AirHint found the following cheapest return flights from San Francisco (SFO) to Cartagena (CTG) in December 2025 (see full year).
Return flights
| 06 Dec - 12 Jan | American Airlines | ||
| 16 Dec - 23 Dec | Frontier Airlines | ||
| 17 Dec - 04 Jan | jetBlue | ||
| 18 Dec - 04 Jan | American Airlines |
Also check the deals for one-way flights from San Francisco to Cartagena in December.
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