Narita International Airport Corp. said Friday it has agreed with the International Air Transport Association to cut its notoriously high landing fees for the first time by an average of 21 percent.

The new fees will be in effect from Oct. 1 through the end of March 2009, when they will be reassessed.

Narita airport, whose landing charges are the highest in the world, has been under constant pressure to cut its fees. It had pledged to consider cutting the charges when it received its first full-year financial results after its privatization in April 2004.