Low-cost carrier Wizz Air flew just a fifth of its usual number of flights last month and almost a third of its seats were empty.
The airline carried fewer than half a million passengers compared with almost three million in November 2019.
Despite only operating 20% of its planned capacity, its load factor fell from almost 93% last November to 68%.
Revenue per passenger kilometre was down almost 85%.
However Wizz continued to grow its network last month, when it announced three new domestic routes in Norway.
