 53m

1 stop

ONT20:43Ontario

1 Sept

ONT18:50Ontario

28h 35m

1 stop

LHR07:25London Heathrow

€643

Find similar

How to get the cheapest flight ticket from London Heathrow Airport to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

If you don’t want to visit Ontario in February, then you should wait until September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of €555.

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

You are more likely to see cheaper flights to Ontario from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around €627 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from London Heathrow Airport for as low as €471 on momondo.

When to book flights from London Heathrow Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Ontario (LHR to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Ontario

Best price found	€681
Fastest flight time	13h 14m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from London Heathrow Airport in the past 72 hours is €681. The best return flight deal from London Heathrow Airport to Ontario found on momondo in the last 72 hours is €479.

The fastest flight from London Heathrow Airport to Ontario takes 13h 14m

There are no direct flights from London Heathrow Airport to Ontario. Popular non-direct route for this connection is London Heathrow Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

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How far is London Heathrow to Ontario by plane?
There are 8703.4 km between London Heathrow and Ontario. Flights usually cover this in 13h 14m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Heathrow Airport to Ontario Airport?
Prices for flights from London Heathrow Airport to Ontario Airport are refreshed on a daily basis.
How old do you have to be to fly from London Heathrow Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ontario for you.

Can I find flights from London to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Ontario?

momondo helps you find the best flight between London and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.