Cheapest return flights from Toronto to Keflavik in September from $464

AirHint found the following cheapest return flights from Toronto (YTZ) to Keflavik (KEF) in September 2025 (see full year).

Return flights

20 Sep - 11 Oct Porter Airlines (Canada) Ltd
27 Sep - 06 Oct Porter Airlines (Canada) Ltd
28 Sep - 18 Oct Porter Airlines (Canada) Ltd
20 Sep - 26 Sep Porter Airlines (Canada) Ltd
20 Sep - 24 Sep Porter Airlines (Canada) Ltd
24 Sep - 03 Oct Porter Airlines (Canada) Ltd
29 Sep - 08 Oct Porter Airlines (Canada) Ltd
22 Sep - 27 Sep Porter Airlines (Canada) Ltd
17 Sep - 24 Sep Porter Airlines (Canada) Ltd
15 Sep - 19 Sep Porter Airlines (Canada) Ltd
21 Sep - 28 Sep Porter Airlines (Canada) Ltd
16 Sep - 21 Sep Porter Airlines (Canada) Ltd
19 Sep - 26 Sep Porter Airlines (Canada) Ltd
11 Sep - 18 Sep Air Canada
14 Sep - 18 Sep Porter Airlines (Canada) Ltd
29 Sep - 03 Oct Porter Airlines (Canada) Ltd
23 Sep - 03 Oct Porter Airlines (Canada) Ltd
08 Sep - 04 Oct Porter Airlines (Canada) Ltd
30 Sep - 06 Oct Porter Airlines (Canada) Ltd
26 Sep - 03 Oct Porter Airlines (Canada) Ltd

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

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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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