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

Return flights

19 Jan - 26 Jan	Wizz Air
24 Jan - 25 Jan	Wizz Air
20 Jan - 27 Jan	Wizz Air
22 Jan - 23 Jan	Air Serbia
16 Jan - 17 Jan	Air Serbia	direct
19 Jan - 26 Jan	Air Serbia	direct
22 Jan - 23 Jan	Air Serbia	direct
20 Jan - 27 Jan	Air Serbia	direct
24 Jan - 25 Jan	Air Serbia	direct
17 Jan - 18 Jan	Air Serbia

Also check the deals for one-way flights from Belgrade 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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Cheapest return flights from Belgrade to Sofia in January from 108€

Return flights