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

Return flights

13 Dec - 17 Dec	Ryanair
13 Dec - 16 Dec	Ryanair
15 Dec - 18 Dec	Ryanair
06 Dec - 13 Dec	Ryanair
13 Dec - 18 Dec	Ryanair
03 Dec - 07 Dec	Ryanair
13 Dec - 14 Dec	Ryanair
04 Dec - 09 Dec	Ryanair
07 Dec - 14 Dec	Ryanair
15 Dec - 17 Dec	Ryanair
31 Dec - 15 Jan	Ryanair
31 Dec - 14 Jan	Ryanair
18 Dec - 22 Jan	Ryanair
30 Dec - 07 Jan	Ryanair
18 Dec - 11 Jan	Jet2
13 Dec - 06 Jan	Ryanair
29 Dec - 11 Jan	Ryanair
28 Dec - 09 Jan	Ryanair
04 Dec - 18 Jan	Ryanair
31 Dec - 06 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.

Book a cheap hotel in Belgrade

Cheap car rent in Belgrade

Cheapest return flights from London to Belgrade in December from 96€

Return flights