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
$ 746
04 Dec
- 11 Dec
British Airways
$ 784
11 Dec
- 18 Dec
Porter Airlines (Canada) Ltd
$ 784
12 Dec
- 19 Dec
Porter Airlines (Canada) Ltd
$ 784
13 Dec
- 20 Dec
Porter Airlines (Canada) Ltd
$ 798
16 Dec
- 23 Dec
Porter Airlines (Canada) Ltd
$ 798
14 Dec
- 21 Dec
Porter Airlines (Canada) Ltd
$ 838
15 Dec
- 22 Dec
Porter Airlines (Canada) Ltd
$ 838
09 Dec
- 16 Dec
WestJet
$ 846
08 Dec
- 15 Dec
Porter Airlines (Canada) Ltd
$ 852
31 Dec
- 07 Jan
Porter Airlines (Canada) Ltd
$ 903
25 Dec
- 01 Jan
Porter Airlines (Canada) Ltd
$ 948
29 Dec
- 05 Jan
Porter Airlines (Canada) Ltd
$ 948
28 Dec
- 04 Jan
Porter Airlines (Canada) Ltd
$ 964
30 Dec
- 06 Jan
Porter Airlines (Canada) Ltd
$ 979
27 Dec
- 03 Jan
Porter Airlines (Canada) Ltd
$ 1231
26 Dec
- 02 Jan
Porter Airlines (Canada) Ltd
$ 1458
Also check the deals for one-way flights from Montreal to Keflavik in December .
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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