Cheapest return flights from Montreal to Keflavik in September from $636

AirHint found the following cheapest return flights from Montreal (YUL) to Keflavik (KEF) in September 2026 (see full year).

Return flights

19 Sep - 02 Oct Air Canada direct
15 Sep - 07 Oct Air Canada direct
19 Sep - 07 Oct Air Canada direct
15 Sep - 02 Oct Air Canada direct
12 Sep - 04 Oct Air Canada direct
24 Sep - 02 Oct Air Canada direct
22 Sep - 04 Oct Air Canada direct
17 Sep - 02 Oct Air Canada direct
17 Sep - 07 Oct Air Canada direct
26 Sep - 04 Oct Air Canada direct
11 Sep - 18 Sep Air Canada
12 Sep - 19 Sep Air Canada
15 Sep - 22 Sep Air Canada
16 Sep - 23 Sep Air Canada
17 Sep - 24 Sep Air Canada
18 Sep - 25 Sep Air Canada
19 Sep - 26 Sep Air Canada
20 Sep - 27 Sep Air Canada
22 Sep - 29 Sep Air Canada
23 Sep - 30 Sep Air Canada

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

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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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