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

Return flights

24 Aug - 01 Sep	IndiGo
22 Aug - 07 Sep	IndiGo
19 Aug - 05 Sep	IndiGo
18 Aug - 04 Sep	IndiGo
18 Aug - 25 Aug	IndiGo
18 Aug - 05 Sep	IndiGo
23 Aug - 07 Sep	IndiGo
01 Aug - 21 Aug	IndiGo
04 Aug - 17 Aug	IndiGo
03 Aug - 16 Aug	IndiGo
02 Aug - 07 Sep	IndiGo

Also check the deals for one-way flights from Kolkata to Copenhagen 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 Copenhagen in August from $699

Return flights