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

Return flights

24 Dec - 03 Jan	Pegasus Airlines	direct
06 Dec - 11 Dec	Pegasus Airlines	direct
03 Dec - 10 Dec	Pegasus Airlines	direct
04 Dec - 10 Dec	Pegasus Airlines	direct
04 Dec - 07 Dec	Pegasus Airlines	direct
02 Dec - 07 Dec	Pegasus Airlines	direct
01 Dec - 07 Dec	Pegasus Airlines	direct
06 Dec - 16 Dec	Pegasus Airlines
03 Dec - 13 Dec	Pegasus Airlines
06 Dec - 15 Dec	Pegasus Airlines
06 Dec - 16 Dec	Pegasus Airlines	direct
29 Dec - 05 Jan	Fly One

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

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 December from $144

Return flights