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

One-Way flights

15 Mar	Norwegian	direct
09 Mar	Norwegian	direct
13 Mar	Scandinavian Airlines	direct
02 Mar	Scandinavian Airlines	direct
03 Mar	Scandinavian Airlines	direct
04 Mar	Scandinavian Airlines	direct
16 Mar	Scandinavian Airlines	direct
18 Mar	Scandinavian Airlines	direct
19 Mar	Scandinavian Airlines	direct
23 Mar	Scandinavian Airlines	direct

Also check the deals for return flights from Trondheim to Oslo in March.

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 Trondheim to Oslo in March from $51

One-Way flights