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

Return flights

11 Dec - 21 Dec	easyJet
10 Dec - 21 Dec	easyJet
13 Dec - 07 Jan	easyJet
03 Dec - 14 Dec	easyJet
03 Dec - 21 Dec	easyJet
17 Dec - 07 Jan	easyJet
14 Dec - 20 Dec	easyJet
03 Dec - 07 Dec	easyJet
01 Dec - 12 Dec	easyJet
05 Dec - 12 Dec	easyJet
18 Dec - 11 Jan	easyJet
01 Dec - 05 Dec	easyJet
08 Dec - 12 Dec	easyJet
31 Dec - 07 Jan	easyJet
17 Dec - 11 Jan	easyJet
24 Dec - 11 Jan	easyJet
31 Dec - 01 Jan	easyJet
13 Dec - 09 Jan	easyJet
19 Dec - 11 Jan	easyJet
20 Dec - 11 Jan	easyJet

Also check the deals for one-way flights from Southend 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 Southend to Belgrade in December from $153

Return flights