As it heads into the winter period, the carrier will cut capacity by 25% from its fleet of 70 aircraft. It plans to increase its fleet to 85 next summer.
The move comes as the airline disclosed a third quarter pre-tax profit of NOK 910 million (£76 million), warning demand for air travel may by hit by recent high inflation and increasing tax rates.
However, it said current booking trends were "encouraging", despite visibility remaining "low" as customers continue to book travel close to date of departure.