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

Return flights

11 Mar - 15 Mar	Vueling Airlines
13 Mar - 20 Mar	Air Serbia	direct
11 Mar - 15 Mar	Air Serbia	direct
04 Mar - 15 Mar	Air Serbia	direct
13 Mar - 15 Mar	Air Serbia	direct
01 Mar - 05 Mar	Air Serbia	direct
19 Mar - 22 Mar	Air Serbia	direct
07 Mar - 21 Mar	Lufthansa
08 Mar - 20 Mar	Lufthansa
11 Mar - 16 Mar	Vueling Airlines
31 Mar - 08 Apr	Lufthansa
30 Mar - 07 Apr	KLM
29 Mar - 07 Apr	LOT
29 Mar - 01 Apr	LOT
31 Mar - 07 Apr	Lufthansa
28 Mar - 13 Apr	SWISS
28 Mar - 08 Apr	Lufthansa
31 Mar - 12 Apr	Lufthansa
27 Mar - 12 Apr	LOT
28 Mar - 12 Apr	SWISS

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

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 March from 164€

Return flights