AirHint found the following cheapest return flights from Belgrade (BEG) to Tbilisi (TBS) in September 2025 (see full year).

Return flights

29 Sep - 05 Oct	AJet
27 Sep - 06 Oct	Lufthansa
25 Sep - 05 Oct	Wizz Air UK
28 Sep - 05 Oct	Pegasus Airlines
19 Sep - 01 Oct	Pegasus Airlines
24 Sep - 30 Sep	easyJet
19 Sep - 26 Sep	Pegasus Airlines
22 Sep - 28 Sep	Pegasus Airlines
21 Sep - 28 Sep	Air Serbia
21 Sep - 26 Sep	Air Serbia
25 Sep - 30 Sep	LOT
28 Sep - 07 Oct	Pegasus Airlines
07 Sep - 14 Sep	Lufthansa
21 Sep - 30 Sep	Air Serbia
17 Sep - 20 Sep	LOT
18 Sep - 21 Sep	Pegasus Airlines
27 Sep - 07 Oct	Lufthansa

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

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 Tbilisi in September from $233

Return flights