AirHint found the following cheapest return flights from Izmir (ADB) to Istanbul (SAW) in September 2025 (see full year).

Return flights

26 Sep - 04 Oct	AJet	direct
17 Sep - 30 Sep	AJet	direct
19 Sep - 23 Sep	AJet	direct
19 Sep - 21 Sep	AJet	direct
18 Sep - 20 Sep	AJet	direct
19 Sep - 22 Sep	AJet	direct
25 Sep - 29 Sep	AJet	direct
16 Sep - 23 Sep	AJet	direct
15 Sep - 23 Sep	AJet	direct
14 Sep - 07 Oct	AJet	direct
16 Sep - 21 Sep	AJet	direct
09 Sep - 16 Sep	AJet	direct
22 Sep - 02 Oct	AJet	direct
24 Sep - 02 Oct	AJet	direct
13 Sep - 03 Oct	AJet	direct

Also check the deals for one-way flights from Izmir 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 Izmir to Istanbul in September from 65€

Return flights