Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to Ontario from €485

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Ontario departing on 19/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from London Heathrow Airport to Los Angeles

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Los Angeles.
British Airways Logo
10:30 - 17:40LHR-ONT
15h 10m1 stop
British Airways Logo
08:43 - 06:25ONT-LHR
13h 42m1 stop
€485British Airways
Find Deal
Fri, 19 Sep - Sat, 27 Sep
Delta Logo
09:55 - 22:41LHR-ONT
20h 46m2 stops
Delta Logo
09:55 - 13:10ONT-LHR
19h 15m2 stops
€491Delta
Find Deal
Fri, 19 Sep - Sat, 27 Sep
United Airlines Logo
14:50 - 20:53LHR-ONT
14h 03m1 stop
United Airlines Logo
13:33 - 12:20ONT-LHR
14h 47m1 stop
€555United Airlines
Find Deal
Thu, 8 May - Fri, 23 May
United Airlines Logo
12:20 - 20:34LHR-ONT
16h 14m1 stop
United Airlines Logo
13:36 - 10:25ONT-LHR
12h 49m1 stop
€556United Airlines
Find Deal
Thu, 8 May - Thu, 22 May
Delta Logo
10:55 - 23:42LHR-ONT
20h 47m1 stop
Delta Logo
09:55 - 13:30ONT-LHR
19h 35m2 stops
€584Delta
Find Deal
Sun, 1 Jun - Tue, 16 Sep
Delta Logo
09:55 - 22:35LHR-ONT
20h 40m2 stops
Delta Logo
11:05 - 14:15ONT-LHR
19h 10m1 stop
€647Delta
Find Deal
Thu, 5 Jun - Thu, 12 Jun
JetBlue Logo
08:15 - 21:41LHR-ONT
21h 26m1 stop
JetBlue Logo
23:00 - 20:45ONT-LHR
13h 45m1 stop
€699JetBlue
Find Deal
Mon, 15 Sep - Sun, 21 Sep
JetBlue Logo
11:55 - 21:11LHR-ONT
17h 16m1 stop
JetBlue Logo
22:59 - 20:45ONT-LHR
13h 46m1 stop
€716JetBlue
Find Deal
Tue, 6 May - Tue, 20 May
Virgin Atlantic Logo
13:35 - 23:42LHR-ONT
18h 07m2 stops
Virgin Atlantic Logo
07:05 - 09:15ONT-LHR
18h 10m2 stops
€733Virgin Atlantic
Find Deal
Thu, 5 Jun - Thu, 12 Jun
American Airlines Logo
15:40 - 21:58LHR-ONT
14h 18m1 stop
American Airlines Logo
16:35 - 12:50ONT-LHR
12h 15m1 stop
€734American Airlines
Find Deal
Fri, 2 May - Sun, 18 May

KLM flights from London Heathrow Airport to Ontario

Our best KLM deals on London Heathrow Airport to Ontario flight tickets
KLM
24 May
LHR10:55London Heathrow
13h 22m
1 stop
ONT16:17Ontario
7 Oct
ONT13:00Ontario
12h 50m
1 stop
LHR09:50London Heathrow
KLM
1 Jun
LHR10:55London Heathrow
13h 22m
1 stop
ONT16:17Ontario
10 Jun
ONT13:15Ontario
12h 35m
1 stop
LHR09:50London Heathrow
KLM
21 May
LHR11:00London Heathrow
13h 17m
1 stop
ONT16:17Ontario
28 May
ONT13:10Ontario
12h 40m
1 stop
LHR09:50London Heathrow

Delta flights from London Heathrow Airport to Ontario

Our best Delta deals on London Heathrow Airport to Ontario flight tickets
Delta
19 Sept
LHR09:55London Heathrow
20h 46m
2 stops
ONT22:41Ontario
27 Sept
ONT09:55Ontario
19h 15m
2 stops
LHR13:10London Heathrow
Delta
1 Jun
LHR10:55London Heathrow
20h 47m
1 stop
ONT23:42Ontario
16 Sept
ONT09:55Ontario
19h 35m
2 stops
LHR13:30London Heathrow
Delta
5 Jun
LHR09:55London Heathrow
20h 40m
2 stops
ONT22:35Ontario
12 Jun
ONT11:05Ontario
19h 10m
1 stop
LHR14:15London Heathrow

See travel insights to Los Angeles from

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

What is the cheapest month to fly to Ontario?

If you don’t want to visit Ontario in February, then you should wait until April to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of €569.

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 22 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around €627 when searching 22 weeks out.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 €450 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

€678

Fastest flight time

13h 17m

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 €678. The best return flight deal from London Heathrow Airport to Ontario found on momondo in the last 72 hours is €485.
The fastest flight from London Heathrow Airport to Ontario takes 13h 17m
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)

  • 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 17m, 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.


An easier way to manage your Ontario trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sun 27/4
Sun 4/5

Find better results for your trip to the United States