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

Return flights

07 Dec - 14 Dec	Ryanair
11 Dec - 17 Dec	Ryanair
11 Dec - 15 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
06 Dec - 13 Dec	Ryanair
16 Dec - 07 Jan	Ryanair
16 Dec - 20 Dec	Ryanair
07 Dec - 11 Dec	Ryanair
07 Dec - 12 Dec	Ryanair
17 Dec - 21 Dec	Ryanair
10 Dec - 14 Dec	Ryanair
15 Dec - 12 Jan	Ryanair
07 Dec - 11 Jan	Ryanair
12 Dec - 11 Jan	Ryanair
27 Dec - 09 Jan	Ryanair
10 Dec - 12 Jan	Ryanair
13 Dec - 11 Jan	Ryanair
08 Dec - 09 Jan	Ryanair
08 Dec - 11 Jan	Ryanair
09 Dec - 12 Jan	Ryanair

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

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 December from 84€

Return flights