AirHint found the following cheapest one-way flights from Denver (DEN) to Cartagena (CTG) in December 2025 (see full year).
One-Way flights
| 14 Dec | Frontier Airlines | ||
| 16 Dec | Copa | ||
| 17 Dec | Copa | ||
| 19 Dec | Copa | ||
| 20 Dec | Delta |
Also check the deals for return flights from Denver to Cartagena in December.
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