AirHint found the following cheapest return flights from Kolkata (CCU) to Zurich (ZRH) in July 2025 (see full year).

Return flights

21 Jul - 05 Aug	SWISS
24 Jul - 11 Aug	Lufthansa
16 Jul - 29 Jul	IndiGo
17 Jul - 04 Aug	IndiGo
09 Jul - 23 Jul	IndiGo
07 Jul - 28 Jul	IndiGo
02 Jul - 16 Jul	IndiGo
22 Jul - 23 Jul	IndiGo
01 Jul - 10 Jul	IndiGo
08 Jul - 15 Jul	IndiGo
10 Jul - 18 Jul	SWISS
12 Jul - 20 Jul	IndiGo
23 Jul - 28 Jul	Air India

Also check the deals for one-way flights from Kolkata to Zurich in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Kolkata to Zurich in July from $525

Return flights