AirHint found the following cheapest return flights from Kolkata (CCU) to Vienna (VIE) in August 2025 (see full year).

Return flights

08 Aug - 24 Aug	IndiGo
13 Aug - 21 Aug	IndiGo
13 Aug - 17 Aug	IndiGo
19 Aug - 07 Sep	IndiGo
14 Aug - 22 Aug	IndiGo
19 Aug - 06 Sep	IndiGo
17 Aug - 06 Sep	IndiGo
31 Aug - 14 Sep	IndiGo
14 Aug - 24 Aug	Qatar Airways
18 Aug - 05 Sep	Emirates
13 Aug - 24 Aug	Emirates

Also check the deals for one-way flights from Kolkata to Vienna in August.

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 Vienna in August from 530€

Return flights