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

Return flights

09 Oct - 16 Oct	Air Transat
14 Oct - 21 Oct	Air Transat
24 Oct - 31 Oct	Air Transat
02 Oct - 09 Oct	Air Transat
13 Oct - 20 Oct	Air Transat
06 Oct - 13 Oct	Porter Airlines (Canada) Ltd
28 Oct - 04 Nov	Air Transat
21 Oct - 28 Oct	Porter Airlines (Canada) Ltd
11 Oct - 18 Oct	Air Transat
16 Oct - 23 Oct	Air Transat
30 Oct - 06 Nov	Air Transat
04 Oct - 11 Oct	Air Transat
26 Oct - 02 Nov	Air Transat
25 Oct - 01 Nov	Air Transat
29 Oct - 05 Nov	Air Transat
27 Oct - 03 Nov	British Airways
31 Oct - 07 Nov	FrenchBee

Also check the deals for one-way flights from Montreal to Cologne 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 Cologne in October from $640

Return flights