AirHint found the following cheapest return flights from Cincinnati (CVG) to St. Thomas (STT) in December 2025 (see full year).
Return flights
| 06 Dec - 13 Dec | Frontier Airlines | ||
| 24 Dec - 30 Dec | Allegiant Air | ||
| 07 Dec - 10 Dec | American Airlines | ||
| 29 Dec - 05 Jan | Frontier Airlines |
Also check the deals for one-way flights from Cincinnati to St. Thomas in December.
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