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

Return flights

10 Dec - 15 Dec	Norwegian	direct
03 Dec - 07 Dec	Wizz Air UK
02 Dec - 06 Dec	Air Serbia
22 Dec - 07 Jan	Norwegian	direct
27 Dec - 07 Jan	Wizz Air
23 Dec - 06 Jan	LOT
27 Dec - 07 Jan	Norwegian	direct
31 Dec - 03 Jan	LOT
22 Dec - 03 Jan	Norwegian	direct
29 Dec - 02 Jan	Air Serbia	direct
31 Dec - 07 Jan	Norwegian	direct
22 Dec - 27 Dec	Norwegian	direct
27 Dec - 03 Jan	Norwegian	direct
22 Dec - 24 Dec	Norwegian	direct
31 Dec - 03 Jan	Norwegian	direct

Also check the deals for one-way flights from Belgrade to Oslo 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 Belgrade to Oslo in December from $157

Return flights