AirHint found the following cheapest return flights from Bergen (BGO) to Trondheim (TRD) in December 2025 (see full year).

Return flights

24 Dec - 29 Dec	Wideroe	direct
08 Dec - 14 Dec	Norwegian	direct
07 Dec - 14 Dec	Norwegian	direct
01 Dec - 14 Dec	Norwegian	direct
01 Dec - 07 Dec	Norwegian	direct
08 Dec - 15 Dec	Norwegian	direct
14 Dec - 15 Dec	Norwegian	direct
07 Dec - 15 Dec	Norwegian	direct
01 Dec - 15 Dec	Norwegian	direct
05 Dec - 14 Dec	Norwegian	direct
29 Dec - 11 Jan	Norwegian	direct
21 Dec - 11 Jan	Norwegian	direct
22 Dec - 11 Jan	Norwegian	direct
26 Dec - 11 Jan	Norwegian	direct

Also check the deals for one-way flights from Bergen to Trondheim 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 Bergen to Trondheim in December from $118

Return flights