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

Return flights

30 Aug - 06 Sep	Copa
27 Aug - 10 Sep	Avianca
28 Aug - 04 Sep	Avianca
23 Aug - 30 Aug	Avianca
25 Aug - 03 Sep	Copa
28 Aug - 03 Sep	Avianca
19 Aug - 26 Aug	Avianca
21 Aug - 28 Aug	Copa
26 Aug - 02 Sep	Avianca
29 Aug - 05 Sep	Avianca
20 Aug - 01 Sep	Avianca
27 Aug - 03 Sep	Avianca
22 Aug - 28 Aug	Avianca
29 Aug - 07 Sep	Avianca
22 Aug - 29 Aug	Copa
24 Aug - 31 Aug	Copa
18 Aug - 25 Aug	Arajet
20 Aug - 27 Aug	Avianca
16 Aug - 25 Aug	Avianca
17 Aug - 24 Aug	Copa

Also check the deals for one-way flights from Montreal to Cartagena in August.

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 August from 402€

Return flights