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

Return flights

03 Dec - 17 Dec	Ryanair
12 Dec - 14 Dec	Ryanair
25 Dec - 15 Jan	Wizz Air Malta
16 Dec - 21 Dec	Vueling Airlines
04 Dec - 06 Dec	Wizz Air Malta
04 Dec - 09 Dec	Wizz Air Malta
06 Dec - 14 Dec	easyJet
11 Dec - 14 Dec	easyJet
03 Dec - 12 Dec	Ryanair
31 Dec - 11 Jan	easyJet
07 Dec - 11 Dec	Vueling Airlines
14 Dec - 21 Dec	Air Serbia	direct
30 Dec - 11 Jan	Air Serbia
25 Dec - 15 Jan	Air Serbia	direct
28 Dec - 08 Jan	Air Serbia
30 Dec - 11 Jan	Air Serbia	direct
30 Dec - 03 Jan	Ryanair
23 Dec - 03 Jan	Air Europa
25 Dec - 04 Jan	TAP
30 Dec - 04 Jan	Air Serbia

Also check the deals for one-way flights from Lisbon 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 Lisbon to Belgrade in December from 139€

Return flights