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

Return flights

05 Sep - 28 Sep	Copa
22 Sep - 28 Sep	Copa
10 Sep - 18 Sep	Copa
10 Sep - 30 Sep	Copa
24 Sep - 30 Sep	Copa
11 Sep - 16 Sep	Copa
01 Sep - 05 Sep	Copa
01 Sep - 03 Sep	Copa
19 Sep - 26 Sep	Copa
10 Sep - 17 Sep	Copa
24 Sep - 15 Oct	Copa
26 Sep - 01 Oct	Copa
25 Sep - 02 Oct	Copa
30 Sep - 05 Oct	Avianca
30 Sep - 07 Oct	Avianca
10 Sep - 15 Oct	Avianca
28 Sep - 05 Oct	Avianca

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 $330

Return flights