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

Return flights

23 Dec - 02 Jan	Pegasus Airlines
23 Dec - 05 Jan	Pegasus Airlines
20 Dec - 29 Dec	Pegasus Airlines
06 Dec - 08 Dec	AJet
08 Dec - 11 Dec	Pegasus Airlines
26 Dec - 02 Jan	Pegasus Airlines
08 Dec - 10 Dec	AJet
11 Dec - 14 Dec	Pegasus Airlines
24 Dec - 28 Dec	Wizz Air
19 Dec - 24 Dec	AJet
05 Dec - 12 Dec	Air France
25 Dec - 01 Jan	Air France
29 Dec - 05 Jan	LOT
08 Dec - 19 Dec	Fly One
05 Dec - 19 Dec	Fly One
25 Dec - 01 Jan	Turkish Airlines	direct
23 Dec - 05 Jan	Turkish Airlines	direct
23 Dec - 02 Jan	Turkish Airlines	direct
19 Dec - 02 Jan	Fly One
15 Dec - 02 Jan	Fly One

Also check the deals for one-way flights from Istanbul to Copenhagen 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 Copenhagen in December from 105€

Return flights