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

Return flights

21 Oct - 28 Oct	Scandinavian Airlines
15 Oct - 19 Oct	Air Canada
22 Oct - 29 Oct	British Airways
16 Oct - 23 Oct	Air France
12 Oct - 01 Nov	Air Transat
12 Oct - 19 Oct	Air Canada
15 Oct - 22 Oct	Air Canada
11 Oct - 01 Nov	Air Canada
09 Oct - 16 Oct	Air Canada
24 Oct - 31 Oct	Air Canada
13 Oct - 20 Oct	Air Transat
20 Oct - 15 Nov	SWISS
27 Oct - 27 Nov	KLM
14 Oct - 21 Oct	Air Canada
29 Oct - 05 Nov	Air Canada
06 Oct - 01 Nov	Air Canada
28 Oct - 04 Nov	British Airways
26 Oct - 02 Nov	Air Canada
30 Oct - 06 Nov	Porter Airlines (Canada) Ltd
31 Oct - 07 Nov	Porter Airlines (Canada) Ltd

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

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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Cheapest return flights from Montreal to Copenhagen in October from 514€

Return flights