Cheapest return YYZ–KEF flights, May

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

Return flights

29 May - 04 Jun Air Canada
18 May - 26 May WestJet
21 May - 26 May Icelandair direct
28 May - 01 Jun Icelandair direct
28 May - 07 Jun Icelandair direct
26 May - 01 Jun Air Canada
15 May - 25 May Air Canada
24 May - 29 May Air Canada
26 May - 01 Jun Icelandair direct
13 May - 25 May Air Transat
14 May - 20 May Air Canada
14 May - 18 May Air Canada
11 May - 15 May Icelandair direct
15 May - 18 May Air Transat
14 May - 20 May Icelandair direct

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

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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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