Cheapest return flights from Montreal to Keflavik in December from $1520

AirHint found the following cheapest return flights from Montreal (YUL) to Keflavik (KEF) in December 2025 (see full year).

Return flights

31 Dec - 07 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 Jan WestJet
22 Dec - 01 Jan Porter Airlines (Canada) Ltd
25 Dec - 01 Jan Porter Airlines (Canada) Ltd
23 Dec - 30 Dec SWISS
29 Dec - 05 Jan Porter Airlines (Canada) Ltd
24 Dec - 31 Dec Porter Airlines (Canada) Ltd
28 Dec - 04 Jan Porter Airlines (Canada) Ltd
27 Dec - 03 Jan Porter Airlines (Canada) Ltd
25 Dec - 05 Jan Porter Airlines (Canada) Ltd
30 Dec - 02 Jan Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Keflavik in December.

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