AirHint found the following cheapest return flights from Las Vegas (LAS) to Prague (PRG) in December 2025 (see full year).
Return flights
| 04 Dec - 27 Dec | Hawaiian Airlines | ||
| 12 Dec - 15 Dec | Frontier Airlines | ||
| 14 Dec - 03 Jan | Spirit Airlines | ||
| 20 Dec - 28 Dec | jetBlue |
Also check the deals for one-way flights from Las Vegas to Prague in December.
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