AirHint found the following cheapest return flights from London (LCY) to Belgrade (BEG) in April 2026 (see full year).

Return flights

01 Apr - 18 Apr	KLM
08 Apr - 09 Apr	KLM
14 Apr - 17 Apr	Lufthansa
07 Apr - 18 Apr	KLM
24 Apr - 01 May	Lufthansa
02 Apr - 07 Apr	KLM
02 Apr - 12 Apr	KLM
15 Apr - 17 Apr	Lufthansa
04 Apr - 09 Apr	KLM
04 Apr - 12 Apr	SWISS
16 Apr - 18 Apr	KLM

Also check the deals for one-way flights from London to Belgrade in April.

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 April from 242€

Return flights