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

Return flights

06 Dec - 13 Dec	easyJet
06 Dec - 08 Dec	easyJet
05 Dec - 07 Dec	Air Serbia
10 Dec - 14 Dec	Air Serbia
17 Dec - 21 Dec	Air Serbia
29 Dec - 03 Jan	Air Serbia
29 Dec - 05 Jan	Air Serbia
31 Dec - 02 Jan	easyJet
14 Dec - 30 Dec	Air Serbia
26 Dec - 02 Jan	easyJet
26 Dec - 03 Jan	easyJet
30 Dec - 02 Jan	Lufthansa
30 Dec - 01 Jan	Lufthansa
26 Dec - 31 Dec	easyJet
18 Dec - 23 Dec	easyJet
25 Dec - 29 Dec	Air Serbia
28 Dec - 31 Dec	Air Serbia
29 Dec - 04 Jan	Air Serbia
22 Dec - 04 Jan	Air Serbia
30 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 $175

Return flights