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

Return flights

27 Mar - 29 Mar	Air Serbia	direct
23 Mar - 27 Mar	Air Serbia	direct
08 Mar - 22 Mar	Air Serbia	direct
12 Mar - 22 Mar	Air Serbia	direct
11 Mar - 22 Mar	Air Serbia	direct
07 Mar - 10 Mar	Air Serbia	direct
06 Mar - 08 Mar	Air Serbia	direct
23 Mar - 26 Mar	Air Serbia	direct
08 Mar - 11 Mar	Air Serbia	direct
02 Mar - 06 Mar	Air Serbia	direct
30 Mar - 21 Apr	Lufthansa
29 Mar - 02 Apr	Lufthansa
28 Mar - 03 Apr	SWISS
28 Mar - 05 Apr	SWISS
29 Mar - 02 Apr	Air Serbia	direct
28 Mar - 05 Apr	Air Serbia	direct

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 136€

Return flights