Norwegian Air's unit in Republic posts a $151m loss
Unfavourable routes, high fuel costs and incentives for passengers saw Ireland-based Norwegian Air International - a unit of Norwegian Air Shuttle - post a $151m (£119.8m) loss last year.
Norwegian axed its transatlantic flights between Belfast International and New York in October after just one year, blaming customer demand.
It has also been one of the airlines most affected by the worldwide grounding of Boeing's 737 Max aircraft. It took delivery of its first Max 8 jet in 2017 and had 18 of the aircraft in service. The groundings upended its schedules and network capabilities.
The loss incurred by Norwegian Air International last year was an improvement on the $445.7m (£353.6m) loss it recorded a year earlier. Its revenue declined to $1.73bn (£1.37bn) from $2.02bn (£1.6bn).