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

Return flights

26 Aug - 04 Sep	easyJet
27 Aug - 04 Sep	easyJet
17 Aug - 26 Aug	easyJet
22 Aug - 31 Aug	easyJet
13 Aug - 30 Aug	easyJet
18 Aug - 26 Aug	easyJet
23 Aug - 31 Aug	easyJet
30 Aug - 04 Sep	Air Transat
26 Aug - 10 Sep	Aer Lingus
30 Aug - 04 Sep	Air Transat	direct
29 Aug - 19 Sep	Air Transat	direct
28 Aug - 19 Sep	Air Transat	direct
26 Aug - 10 Sep	Air Transat	direct
27 Aug - 04 Sep	Air Transat	direct
31 Aug - 14 Sep	Air Transat	direct
22 Aug - 26 Aug	Air Transat
09 Aug - 16 Aug	Aer Lingus
08 Aug - 16 Aug	Aer Lingus
07 Aug - 12 Aug	Air Canada
07 Aug - 13 Aug	Air Canada

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 $273

Return flights