The transport ministry will increase the discount on landing fees paid by domestic airlines at most government-managed airports to help the carriers weather the economic slowdown.
Starting next month, the discount will be 40 percent, up from the current 30 percent.
The decision announced Tuesday is part of government measures announced in April to support struggling airlines and will apply to domestic flights serving 24 airports, excluding Tokyo's Haneda and Osaka International Airport, for which separate discounts apply, until the end of March, the Land, Infrastructure, Transport and Tourism Ministry said.
At Haneda, where landing fees are currently discounted by 10 percent to 50 percent depending on the route, the range will increase to 25 percent to 67 percent.
For example, the landing fee discount for flights to Haneda from nine airports, including Wakkanai in Hokkaido and Saga, will be increased to 67 percent from the current 50 percent.
The ministry estimates that the increased discounts will cut airlines' landing fees by ¥5 billion.