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

Return flights

11 Sep - 21 Sep	Air China
18 Sep - 29 Sep	Cathay Pacific
02 Sep - 10 Sep	Sichuan Airlines
20 Sep - 01 Oct	Emirates
13 Sep - 21 Sep	Emirates
11 Sep - 24 Sep	Emirates
11 Sep - 22 Sep	Emirates
04 Sep - 13 Sep	Emirates
03 Sep - 17 Sep	Emirates
01 Sep - 13 Sep	Emirates
15 Sep - 25 Sep	Emirates
17 Sep - 03 Oct	Emirates
15 Sep - 01 Oct	Emirates
18 Sep - 03 Oct	Emirates
18 Sep - 01 Oct	Emirates
21 Sep - 02 Oct	Emirates
21 Sep - 01 Oct	Emirates
20 Sep - 20 Oct	Emirates
24 Sep - 03 Oct	Emirates
19 Sep - 01 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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Hong Kong to Istanbul in September from 457€

Return flights