Cheapest return SOF–BEG flights, September

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

Return flights

25 Sep - 28 Sep Austrian Airlines
26 Sep - 28 Sep Air Serbia direct
02 Sep - 04 Sep Air Serbia direct
25 Sep - 28 Sep Air Serbia direct

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

Powered by

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 Belgrade

Cheap car rent in Belgrade

Feel free to contact us with any feedback or request another flight research.