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

Return flights

10 Sep - 16 Sep	Wingo
11 Sep - 16 Sep	Copa
09 Sep - 16 Sep	Copa
11 Sep - 18 Sep	Copa
07 Sep - 13 Sep	Avianca	direct
05 Sep - 12 Sep	Avianca	direct
07 Sep - 11 Sep	Avianca	direct
11 Sep - 16 Sep	Avianca	direct
09 Sep - 16 Sep	Avianca	direct
11 Sep - 18 Sep	Avianca	direct
28 Sep - 05 Oct	Avianca	direct

Also check the deals for one-way flights from Cartagena to San Jose 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 Cartagena to San Jose in September from 217€

Return flights