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

Return flights

22 Oct - 29 Oct	Avianca
01 Oct - 08 Oct	Avianca
26 Oct - 02 Nov	Avianca
27 Oct - 03 Nov	Avianca
29 Oct - 05 Nov	Avianca
20 Oct - 27 Oct	Avianca
19 Oct - 26 Oct	Avianca
01 Oct - 10 Oct	Avianca
08 Oct - 15 Oct	Avianca
15 Oct - 22 Oct	Avianca
31 Oct - 05 Nov	Avianca
31 Oct - 07 Nov	Avianca
29 Oct - 05 Nov	Air Transat	direct
13 Oct - 21 Oct	Copa
23 Oct - 30 Oct	Porter Airlines (Canada) Ltd
05 Oct - 12 Oct	Copa
25 Oct - 01 Nov	Air Transat
30 Oct - 06 Nov	Porter Airlines (Canada) Ltd
23 Oct - 05 Nov	Porter Airlines (Canada) Ltd
23 Oct - 07 Nov	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Cartagena 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 Cartagena in October from 312€

Return flights