International traveller numbers have risen while domestic traffic is more subdued, Australia’s biggest airports say.

Australia’s largest airports have experienced strong growth in international passenger numbers, but domestic travel has been more subdued.

Sydney Airport had a 5.6 per cent lift in international travellers in May, and a 2.1 per cent increase in domestic passengers, compared to the same month a year ago.

Melbourne Airport’s international traffic rose by 11 per cent in May, while Brisbane Airport recorded a seven per cent jump.

Sydney Airport chief executive Kerrie Mather said travellers from China drove Sydney’s rise in international traffic, up 11.4 per cent from a year ago.

Melbourne Airport chief executive Chris Woodruff said Jetstar’s Melbourne to Japan service helped to drive strong growth from the Japanese market.

Domestic traffic rose by 3.1 per cent in Melbourne, and fell 1.7 per cent in Brisbane.

The subdued domestic numbers come as retailers, including travel agency Flight Centre, report sale declines following the tough federal budget handed down on May 13.