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
09 Dec - 10 Dec	easyJet
13 Dec - 23 Dec	Air Serbia
12 Dec - 14 Dec	Air Serbia
22 Dec - 27 Dec	Air Serbia
05 Dec - 07 Dec	Air Serbia
03 Dec - 04 Dec	Air Serbia
04 Dec - 05 Dec	Air Serbia
05 Dec - 06 Dec	Air Serbia
06 Dec - 07 Dec	Air Serbia
12 Dec - 11 Jan	Air Serbia
29 Dec - 01 Jan	Air Serbia
31 Dec - 01 Jan	easyJet
27 Dec - 01 Jan	Austrian Airlines
30 Dec - 02 Jan	Lufthansa
30 Dec - 01 Jan	Lufthansa
19 Dec - 03 Jan	easyJet
27 Dec - 02 Jan	Air Serbia
18 Dec - 05 Jan	Vueling Airlines
26 Dec - 03 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 151€

Return flights