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

Return flights

02 Dec - 03 Dec	easyJet
16 Dec - 20 Dec	easyJet
16 Dec - 18 Dec	easyJet
03 Dec - 10 Dec	easyJet
16 Dec - 17 Dec	easyJet
13 Dec - 16 Dec	easyJet
03 Dec - 06 Dec	easyJet
02 Dec - 06 Dec	easyJet
03 Dec - 07 Dec	easyJet
11 Dec - 13 Dec	Vueling Airlines
16 Dec - 13 Jan	Air Serbia
17 Dec - 01 Jan	Air Serbia
30 Dec - 01 Jan	Air Serbia
31 Dec - 07 Jan	Lufthansa
26 Dec - 01 Jan	Air Serbia
17 Dec - 14 Jan	Lufthansa
17 Dec - 13 Jan	Lufthansa
25 Dec - 01 Jan	Air Serbia
28 Dec - 01 Jan	Air Serbia
30 Dec - 06 Jan	Air Serbia

Also check the deals for one-way flights from Paris 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 Paris to Sofia in December from $129

Return flights