Flights from Ontario to London-Heathrow

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Due to the effect of the current situation on air traffic, fewer offers are being submitted. Some offers might now no longer be available.
Outbound flight: 06/01/21
16:15 ONT
09:40 LHR
Ontario-CA
London Heathrow
1 Stopover
United Airlines
$829
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Outbound flight: 06/14/21
09:45 ONT
06:55 LHR
Ontario-CA
London Heathrow
1 Stopover
United Airlines
$1,283
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Outbound flight: 06/14/21
09:45 ONT
06:55 LHR
Ontario-CA
London Heathrow
1 Stopover
United Airlines
$1,289
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Outbound flight: 06/14/21
09:45 ONT
14:10 LHR
Ontario-CA
London Heathrow
1 Stopover
United Airlines
$1,345
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Outbound flight: 11/29/20
10:30 ONT
12:00 LHR
Ontario-CA
London Heathrow
1 Stopover
United Airlines
$424
Offers unavailable
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Ontario to London-Heathrow

Favorite airline: United Airlines
United Airlines is the most popular airline for flights from Ontario to London Heathrow.
United Airlines
50 %
American Airlines
15 %
British Airways
5 %
Favourite connection: via Denver
On this route, flights with a stopover in Denver are the most popular.
Route
bookings
1 stopover Denver International Airport, CO
12h 20min, from $523
45 %
2 stopovers Seattle-Tacoma International Airport, WA Reykjavik-Keflavik International
17h 50min, from $1,492
36 %
1 stopover Phoenix - Sky Harbor International Airport
13h 34min, from $367
18 %
Flight information Ontario - London Heathrow
Alternative flight routes
Cheap direct flights
Flight details Ontario - London Heathrow
  • Distance: 8717 km
Top Flight Routes
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* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.