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

Return flights

25 Sep - 30 Sep	Wizz Air UK
25 Sep - 30 Sep	Pegasus Airlines	direct
22 Sep - 26 Sep	Wizz Air UK
15 Sep - 20 Sep	Wizz Air UK
12 Sep - 26 Sep	Wizz Air UK
17 Sep - 22 Sep	Wizz Air UK
10 Sep - 13 Sep	KLM
27 Sep - 03 Oct	Wizz Air UK
27 Sep - 29 Sep	Wizz Air UK
12 Sep - 14 Sep	Wizz Air UK
11 Sep - 24 Sep	Wizz Air UK
27 Sep - 03 Oct	Pegasus Airlines	direct
23 Sep - 12 Oct	Fly One
23 Sep - 11 Oct	Fly One
23 Sep - 05 Oct	Fly One
23 Sep - 07 Oct	Fly One
23 Sep - 10 Oct	Fly One
23 Sep - 04 Oct	Fly One
26 Sep - 12 Oct	Fly One
26 Sep - 14 Oct	Fly One

Also check the deals for one-way flights from Istanbul to Dublin 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 Istanbul to Dublin in September from 153€

Return flights