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

Return flights

24 Aug - 07 Sep	Air France
17 Aug - 24 Aug	British Airways
18 Aug - 02 Sep	British Airways
28 Aug - 06 Sep	Air France
17 Aug - 27 Aug	British Airways
16 Aug - 31 Aug	Air France
30 Aug - 06 Sep	Air France
21 Aug - 31 Aug	Air Transat
16 Aug - 28 Aug	KLM
12 Aug - 22 Aug	KLM
10 Aug - 24 Aug	Air France
11 Aug - 24 Aug	Air France
11 Aug - 22 Aug	KLM
11 Aug - 23 Aug	Air Transat

Also check the deals for one-way flights from Basel 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 Basel to Toronto in August from $561

Return flights