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

Return flights

31 Dec - 14 Jan	Ryanair	direct
31 Dec - 07 Jan	Wizz Air
31 Dec - 15 Jan	Ryanair	direct
08 Dec - 11 Dec	Ryanair
15 Dec - 17 Dec	Wizz Air
09 Dec - 11 Dec	Ryanair
31 Dec - 17 Jan	Ryanair	direct
11 Dec - 13 Dec	Ryanair
08 Dec - 13 Dec	Ryanair
26 Dec - 07 Jan	Wizz Air
11 Dec - 14 Dec	Ryanair
16 Dec - 17 Dec	Wizz Air
10 Dec - 11 Dec	Ryanair	direct
10 Dec - 17 Dec	Ryanair	direct
10 Dec - 18 Dec	Ryanair	direct
31 Dec - 08 Jan	Wizz Air
29 Dec - 14 Jan	Ryanair	direct
29 Dec - 15 Jan	Ryanair	direct
31 Dec - 10 Jan	Wizz Air
29 Dec - 17 Jan	Ryanair	direct

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 104€

Return flights