AirHint found the following cheapest return flights from London (LHR) to Toronto (YYZ) in August 2026 (see full year).

Return flights

31 Aug - 16 Sep	Icelandair
31 Aug - 30 Sep	Icelandair
31 Aug - 23 Sep	Icelandair
31 Aug - 09 Sep	Icelandair
25 Aug - 10 Sep	Icelandair
30 Aug - 10 Sep	Icelandair
26 Aug - 14 Sep	Icelandair
30 Aug - 15 Sep	Icelandair
31 Aug - 12 Sep	Icelandair
24 Aug - 07 Sep	Icelandair
26 Aug - 31 Aug	Finnair
24 Aug - 31 Aug	Icelandair
27 Aug - 27 Aug	Icelandair
28 Aug - 31 Aug	Scandinavian Airlines
18 Aug - 27 Aug	British Airways
22 Aug - 27 Aug	Aer Lingus
20 Aug - 27 Aug	Icelandair
13 Aug - 26 Aug	British Airways
11 Aug - 19 Aug	British Airways
13 Aug - 19 Aug	British Airways

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

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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Cheapest return flights from London to Toronto in August from 435€

Return flights