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

One-Way flights

17 Apr	Norwegian	direct
02 Apr	Norwegian	direct
03 Apr	Norwegian	direct
04 Apr	Scandinavian Airlines	direct
05 Apr	Scandinavian Airlines	direct
08 Apr	Scandinavian Airlines	direct
09 Apr	Scandinavian Airlines	direct
10 Apr	Scandinavian Airlines	direct
11 Apr	Scandinavian Airlines	direct
12 Apr	Scandinavian Airlines	direct

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

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 April from $69

One-Way flights