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

Return flights

19 Jul - 23 Jul	Air Canada
27 Jul - 31 Jul	Air Canada
16 Jul - 20 Jul	Air Canada
14 Jul - 19 Jul	Air Canada
30 Jul - 06 Aug	Air Canada
28 Jul - 05 Aug	Air Canada
30 Jul - 11 Aug	Air Canada
30 Jul - 03 Aug	Air Canada
30 Jul - 04 Aug	Air Canada
29 Jul - 05 Aug	Air Canada
31 Jul - 05 Aug	Air Canada
30 Jul - 05 Aug	Air Canada
26 Jul - 01 Aug	Air Canada
28 Jul - 01 Aug	Air Canada
15 Jul - 16 Jul	Flair Airlines
24 Jul - 31 Jul	Icelandair	direct
23 Jul - 30 Jul	Icelandair	direct
25 Jul - 30 Jul	Icelandair	direct
27 Jul - 30 Jul	Icelandair	direct
23 Jul - 27 Jul	Icelandair	direct

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

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 July from 532€

Return flights