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

Return flights

31 Oct - 04 Nov	KLM
22 Oct - 28 Oct	SWISS
28 Oct - 31 Oct	KLM
30 Oct - 05 Nov	SWISS
30 Oct - 04 Nov	SWISS
27 Oct - 30 Oct	Lufthansa
30 Oct - 03 Nov	SWISS
27 Oct - 31 Oct	Lufthansa
24 Oct - 31 Oct	SWISS
28 Oct - 03 Nov	SWISS
21 Oct - 10 Nov	SWISS
31 Oct - 09 Nov	KLM
20 Oct - 29 Oct	Lufthansa
20 Oct - 30 Oct	Lufthansa
20 Oct - 23 Oct	Lufthansa
08 Oct - 15 Oct	SWISS
10 Oct - 14 Oct	Lufthansa
29 Oct - 03 Nov	Lufthansa
03 Oct - 23 Nov	KLM
31 Oct - 03 Nov	SWISS

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 $267

Return flights