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

Return flights

31 Dec - 10 Jan	Ryanair
31 Dec - 08 Jan	Wizz Air
31 Dec - 06 Jan	Ryanair
31 Dec - 15 Jan	Ryanair	direct
31 Dec - 05 Jan	Wizz Air
31 Dec - 17 Jan	Ryanair	direct
28 Dec - 01 Jan	Norwegian Air Sweden AOC
31 Dec - 14 Jan	Ryanair	direct
26 Dec - 01 Jan	Wizz Air
26 Dec - 05 Jan	Wizz Air
25 Dec - 31 Dec	Norwegian Air Sweden AOC
26 Dec - 30 Dec	Wizz Air
26 Dec - 31 Dec	Scandinavian Airlines
27 Dec - 30 Dec	Wizz Air
26 Dec - 28 Dec	LOT
25 Dec - 29 Dec	Norwegian Air Sweden AOC
24 Dec - 29 Dec	Wizz Air
27 Dec - 31 Dec	Wizz Air
27 Dec - 29 Dec	Wizz Air
24 Dec - 31 Dec	Wizz Air

Also check the deals for one-way flights from Copenhagen to Sofia 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 Copenhagen to Sofia in December from $188

Return flights