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

Return flights

03 Oct - 10 Oct	KLM
06 Oct - 15 Oct	KLM
07 Oct - 10 Oct	KLM
27 Oct - 30 Oct	KLM
27 Oct - 31 Oct	KLM
28 Oct - 31 Oct	KLM
10 Oct - 13 Oct	KLM
10 Oct - 14 Oct	KLM
10 Oct - 15 Oct	KLM
31 Oct - 03 Nov	KLM
15 Oct - 22 Oct	SWISS
31 Oct - 02 Nov	SWISS
30 Oct - 03 Nov	SWISS
29 Oct - 02 Nov	Lufthansa

Also check the deals for one-way flights from London 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 London to Belgrade in October from $270

Return flights