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

Return flights

17 Sep - 24 Sep	AJet	direct
24 Sep - 29 Sep	AJet	direct
17 Sep - 22 Sep	Pegasus Airlines
23 Sep - 26 Sep	Pegasus Airlines	direct
24 Sep - 28 Sep	Pegasus Airlines
11 Sep - 22 Sep	AJet	direct
10 Sep - 24 Sep	AJet	direct
11 Sep - 14 Sep	AJet	direct
17 Sep - 22 Sep	AJet	direct
09 Sep - 09 Sep	Pegasus Airlines	direct
30 Sep - 08 Oct	AJet	direct
30 Sep - 02 Oct	AJet	direct
25 Sep - 19 Oct	AJet	direct
25 Sep - 09 Oct	AJet
25 Sep - 09 Oct	AJet	direct
27 Sep - 04 Oct	AJet	direct
05 Sep - 17 Oct	AJet
27 Sep - 10 Oct	AJet
28 Sep - 12 Oct	AJet
27 Sep - 10 Oct	AJet	direct

Also check the deals for one-way flights from Istanbul to Duesseldorf 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 Duesseldorf in September from 147€

Return flights