AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Zurich (ZRH) in December 2025 (see full year).
Return flights
| 21 Dec - 10 Jan | Icelandair | ||
| 18 Dec - 10 Jan | Frontier Airlines | ||
| 20 Dec - 10 Jan | Frontier Airlines | ||
| 19 Dec - 10 Jan | Frontier Airlines |
Also check the deals for one-way flights from Raleigh-durham to Zurich in December.
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