The operator of Narita Airport said Thursday it will reduce user charges for airlines currently operating international or domestic passenger flights in a bid to help businesses hit hard by the coronavirus pandemic.

Narita International Airport Co. said it will waive landing and parking charges for all scheduled domestic flights, while reducing the amount for international flights.

The measure will be put into effect retroactively from April. It will be in place until the number of flights exceeds 50 percent of those logged in fiscal 2019 and a recovery trend can be expected.

"We are staking everything to maintain the aviation network of the country," Akihiko Tamura, the company's president, said at a news conference.

For international flights, small-sized aircraft will receive a ¥30,000 ($280) reduction, while ¥70,000 will be cut for medium- or large-sized planes with a maximum takeoff weight of 100 tons or more.

The number of arrivals and departures between April and September at the airport near Tokyo dropped 64% from a year earlier to 47,986. The number of passengers tumbled 94% in the same period due to travel restrictions imposed amid the pandemic, according to the company.

ANA Holdings Inc., the parent of major Japanese carrier All Nippon Airways Co., is expecting to book a record annual net loss of around ¥530 billion ($5 billion), company sources said Wednesday.