HungaroControl ATCs directed just over 420,000 aircraft in 2020, down from over 1 million in 2019.

Those included aircraft in high-altitude corridors over Kosovo which HungaroControl has directed since 2014 at the request of NATO.

The number of aircraft arrivals and departures at Ferenc Liszt International Budapest fell 61%, HungaroControl said.

HungaroControl noted that Eurocontrol augurs a return to 2019 air traffic levels by 2024 at the earliest in a "best-case scenario". That projection would imply a return to 50%-60% of 2019 levels this year, it added.