LHR - ONT

$494 Find Cheap Flights from London Heathrow Airport to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Ontario departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ontario, as well as popular online travel agencies
Travelers love KAYAK
41’299’237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$689
Typical prices: $585-$551
British Airways
Wed 9/23Tue 9/29
LHR - ONT • 1 stop
Cheapest one-way
$494
British Airways
Tue 9/8
LHR - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Heathrow and Ontario. You'll need at least 1 connection.
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Top layover airports
Dallas (DFW)
Cheapest • Avg $578 (round-trip)
Phoenix (PHX)
Shortest trip • 14h 00m (one-way)
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When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 37% compared to booking last minute.
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When to travel
February
Cheapest • 22% price drop
November
Most popular
Good to know
Good to know
+1
+1
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Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Ontario (LHR-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Ontario

Wed, Sep 23 - Tue, Sep 29
British Airways Logo
2:25 pm - 9:08 pm
LHR
-
ONT
14h 43m
1 stop
British Airways Logo
1:31 pm - 10:30 am
ONT
-
LHR
12h 59m
1 stop
$689British Airways
Tue, May 12 - Tue, Jun 2
Multiple Airlines Logo
10:55 am - 4:17 pm
LHR
-
ONT
13h 22m
1 stop
Multiple Airlines Logo
1:29 pm - 11:00 am
ONT
-
LHR
13h 31m
1 stop
$701Multiple Airlines
Wed, Sep 30 - Sat, Oct 24
Virgin Atlantic Logo
10:55 am - 11:44 pm
LHR
-
ONT
20h 49m
1 stop
Virgin Atlantic Logo
7:00 am - 12:10 pm
ONT
-
LHR
21h 10m
1 stop
$702Virgin Atlantic
Thu, May 21 - Wed, Jun 3
Delta Logo
6:30 am - 4:17 pm
LHR
-
ONT
17h 47m
2 stops
Delta Logo
1:35 pm - 3:35 pm
ONT
-
LHR
18h 00m
1 stop
$704Delta
Tue, May 12 - Tue, Jun 2
KLM Logo
10:55 am - 4:17 pm
LHR
-
ONT
13h 22m
1 stop
KLM Logo
1:29 pm - 11:00 am
ONT
-
LHR
13h 31m
1 stop
$705KLM
Mon, Sep 7 - Mon, Sep 14
British Airways Logo
8:55 am - 6:47 pm
LHR
-
ONT
17h 52m
1 stop
British Airways Logo
12:35 pm - 12:50 pm
ONT
-
LHR
16h 15m
1 stop
$706British Airways
Mon, Sep 7 - Mon, Sep 14
Virgin Atlantic Logo
12:25 pm - 10:44 pm
LHR
-
ONT
42h 19m
2 stops
Virgin Atlantic Logo
12:00 pm - 1:15 pm
ONT
-
LHR
17h 15m
1 stop
$708Virgin Atlantic
Thu, May 28 - Thu, Jun 4
Virgin Atlantic Logo
6:30 am - 4:17 pm
LHR
-
ONT
17h 47m
2 stops
Virgin Atlantic Logo
1:35 pm - 2:00 pm
ONT
-
LHR
16h 25m
1 stop
$709Virgin Atlantic
Fri, May 29 - Fri, Jun 5
Delta Logo
8:40 am - 10:34 pm
LHR
-
ONT
21h 54m
2 stops
Delta Logo
1:35 pm - 12:10 pm
ONT
-
LHR
14h 35m
1 stop
$713Delta
Tue, Jul 21 - Mon, Aug 3
American Airlines Logo
8:15 am - 10:34 pm
LHR
-
ONT
22h 19m
2 stops
American Airlines Logo
12:39 pm - 2:20 pm
ONT
-
LHR
17h 41m
2 stops
$715American Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Ontario flights

Get data-powered insights and trends into flights from Heathrow to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London Heathrow Airport to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Ontario departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Ontario is February, where tickets cost $526 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $895 and $803 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Ontario, you should book around 2 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

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Good to know

Low seasonJanuary
Cheapest flight$494
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from London Heathrow Airport to Ontario

When to book flights from Heathrow to Ontario

Are your dates flexible? Find out the best times to travel from Heathrow to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Ontario flights

  • What is the cheapest flight from London Heathrow Airport to Ontario?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Ontario was $494 for a one-way ticket and $672 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Ontario?

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Ontario.

  • Which airports will I be using when flying from London Heathrow Airport to Ontario?

    London Heathrow Airport airport is called London Heathrow and the only airport in Ontario is Ontario.

  • Which aircraft models fly most regularly from London Heathrow Airport to Ontario?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from London Heathrow Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Heathrow to Ontario

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Ontario (ONT)