AirHint found the following cheapest return flights from Atlanta (ATL) to Cartagena (CTG) in July 2025 (see full year).

Return flights

31 Jul - 07 Aug	Frontier Airlines
30 Jul - 06 Aug	Frontier Airlines
27 Jul - 16 Aug	Spirit Airlines
29 Jul - 16 Aug	Spirit Airlines
29 Jul - 31 Jul	Spirit Airlines
31 Jul - 16 Aug	Spirit Airlines
26 Jul - 16 Aug	Spirit Airlines
30 Jul - 04 Aug	Frontier Airlines
27 Jul - 17 Aug	Spirit Airlines
29 Jul - 17 Aug	Spirit Airlines
31 Jul - 17 Aug	Spirit Airlines

Also check the deals for one-way flights from Atlanta to Cartagena in July.

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 Atlanta to Cartagena in July from 370€

Return flights