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

Return flights

29 Sep - 28 Oct	Emirates
11 Sep - 24 Sep	China Airlines
03 Sep - 10 Sep	HK Express
23 Sep - 29 Sep	Cebu Pacific
03 Sep - 15 Sep	HK Express
10 Sep - 15 Sep	HK Express
08 Sep - 12 Sep	HK Express
17 Sep - 24 Sep	HK Express
16 Sep - 22 Sep	China Airlines
24 Sep - 29 Sep	Cebu Pacific
18 Sep - 23 Sep	AirAsia X
15 Sep - 02 Oct	Emirates
28 Sep - 05 Oct	Emirates
14 Sep - 30 Oct	Emirates
28 Sep - 01 Oct	Emirates
24 Sep - 01 Oct	Emirates
29 Sep - 06 Oct	Emirates
28 Sep - 07 Oct	Emirates
22 Sep - 02 Oct	Etihad Airways
23 Sep - 06 Oct	Emirates

Also check the deals for one-way flights from Taipei 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 Taipei to Istanbul in September from $498

Return flights