AirHint found the following cheapest return flights from Sandefjord (TRF) to Trondheim (TRD) in January 2026 (see full year).

Return flights

22 Jan - 25 Jan	Ryanair
31 Jan - 01 Feb	Wideroe
30 Jan - 01 Feb	Wideroe
16 Jan - 19 Jan	Wideroe	direct
15 Jan - 22 Jan	Ryanair
23 Jan - 26 Jan	Wideroe
16 Jan - 18 Jan	Wideroe	direct
29 Jan - 30 Jan	Wideroe
17 Jan - 18 Jan	Wideroe
14 Jan - 15 Jan	Wideroe
14 Jan - 15 Jan	Wideroe	direct
20 Jan - 21 Jan	Wideroe	direct

Also check the deals for one-way flights from Sandefjord to Trondheim in January.

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 Trondheim in January from $218

Return flights