AirHint found the following cheapest return flights from Kolkata (CCU) to Zurich (ZRH) in September 2026 (see full year).
Return flights
| 18 Sep - 26 Sep | SWISS | ||
| 06 Sep - 16 Sep | SWISS | ||
| 09 Sep - 16 Sep | SWISS | ||
| 11 Sep - 19 Sep | SWISS |
Also check the deals for one-way flights from Kolkata to Zurich in September.
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