AirHint found the following cheapest return flights from Boston (BOS) to Zurich (ZRH) in September 2026 (see full year).
Return flights
| 10 Sep - 19 Sep | Condor | ||
| 15 Sep - 28 Sep | Condor | ||
| 28 Sep - 12 Oct | Scandinavian Airlines | ||
| 15 Sep - 28 Sep | SWISS | direct | |
| 02 Sep - 12 Sep | SWISS | direct | |
| 28 Sep - 12 Oct | SWISS | direct | |
| 10 Sep - 19 Sep | SWISS | direct |
Also check the deals for one-way flights from Boston to Zurich in September.
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