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

Return flights

28 Sep - 09 Oct	Hainan Airlines
24 Sep - 01 Oct	Hainan Airlines
26 Sep - 13 Oct	Turkish Airlines
17 Sep - 27 Sep	Qatar Airways
24 Sep - 05 Oct	Emirates
25 Sep - 14 Oct	Qatar Airways
26 Sep - 14 Oct	Qatar Airways
30 Sep - 05 Oct	Emirates
21 Sep - 28 Sep	Singapore Airlines
28 Sep - 07 Oct	Turkish Airlines
19 Sep - 30 Sep	Qatar Airways
25 Sep - 12 Oct	Singapore Airlines
17 Sep - 24 Sep	Emirates
26 Sep - 12 Oct	Singapore Airlines

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

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 Auckland to Istanbul in September from $1422

Return flights