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

Return flights

04 Dec - 08 Dec	Wizz Air Malta
22 Dec - 09 Jan	Ryanair
10 Dec - 14 Dec	Wizz Air
13 Dec - 11 Jan	Ryanair
24 Dec - 09 Jan	Ryanair
21 Dec - 09 Jan	Ryanair
24 Dec - 10 Jan	Ryanair
25 Dec - 09 Jan	Wizz Air Malta
04 Dec - 07 Dec	Wizz Air Malta
27 Dec - 09 Jan	Ryanair
15 Dec - 05 Jan	Wizz Air
27 Dec - 07 Jan	Ryanair
23 Dec - 09 Jan	Ryanair
14 Dec - 15 Dec	Scandinavian Airlines
06 Dec - 08 Dec	Lufthansa
05 Dec - 07 Dec	Scandinavian Airlines

Also check the deals for one-way flights from Sandefjord 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 Sandefjord to Belgrade in December from $245

Return flights