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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: 07/10/21
16:05 LON
23:48 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
United Airlines
Return flight: 07/22/21
08:00 ONT
06:55 LON
Ontario-CA
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
1 Stopover
United Airlines
$485
Check
Outbound flight: 07/10/21
10:15 LON
20:47 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
KLM
Return flight: 07/22/21
12:45 ONT
10:10 LON
Ontario-CA
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
1 Stopover
KLM
$802
Check
Outbound flight: 02/10/21
09:20 LON
17:32 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
United Airlines
$2,119
Offers unavailable
Outbound flight: 02/10/21
09:20 LON
17:32 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
United Airlines
$2,119
Offers unavailable
Outbound flight: 02/10/21
13:35 LON
21:25 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
United Airlines
$2,177
Offers unavailable
Outbound flight: 02/10/21
13:35 LON
21:25 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
United Airlines
$2,177
Offers unavailable
Outbound flight: 02/10/21
11:00 LON
22:09 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
Delta Air Lines
$2,214
Offers unavailable
Outbound flight: 02/10/21
15:45 LON
23:19 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
American Airlines
$2,240
Offers unavailable
Outbound flight: 02/10/21
13:35 LON
21:25 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
Lufthansa
$2,250
Offers unavailable
Outbound flight: 02/10/21
13:35 LON
21:25 ONT
London, all Airports (LCY, LGW, LHR, LTN, STN, SEN)
Ontario-CA
1 Stopover
Lufthansa
$2,250
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 London to Ontario

Favorite airline: United Airlines
100 % of flights booked on the route from London to Ontario are booked with United Airlines, Lufthansa and Icelandair.
United Airlines
50 %
Lufthansa
33 %
Icelandair
17 %
Favourite connection: via Houston - George Bush
The most popular route is via Houston - George Bush and is booked by 54 % of all travelers.
Route
bookings
1 stopover Houston - George Bush Intercontinental Airport, TX
21h 45min, from $514
54 %
1 stopover San Francisco International Airport, CA
14h 13min, from $596
29 %
2 stopovers Reykjavik-Keflavik International Seattle-Tacoma International Airport, WA
18h 28min, from $1,652
17 %
Flight information London - Ontario
Alternative flight routes
Cheap direct flights
Flight details London - Ontario
  • Distance: 8730 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.