AirHint found the following cheapest return flights from Sao Paulo (GRU) to Cartagena (CTG) in September 2025 (see full year).

Return flights

27 Sep - 29 Sep	Copa
25 Sep - 29 Sep	Copa
26 Sep - 29 Sep	Copa
19 Sep - 23 Sep	Copa
24 Sep - 29 Sep	Copa
18 Sep - 25 Sep	Copa
21 Sep - 29 Sep	Copa
21 Sep - 23 Sep	Copa
18 Sep - 24 Sep	Copa
19 Sep - 25 Sep	Copa
30 Sep - 03 Oct	Copa
21 Sep - 01 Oct	Copa
29 Sep - 04 Oct	Copa
28 Sep - 06 Oct	Copa
18 Sep - 01 Oct	Copa
22 Sep - 07 Oct	Copa
24 Sep - 01 Oct	Copa
28 Sep - 07 Oct	Avianca
28 Sep - 04 Oct	Copa
29 Sep - 08 Oct	Copa

Also check the deals for one-way flights from Sao Paulo to Cartagena in September.

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 Sao Paulo to Cartagena in September from $319

Return flights