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

Return flights

24 Aug - 13 Sep	TAP
27 Aug - 07 Sep	TAP
17 Aug - 07 Sep	TAP
26 Aug - 19 Sep	TAP
14 Aug - 05 Sep	TAP
21 Aug - 12 Sep	TAP
28 Aug - 07 Sep	TAP
13 Aug - 27 Aug	TAP
13 Aug - 20 Aug	TAP
19 Aug - 24 Aug	TAP
10 Aug - 25 Aug	TAP
14 Aug - 30 Aug	TAP
10 Aug - 31 Aug	TAP
13 Aug - 17 Aug	TAP
19 Aug - 29 Aug	Finnair
01 Aug - 22 Aug	Finnair
03 Aug - 14 Aug	Finnair
28 Aug - 19 Sep	British Airways
26 Aug - 19 Sep	Air Canada	direct
24 Aug - 13 Sep	Air Canada	direct

Also check the deals for one-way flights from Toronto to London 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 Toronto to London in August from $576

Return flights