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

Return flights

29 Oct - 01 Nov	Pegasus Airlines	direct
07 Oct - 28 Oct	Pegasus Airlines
17 Oct - 27 Oct	Pegasus Airlines	direct
07 Oct - 19 Nov	Pegasus Airlines
31 Oct - 31 Oct	AJet	direct
20 Oct - 31 Oct	Turkish Airlines	direct
20 Oct - 30 Oct	Turkish Airlines	direct
11 Oct - 16 Oct	Air Serbia
11 Oct - 20 Oct	Air Serbia
13 Oct - 21 Oct	Pegasus Airlines	direct
27 Oct - 08 Nov	Fly One
27 Oct - 10 Nov	Fly One
27 Oct - 01 Nov	Fly One
23 Oct - 29 Oct	Pegasus Airlines
24 Oct - 28 Oct	HiSky Europe
27 Oct - 03 Nov	Fly One
07 Oct - 19 Nov	AJet	direct
27 Oct - 09 Nov	Fly One
13 Oct - 01 Nov	SKY express

Also check the deals for one-way flights from Istanbul to Duesseldorf in October.

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 October from $169

Return flights