AirHint found the following cheapest return flights from Cologne (CGN) to Nis (INI) in July 2025 (see full year).

Return flights

15 Jul - 19 Jul	Ryanair
22 Jul - 26 Jul	Ryanair
08 Jul - 22 Jul	Eurowings
29 Jul - 16 Aug	Ryanair
05 Jul - 12 Jul	Ryanair
17 Jul - 21 Jul	SWISS
04 Jul - 06 Jul	Pegasus Airlines
06 Jul - 13 Jul	Ryanair
22 Jul - 26 Jul	Air Serbia	direct
11 Jul - 13 Jul	Ryanair
05 Jul - 06 Jul	Air Serbia
19 Jul - 02 Aug	Turkish Airlines
28 Jul - 15 Aug	Lufthansa

Also check the deals for one-way flights from Cologne to Nis 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 Cologne to Nis in July from $322

Return flights