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Cheap flights from London Heathrow Airport to Ontario from $425

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 1/23. 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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Find the cheapest flights from London Heathrow Airport to Los Angeles

Cheap round-trip flights

These are some of the best round-trip flight deals from London Heathrow Airport to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London Heathrow Airport to Los Angeles.

Cheap last minute flights

Planning a quick getaway from London Heathrow Airport to Los Angeles? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from London Heathrow Airport to Los Angeles

Find recent round-trip train or bus tickets from London Heathrow Airport to Los Angeles.

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
8:00 pm - 10:13 pmLHR-ONT
34h 13m2 stops
6:05 am - 9:40 amONT-LHR
19h 35m1 stop
Wed, Dec 4 - Tue, Dec 10
6:20 am - 4:45 pmLHR-ONT
18h 25m2 stops
6:00 am - 7:05 amONT-LHR
17h 05m2 stops
$566Delta
Find Deal
Wed, Dec 4 - Tue, Dec 10
10:05 am - 6:04 pmLHR-ONT
14h 59m1 stop
1:40 pm - 9:40 amONT-LHR
13h 00m1 stop
$615Lufthansa
Find Deal
Tue, Mar 18 - Tue, Mar 25
1:15 pm - 10:32 pmLHR-ONT
17h 17m1 stop
1:00 pm - 10:35 amONT-LHR
13h 35m1 stop
$619Virgin Atlantic
Find Deal
Mon, Jan 27 - Mon, Feb 3
10:45 am - 4:28 pmLHR-ONT
13h 43m1 stop
1:00 pm - 10:35 amONT-LHR
13h 35m1 stop
$621KLM
Find Deal
Tue, Jan 14 - Tue, Jan 21
11:35 am - 8:55 pmLHR-ONT
17h 20m1 stop
1:40 pm - 9:40 amONT-LHR
13h 00m1 stop
$627Lufthansa
Find Deal
Wed, Mar 5 - Mon, Mar 10
10:05 am - 6:04 pmLHR-ONT
15h 59m1 stop
1:00 pm - 12:00 pmONT-LHR
15h 00m1 stop
$630United Airlines
Find Deal
Wed, Jan 29 - Thu, Feb 13
10:35 am - 6:00 pmLHR-ONT
15h 25m1 stop
1:00 pm - 9:40 amONT-LHR
12h 40m1 stop
$633United Airlines
Find Deal
Mon, Apr 28 - Mon, May 5
12:30 pm - 10:52 pmLHR-ONT
18h 22m1 stop
1:00 pm - 10:35 amONT-LHR
13h 35m1 stop
$646KLM
Find Deal
Tue, Feb 11 - Wed, Feb 19
10:45 am - 11:53 pmLHR-ONT
21h 08m1 stop
1:21 pm - 10:00 amONT-LHR
12h 39m1 stop
$654Virgin Atlantic
Find Deal
Wed, Feb 19 - Wed, Feb 26
2:50 pm - 7:11 amLHR-ONT
24h 21m2 stops
Thu, Jan 23
3:15 pm - 6:02 pmLHR-ONT
58h 47m2 stops
Tue, Nov 26
9:20 am - 9:42 pmLHR-ONT
20h 22m1 stop
$664Lufthansa
Find Deal
Mon, Dec 9
1:00 pm - 2:44 pmLHR-ONT
33h 44m2 stops
$665Air Canada
Find Deal
Wed, Nov 27
12:50 pm - 10:02 pmLHR-ONT
17h 12m1 stop
$670Lufthansa
Find Deal
Wed, Nov 27
6:30 am - 8:44 pmLHR-ONT
22h 14m2 stops
$673United Airlines
Find Deal
Fri, Nov 29
6:30 am - 5:43 pmLHR-ONT
19h 13m2 stops
$674United Airlines
Find Deal
Tue, Nov 26
11:50 am - 8:40 pmLHR-ONT
16h 50m1 stop
$741Finnair
Find Deal
Sun, Dec 8
1:50 pm - 10:16 pmLHR-ONT
16h 26m1 stop
$775Finnair
Find Deal
Wed, Jan 22
2:30 pm - 12:43 pmLHR-ONT
30h 13m2 stops
$1,540Air Canada
Find Deal
Fri, Jan 24
10:05 am - 5:43 pmLHR-ONT
15h 38m1 stop
1:55 pm - 12:00 pmONT-LHR
14h 05m1 stop
$965United Airlines
Find Deal
Mon, Nov 25 - Mon, Dec 2
12:40 pm - 10:45 pmLHR-ONT
18h 05m1 stop
11:53 am - 10:35 amONT-LHR
14h 42m1 stop
$997KLM
Find Deal
Fri, Nov 22 - Mon, Nov 25
2:30 pm - 10:02 pmLHR-ONT
15h 32m1 stop
10:43 am - 7:20 amONT-LHR
12h 37m1 stop
$1,001British Airways
Find Deal
Tue, Nov 26 - Tue, Dec 3
10:05 am - 5:43 pmLHR-ONT
15h 38m1 stop
1:55 pm - 12:00 pmONT-LHR
14h 05m1 stop
$1,003United Airlines
Find Deal
Fri, Nov 22 - Wed, Nov 27
11:10 am - 10:23 pmLHR-ONT
19h 13m2 stops
10:35 am - 10:10 amONT-LHR
15h 35m2 stops
$1,009
Find Deal
Fri, Nov 22 - Mon, Nov 25
1:50 pm - 10:14 pmLHR-ONT
16h 24m1 stop
10:43 am - 7:20 amONT-LHR
12h 37m1 stop
$1,025Iberia
Find Deal
Fri, Nov 22 - Mon, Nov 25
1:50 pm - 10:14 pmLHR-ONT
16h 24m1 stop
11:59 pm - 12:05 pmONT-LHR
28h 06m1 stop
$1,039British Airways
Find Deal
Fri, Nov 22 - Sun, Nov 24
1:50 pm - 10:14 pmLHR-ONT
16h 24m1 stop
10:41 am - 7:20 amONT-LHR
12h 39m1 stop
$1,063Iberia
Find Deal
Sat, Nov 23 - Fri, Dec 6
11:10 am - 10:23 pmLHR-ONT
19h 13m2 stops
10:35 am - 10:10 amONT-LHR
15h 35m2 stops
$1,083
Find Deal
Tue, Nov 26 - Wed, Dec 11
11:10 am - 10:23 pmLHR-ONT
19h 13m2 stops
6:00 am - 6:30 amONT-LHR
16h 30m2 stops
$1,086Air Canada
Find Deal
Fri, Nov 22 - Sun, Nov 24

United Airlines flights from London Heathrow Airport to Ontario

Our best United Airlines deals on London Heathrow Airport to Ontario flight tickets
United Airlines
Jan 29
LHR10:05 amLondon Heathrow
15h 59m
1 stop
ONT6:04 pmOntario
Feb 13
ONT1:00 pmOntario
15h 00m
1 stop
LHR12:00 pmLondon Heathrow
United Airlines
Apr 28
LHR10:35 amLondon Heathrow
15h 25m
1 stop
ONT6:00 pmOntario
May 5
ONT1:00 pmOntario
12h 40m
1 stop
LHR9:40 amLondon Heathrow
United Airlines
Dec 11
LHR8:00 amLondon Heathrow
21h 42m
2 stops
ONT9:42 pmOntario
Dec 24
ONT6:10 amOntario
21h 05m
2 stops
LHR11:15 amLondon Heathrow

Delta flights from London Heathrow Airport to Ontario

Our best Delta deals on London Heathrow Airport to Ontario flight tickets
Delta
Dec 4
LHR6:20 amLondon Heathrow
18h 25m
2 stops
ONT4:45 pmOntario
Dec 10
ONT6:00 amOntario
17h 05m
2 stops
LHR7:05 amLondon Heathrow
Delta
Feb 18
LHR10:45 amLondon Heathrow
13h 43m
1 stop
ONT4:28 pmOntario
Feb 24
ONT1:21 pmOntario
12h 39m
1 stop
LHR10:00 amLondon Heathrow
Delta
Dec 4
LHR1:15 pmLondon Heathrow
17h 30m
1 stop
ONT10:45 pmOntario
Dec 10
ONT6:00 amOntario
20h 00m
1 stop
LHR10:00 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 cheapest month to fly to Ontario?

In general, April 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 $586. If you aren’t able to travel during the month of April, then book flights to Ontario from London Heathrow Airport during February instead. Flights to Ontario in February, while not as cheap as those in April, still average around $594.

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 Sunday when prices can be found for as low as $0. 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 $961.

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

In the evening is the cheapest time of day to fly from London Heathrow Airport to Ontario when you can find flight prices for as low as $0. Flying to Ontario in the evening 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?

Most flyers found that booking tickets 58 days in advance of their planned departure date is the best time to get cheap flights to Ontario. During this timeframe, flight prices are around $718. However, in the past 72 hours, people saw flights from London Heathrow Airport for as low as $475.

Can stopping save me money on London Heathrow Airport to Ontario flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Ontario.

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

$425

Fastest flight time

13h 27m

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 $425. The best round-trip flight deal from London Heathrow Airport to Ontario found on momondo in the last 72 hours is $561.
The fastest flight from London Heathrow Airport to Ontario takes 13h 27m
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 27m 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 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.


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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