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

Return flights

13 Oct - 17 Oct	Ryanair
02 Oct - 06 Oct	Ryanair
02 Oct - 04 Oct	Ryanair
22 Oct - 25 Oct	Lufthansa	direct
24 Oct - 31 Oct	Lufthansa	direct
06 Oct - 10 Oct	easyJet
24 Oct - 27 Oct	Lufthansa	direct
01 Oct - 04 Oct	easyJet
07 Oct - 16 Oct	Lufthansa	direct
18 Oct - 20 Oct	Air Serbia	direct
31 Oct - 02 Nov	Air Serbia	direct
26 Oct - 02 Nov	Air Serbia	direct
26 Oct - 01 Nov	Air Serbia	direct
30 Oct - 02 Nov	Air Serbia	direct

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

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Cheapest return flights from Frankfurt to Belgrade in October from 156€

Return flights