AirHint found the following cheapest return flights from Paris (CDG) to Sofia (SOF) in January 2026 (see full year).

Return flights

10 Jan - 17 Jan	easyJet
07 Jan - 10 Jan	Air Serbia
13 Jan - 26 Jan	Air Serbia
16 Jan - 20 Jan	Air Serbia
06 Jan - 13 Jan	Air Serbia
26 Jan - 08 Feb	Air Serbia
26 Jan - 07 Feb	Air Serbia
22 Jan - 26 Jan	SWISS
29 Jan - 02 Feb	SWISS
09 Jan - 11 Jan	Lufthansa
08 Jan - 11 Jan	Lufthansa
05 Jan - 10 Jan	Air Serbia
24 Jan - 31 Jan	Lufthansa
20 Jan - 08 Feb	SKY express
25 Jan - 08 Feb	SKY express
18 Jan - 01 Feb	SKY express
20 Jan - 01 Feb	SKY express
25 Jan - 01 Feb	SKY express
14 Jan - 01 Feb	SKY express
25 Jan - 13 Feb	SKY express

Also check the deals for one-way flights from Paris to Sofia in January.

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 January from 137€

Return flights