Cheapest return flights from Boston to Cartagena in October from $329

AirHint found the following cheapest return flights from Boston (BOS) to Cartagena (CTG) in October 2025 (see full year).

Return flights

15 Oct - 19 Oct Spirit Airlines

Also check the deals for one-way flights from Boston to Cartagena in October.

Skyscanner

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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