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

Return flights

09 Sep - 16 Sep	Icelandair
13 Sep - 27 Sep	Icelandair
09 Sep - 20 Sep	Icelandair
18 Sep - 30 Sep	Icelandair
04 Sep - 07 Sep	Icelandair
11 Sep - 18 Sep	Icelandair
13 Sep - 20 Sep	Icelandair
02 Sep - 09 Sep	British Airways
03 Sep - 09 Sep	British Airways
08 Sep - 10 Oct	British Airways
02 Sep - 02 Oct	British Airways
17 Sep - 29 Sep	KLM

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

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 Stockholm to Toronto in September from 346€

Return flights