Norwegian Air Shuttle and its subsidiaries saw a 90% decline in traffic during September 2020 compared to the same period in 2019.
Just 319,370 passengers travelled with the group last month which is still operating a vastly reduced network.
The figures are as a result of the Coronavirus Pandemic and the result of travel restrictions of many of Norwegians most popular destinations.
Jacob Schram, CEO of Norwegian, said: “In September several European countries were classified as ‘red’ by the authorities. We have seen that as soon as the authorities impose new travel restrictions demand is immediately impacted.
“We are continuously adapting our route network in line with changing demand, but the frequent changes in travel restrictions make forward planning difficult, both for us and our customers. Looking ahead, this continues to be a prolonged crisis that is far from over.“
From the UK Norwegian has primarily reopened on Nordic routes such as Oslo, Tromso and Copenhagen but plans to reopen more in the next few months.