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Cheap flights from London Heathrow Airport to Ontario from $452

This is the cheapest one-way 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 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Los Angeles

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London Heathrow Airport to Los Angeles.
Virgin Atlantic Logo
1:25 pm - 10:43 pmLHR-ONT
17h 18m1 stop
Virgin Atlantic Logo
2:55 pm - 2:15 pmONT-LHR
15h 20m1 stop
$518Virgin Atlantic
Find Deal
Fri, May 2 - Fri, May 9
Virgin Atlantic Logo
6:15 am - 11:41 pmLHR-ONT
25h 26m2 stops
Virgin Atlantic Logo
11:44 am - 2:15 pmONT-LHR
18h 31m1 stop
$530Virgin Atlantic
Find Deal
Wed, Apr 30 - Wed, May 21
KLM Logo
1:25 pm - 10:43 pmLHR-ONT
17h 18m1 stop
KLM Logo
1:10 pm - 9:50 amONT-LHR
12h 40m1 stop
$541KLM
Find Deal
Fri, May 2 - Fri, May 9
KLM Logo
10:55 am - 4:33 pmLHR-ONT
13h 38m1 stop
KLM Logo
12:07 pm - 11:10 amONT-LHR
15h 03m1 stop
$542KLM
Find Deal
Sat, Apr 19 - Tue, Apr 29
British Airways Logo
3:10 pm - 10:10 pmLHR-ONT
15h 00m1 stop
British Airways Logo
4:35 pm - 12:50 pmONT-LHR
12h 15m1 stop
$544British Airways
Find Deal
Tue, Apr 22 - Tue, Apr 29
British Airways Logo
4:25 pm - 11:50 pmLHR-ONT
15h 25m1 stop
British Airways Logo
4:35 pm - 2:40 pmONT-LHR
14h 05m1 stop
$546British Airways
Find Deal
Wed, Apr 23 - Fri, May 2
Iberia Logo
9:15 am - 11:36 pmLHR-ONT
22h 21m2 stops
Iberia Logo
12:49 pm - 2:25 pmONT-LHR
17h 36m1 stop
$548Iberia
Find Deal
Thu, Sep 11 - Wed, Sep 17
United Airlines Logo
12:20 pm - 8:34 pmLHR-ONT
16h 14m1 stop
United Airlines Logo
3:10 pm - 2:10 pmONT-LHR
15h 00m1 stop
$623United Airlines
Find Deal
Sun, May 4 - Sun, May 18
Iberia Logo
4:25 pm - 11:36 pmLHR-ONT
15h 11m1 stop
Iberia Logo
10:54 am - 9:00 amONT-LHR
14h 06m1 stop
$645Iberia
Find Deal
Fri, Sep 12 - Sun, Sep 28
United Airlines Logo
6:30 am - 9:10 pmLHR-ONT
22h 40m2 stops
United Airlines Logo
10:00 am - 6:20 amONT-LHR
36h 20m2 stops
$850United Airlines
Find Deal
Sun, Jun 1 - Sat, Sep 20

British Airways flights from London Heathrow Airport to Ontario

Our best British Airways deals on London Heathrow Airport to Ontario flight tickets
British Airways
Apr 22
LHR3:10 pmLondon Heathrow
15h 00m
1 stop
ONT10:10 pmOntario
Apr 29
ONT4:35 pmOntario
12h 15m
1 stop
LHR12:50 pmLondon Heathrow
British Airways
Apr 23
LHR4:25 pmLondon Heathrow
15h 25m
1 stop
ONT11:50 pmOntario
May 2
ONT4:35 pmOntario
14h 05m
1 stop
LHR2:40 pmLondon Heathrow
British Airways
May 2
LHR3:10 pmLondon Heathrow
16h 40m
1 stop
ONT11:50 pmOntario
May 5
ONT2:44 pmOntario
14h 01m
1 stop
LHR12:45 pmLondon Heathrow

Iberia flights from London Heathrow Airport to Ontario

Our best Iberia deals on London Heathrow Airport to Ontario flight tickets
Iberia
Sep 11
LHR9:15 amLondon Heathrow
22h 21m
2 stops
ONT11:36 pmOntario
Sep 17
ONT12:49 pmOntario
17h 36m
1 stop
LHR2:25 pmLondon Heathrow
Iberia
Sep 12
LHR4:25 pmLondon Heathrow
15h 11m
1 stop
ONT11:36 pmOntario
Sep 28
ONT10:54 amOntario
14h 06m
1 stop
LHR9:00 amLondon Heathrow
Iberia
Sep 28
LHR4:25 pmLondon Heathrow
15h 11m
1 stop
ONT11:36 pmOntario
Oct 8
ONT12:51 pmOntario
13h 59m
1 stop
LHR10:50 amLondon 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 typical price of a round-trip flight between London Heathrow Airport and Ontario?

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from London Heathrow Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $589. If you aren’t able to travel during the month of February, then book flights to Ontario from London Heathrow Airport during April instead. Flights to Ontario in April, while not as cheap as those in February, still average around $655.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $602. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Ontario for around $991.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from London Heathrow Airport to Ontario when you can find flight prices for as low as $602. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $814 on average. Flights to Ontario from London Heathrow Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $722 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 $518 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 round-trip 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

$452

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 $452. The best round-trip flight deal from London Heathrow Airport to Ontario found on momondo in the last 72 hours is $518.
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?

    London Heathrow and Ontario are 5408.1 mi apart from one another. 13h 17m is a normal flight duration for this route.

  • 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 updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Ontario Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Ontario Airport.

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

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from London Heathrow Airport to Ontario?


Best airlines flying from London Heathrow Airport to Ontario

Compare and see reviews for airlines that fly from London Heathrow Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $662Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Ontario from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential London to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.


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