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

Return flights

17 Sep - 01 Oct	Avianca
30 Sep - 23 Oct	Avianca
24 Sep - 01 Oct	Avianca
04 Sep - 08 Sep	Copa
08 Sep - 15 Sep	Copa
03 Sep - 08 Sep	Copa
13 Sep - 14 Sep	Copa
05 Sep - 07 Sep	Copa
01 Sep - 08 Sep	Copa
03 Sep - 28 Sep	Copa
05 Sep - 08 Sep	Copa
13 Sep - 10 Oct	Copa
25 Sep - 28 Sep	Copa
03 Sep - 10 Sep	Delta
17 Sep - 01 Oct	American Airlines	direct

Also check the deals for one-way flights from Miami 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 Miami to Cartagena in September from 162€

Return flights