Cheapest return flights from Nis to Istanbul in September from $175

AirHint found the following cheapest return flights from Nis (INI) to Istanbul (IST) in September 2025 (see full year).

Return flights

27 Sep - 30 Sep Air Serbia direct
23 Sep - 27 Sep Air Serbia direct
13 Sep - 16 Sep Air Serbia direct
16 Sep - 20 Sep Air Serbia direct
20 Sep - 23 Sep Air Serbia direct
06 Sep - 09 Sep Air Serbia direct
09 Sep - 13 Sep Air Serbia direct
20 Sep - 24 Sep Air Serbia
23 Sep - 26 Sep Air Serbia
16 Sep - 19 Sep Air Serbia

Also check the deals for one-way flights from Nis to Istanbul in September.

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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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