Cheapest return flights from Montreal to Keflavik in October from $755

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 October 2025 (see full year).

Return flights

13 Oct - 20 Oct SWISS
20 Oct - 27 Oct SWISS
06 Oct - 13 Oct SWISS
29 Oct - 05 Nov WestJet
17 Oct - 24 Oct WestJet
14 Oct - 21 Oct WestJet
21 Oct - 28 Oct WestJet
18 Oct - 25 Oct WestJet
27 Oct - 03 Nov WestJet
28 Oct - 04 Nov WestJet
01 Oct - 08 Oct WestJet
25 Oct - 01 Nov WestJet
11 Oct - 18 Oct Austrian Airlines
07 Oct - 14 Oct Air France
26 Oct - 02 Nov WestJet
30 Oct - 06 Nov British Airways

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

Skyscanner

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik