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

Return flights

24 Dec - 05 Jan	Wizz Air Malta
10 Dec - 15 Dec	Ryanair
03 Dec - 11 Jan	Ryanair
12 Dec - 14 Dec	Ryanair
17 Dec - 18 Dec	Vueling Airlines
26 Dec - 05 Jan	Ryanair
25 Dec - 05 Jan	Wizz Air Malta
04 Dec - 09 Dec	Iberia
10 Dec - 12 Dec	Ryanair
15 Dec - 23 Dec	Vueling Airlines
04 Dec - 07 Dec	Iberia
04 Dec - 08 Dec	Iberia
06 Dec - 09 Dec	Ryanair
22 Dec - 02 Jan	Ryanair
30 Dec - 05 Jan	TAP
05 Dec - 09 Dec	Vueling Airlines
29 Dec - 05 Jan	Ryanair
30 Dec - 04 Jan	TAP
31 Dec - 04 Jan	Vueling Airlines
29 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Porto 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 Porto to Belgrade in December from 129€

Return flights