AirHint found the following cheapest return flights from Toronto (YTZ) to Keflavik (KEF) in August 2026 (see full year).

Return flights

16 Aug - 05 Sep	Air Canada
24 Aug - 19 Sep	Air Canada
25 Aug - 19 Sep	Air Canada
21 Aug - 01 Sep	SWISS
30 Aug - 12 Sep	United
10 Aug - 18 Aug	Porter Airlines (Canada) Ltd
10 Aug - 19 Aug	Porter Airlines (Canada) Ltd
07 Aug - 17 Aug	Porter Airlines (Canada) Ltd
11 Aug - 14 Aug	Porter Airlines (Canada) Ltd
07 Aug - 14 Aug	Air Canada
06 Aug - 14 Aug	Porter Airlines (Canada) Ltd
06 Aug - 11 Aug	Air Canada
05 Aug - 13 Aug	Air Canada

Also check the deals for one-way flights from Toronto to Keflavik 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 Keflavik in August from $623

Return flights