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

Return flights

23 Jan - 07 Feb	Wizz Air
25 Jan - 30 Jan	Wizz Air
09 Jan - 11 Jan	Wizz Air
13 Jan - 20 Jan	Wizz Air
25 Jan - 30 Jan	Air Serbia	direct
13 Jan - 20 Jan	Air Serbia	direct
02 Jan - 09 Jan	Air Serbia	direct
09 Jan - 09 Jan	Air Serbia	direct
09 Jan - 11 Jan	Air Serbia	direct
23 Jan - 07 Feb	Air Serbia	direct
01 Jan - 04 Jan	Air Serbia
02 Jan - 04 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.

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Cheapest return flights from Belgrade to Sofia in January from 75€

Return flights