Cheapest return flights from London to Toronto in September from $461

Best time to book flights for London (LHR) to Toronto (YYZ) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Toronto (YYZ) in September 2025 (see full year).

Return flights

17 Sep - 08 Oct Lufthansa
16 Sep - 23 Sep SWISS
22 Sep - 30 Sep Virgin Atlantic
17 Sep - 24 Sep Virgin Atlantic
10 Sep - 17 Sep British Airways direct
10 Sep - 23 Sep British Airways direct
08 Sep - 16 Sep British Airways direct
02 Sep - 16 Sep British Airways direct
22 Sep - 29 Sep British Airways direct
22 Sep - 30 Sep British Airways direct
16 Sep - 23 Sep British Airways direct
24 Sep - 01 Oct Lufthansa
17 Sep - 08 Oct British Airways direct
24 Sep - 01 Oct British Airways direct
24 Sep - 06 Oct Lufthansa
24 Sep - 06 Oct British Airways direct
27 Sep - 02 Oct British Airways direct
28 Sep - 15 Oct British Airways direct
08 Sep - 10 Oct British Airways direct
25 Sep - 30 Oct Lufthansa

Also check the deals for one-way flights from London to Toronto in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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