Cheapest return flights from Montreal to Keflavik in October from $557

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

Return flights

03 Oct - 11 Oct Porter Airlines (Canada) Ltd
12 Oct - 19 Oct Porter Airlines (Canada) Ltd
15 Oct - 22 Oct Porter Airlines (Canada) Ltd
02 Oct - 09 Oct WestJet
14 Oct - 21 Oct WestJet
07 Oct - 14 Oct WestJet
06 Oct - 13 Oct Porter Airlines (Canada) Ltd
12 Oct - 15 Oct Porter Airlines (Canada) Ltd
11 Oct - 19 Oct Porter Airlines (Canada) Ltd
08 Oct - 13 Oct WestJet
30 Oct - 06 Nov Porter Airlines (Canada) Ltd
25 Oct - 01 Nov Porter Airlines (Canada) Ltd
26 Oct - 02 Nov Porter Airlines (Canada) Ltd
28 Oct - 04 Nov Porter Airlines (Canada) Ltd
27 Oct - 03 Nov Porter Airlines (Canada) Ltd
29 Oct - 05 Nov Porter Airlines (Canada) Ltd
31 Oct - 07 Nov Porter Airlines (Canada) Ltd
06 Oct - 18 Nov Lufthansa

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

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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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