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

Return flights

21 Aug - 22 Aug	Air Serbia	direct
22 Aug - 23 Aug	Air Serbia	direct
22 Aug - 29 Aug	Air Serbia	direct
17 Aug - 23 Aug	Air Serbia	direct
17 Aug - 31 Aug	Lufthansa
29 Aug - 31 Aug	Lufthansa
28 Aug - 31 Aug	Lufthansa
30 Aug - 02 Sep	Lufthansa
11 Aug - 18 Aug	Lufthansa
07 Aug - 11 Aug	Lufthansa
28 Aug - 31 Aug	Air Serbia	direct
30 Aug - 02 Sep	Air Serbia	direct

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

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 August from 169€

Return flights