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

Return flights

12 Dec - 15 Dec	Vueling Airlines
07 Dec - 13 Dec	easyJet
24 Dec - 05 Jan	Vueling Airlines
06 Dec - 09 Dec	Vueling Airlines
03 Dec - 06 Dec	Vueling Airlines
19 Dec - 09 Jan	Vueling Airlines
25 Dec - 05 Jan	easyJet
25 Dec - 06 Jan	easyJet
09 Dec - 13 Dec	Ryanair
02 Dec - 09 Dec	Wizz Air Malta
21 Dec - 24 Dec	Vueling Airlines
11 Dec - 18 Dec	Ryanair
19 Dec - 24 Dec	Vueling Airlines
25 Dec - 04 Jan	easyJet
15 Dec - 23 Dec	Vueling Airlines
30 Dec - 06 Jan	TAP
31 Dec - 06 Jan	Ryanair
30 Dec - 05 Jan	TAP
30 Dec - 04 Jan	TAP
31 Dec - 04 Jan	Vueling Airlines

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 $140

Return flights