Cheapest return flights from Montreal to Keflavik in December from 803€

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

01 Dec - 08 Dec Porter Airlines (Canada) Ltd
05 Dec - 12 Dec Porter Airlines (Canada) Ltd
11 Dec - 18 Dec Porter Airlines (Canada) Ltd
29 Dec - 05 Jan WestJet
04 Dec - 11 Dec British Airways
26 Dec - 02 Jan WestJet
06 Dec - 13 Dec British Airways
13 Dec - 20 Dec British Airways
25 Dec - 01 Jan British Airways
20 Dec - 27 Dec British Airways
27 Dec - 03 Jan British Airways

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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