Singapore Airlines will cut capacity by 96 per cent until the end of April.
The decision comes following the further tightening of border controls around the world to stem the Covid-19 outbreak.
This will result in the grounding of around 138 Singapore Airlines and SilkAir aircraft, out of a total fleet of 147.
The company described the situation as “the greatest challenge that the Singapore Airlines Group has faced in its existence”.
The group’s low-cost unit, Scoot, will also suspend most of its network, resulting in the grounding of 47 of its fleet of 49 aircraft.