Cheapest return flights from Montreal to Keflavik in December from $712

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

Return flights

10 Dec - 17 Dec Porter Airlines (Canada) Ltd
05 Dec - 27 Dec Porter Airlines (Canada) Ltd
01 Dec - 08 Dec Porter Airlines (Canada) Ltd
04 Dec - 08 Dec WestJet
31 Dec - 24 Jan Air Canada
06 Dec - 13 Dec Porter Airlines (Canada) Ltd
04 Dec - 11 Dec Porter Airlines (Canada) Ltd
07 Dec - 14 Dec Porter Airlines (Canada) Ltd
29 Dec - 24 Jan Porter Airlines (Canada) Ltd
30 Dec - 24 Jan Porter Airlines (Canada) Ltd
02 Dec - 09 Dec Porter Airlines (Canada) Ltd
08 Dec - 15 Dec Porter Airlines (Canada) Ltd
14 Dec - 21 Dec Porter Airlines (Canada) Ltd
29 Dec - 07 Jan Porter Airlines (Canada) Ltd
16 Dec - 10 Jan Porter Airlines (Canada) Ltd
29 Dec - 05 Jan Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 Jan Porter Airlines (Canada) Ltd
26 Dec - 05 Jan Porter Airlines (Canada) Ltd
17 Dec - 07 Jan Porter Airlines (Canada) Ltd

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

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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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