AirHint found the following cheapest return flights from Belgrade (BEG) to Sofia (SOF) in October 2025 (see full year).

Return flights

22 Oct - 24 Oct	Wizz Air
25 Oct - 28 Oct	Air Serbia
27 Oct - 31 Oct	Wizz Air
31 Oct - 02 Nov	Wizz Air
23 Oct - 25 Oct	Air Serbia
23 Oct - 25 Oct	Air Serbia	direct
25 Oct - 28 Oct	Air Serbia	direct
27 Oct - 31 Oct	Air Serbia	direct
10 Oct - 16 Oct	Wizz Air
10 Oct - 16 Oct	Air Serbia	direct
31 Oct - 02 Nov	Air Serbia	direct
24 Oct - 26 Oct	Air Serbia	direct

Also check the deals for one-way flights from Belgrade to Sofia in October.

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 October from 121€

Return flights