Cheapest return flights from Montreal to Helsinki in October from $593

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

Return flights

21 Oct - 28 Oct British Airways
28 Oct - 04 Nov British Airways
20 Oct - 27 Oct British Airways
02 Oct - 09 Oct Air Transat
24 Oct - 31 Oct British Airways
13 Oct - 20 Oct Air France
23 Oct - 30 Oct Air France
14 Oct - 21 Oct Air France
27 Oct - 03 Nov Air France
29 Oct - 05 Nov Air France
25 Oct - 01 Nov Scandinavian Airlines
15 Oct - 22 Oct Air Canada
04 Oct - 25 Oct Air France
03 Oct - 25 Oct Air France
30 Oct - 06 Nov Air Canada
25 Oct - 08 Nov Air France
31 Oct - 07 Nov Air Canada
26 Oct - 02 Nov Porter Airlines (Canada) Ltd
31 Oct - 09 Nov Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Helsinki 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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