AirHint found the following cheapest one-way flights from Oslo (OSL) to Trondheim (TRD) in January 2026 (see full year).

One-Way flights

25 Jan	Wizz Air
13 Jan	Scandinavian Airlines	direct
14 Jan	Scandinavian Airlines	direct
15 Jan	Scandinavian Airlines	direct
16 Jan	Scandinavian Airlines	direct
17 Jan	Scandinavian Airlines	direct
19 Jan	Scandinavian Airlines	direct
20 Jan	Scandinavian Airlines	direct
21 Jan	Scandinavian Airlines	direct
23 Jan	Scandinavian Airlines	direct

Also check the deals for return flights from Oslo 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 one-way flights from Oslo to Trondheim in January from $72

One-Way flights