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

Return flights

08 Sep - 13 Sep	China Southern
03 Sep - 02 Oct	China Southern
10 Sep - 20 Sep	China Southern
24 Sep - 28 Sep	IndiGo
23 Sep - 28 Sep	IndiGo
04 Sep - 07 Sep	Sichuan Airlines
24 Sep - 30 Sep	Emirates
18 Sep - 23 Sep	Emirates
09 Sep - 29 Sep	Emirates
13 Sep - 21 Sep	Emirates
03 Sep - 10 Sep	Emirates
25 Sep - 13 Oct	Emirates
20 Sep - 01 Oct	Emirates
28 Sep - 08 Oct	IndiGo
20 Sep - 04 Oct	Emirates
28 Sep - 13 Oct	Emirates
26 Sep - 06 Oct	IndiGo
25 Sep - 06 Oct	IndiGo
26 Sep - 13 Oct	Emirates
26 Sep - 03 Oct	Emirates

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Istanbul in September from 480€

Return flights