Cheapest return flights from Montreal to Keflavik in December from $690

Best time to book flights for Montreal (YUL) to Keflavik (KEF) flights at AirHint

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

Return flights

03 Dec - 10 Dec British Airways
10 Dec - 17 Dec WestJet
14 Dec - 21 Dec WestJet
01 Dec - 08 Dec WestJet
05 Dec - 12 Dec WestJet
11 Dec - 18 Dec WestJet
08 Dec - 15 Dec WestJet
15 Dec - 22 Dec WestJet
04 Dec - 11 Dec Porter Airlines (Canada) Ltd
12 Dec - 19 Dec Porter Airlines (Canada) Ltd
29 Dec - 05 Jan Porter Airlines (Canada) Ltd
28 Dec - 04 Jan Porter Airlines (Canada) Ltd
25 Dec - 01 Jan Porter Airlines (Canada) Ltd
26 Dec - 02 Jan WestJet
27 Dec - 03 Jan Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 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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