Cheapest return flights from Toronto to Keflavik in September from $581

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

Return flights

25 Sep - 29 Sep Porter Airlines (Canada) Ltd
01 Sep - 08 Sep Porter Airlines (Canada) Ltd
04 Sep - 12 Sep Air Canada
13 Sep - 17 Sep Air Canada
30 Sep - 04 Oct Porter Airlines (Canada) Ltd
10 Sep - 20 Sep Porter Airlines (Canada) Ltd
25 Sep - 05 Oct Porter Airlines (Canada) Ltd
27 Sep - 04 Oct Porter Airlines (Canada) Ltd
11 Sep - 20 Sep Porter Airlines (Canada) Ltd
28 Sep - 02 Oct Porter Airlines (Canada) Ltd
11 Sep - 18 Sep Porter Airlines (Canada) Ltd
01 Sep - 11 Sep Porter Airlines (Canada) Ltd
25 Sep - 30 Sep Air Canada
06 Sep - 14 Sep Air Canada
27 Sep - 03 Oct Air Canada
29 Sep - 02 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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