AirHint found the following cheapest one-way flights from Boston (BOS) to Zurich (ZRH) in December 2025 (see full year).
One-Way flights
| 04 Dec | Icelandair | ||
| 03 Dec | ITA Airways | ||
| 12 Dec | Spirit Airlines | ||
| 13 Dec | Air France | ||
| 29 Dec | Lufthansa | ||
| 25 Dec | LEVEL | ||
| 17 Dec | jetBlue | ||
| 29 Dec | United | direct | |
| 19 Dec | Spirit Airlines | ||
| 25 Dec | SWISS | direct |
Also check the deals for return flights from Boston to Zurich in December.
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