Cheapest return flights from Montreal to Keflavik in December from $746

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
04 Dec - 11 Dec British Airways
11 Dec - 18 Dec Porter Airlines (Canada) Ltd
12 Dec - 19 Dec Porter Airlines (Canada) Ltd
13 Dec - 20 Dec Porter Airlines (Canada) Ltd
16 Dec - 23 Dec Porter Airlines (Canada) Ltd
14 Dec - 21 Dec Porter Airlines (Canada) Ltd
15 Dec - 22 Dec Porter Airlines (Canada) Ltd
09 Dec - 16 Dec WestJet
08 Dec - 15 Dec Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
25 Dec - 01 Jan Porter Airlines (Canada) Ltd
29 Dec - 05 Jan Porter Airlines (Canada) Ltd
28 Dec - 04 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 Jan Porter Airlines (Canada) Ltd
27 Dec - 03 Jan Porter Airlines (Canada) Ltd
26 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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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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