The company's board didn't envisage paying an interim dividend while carrying out the capital return at the same time.
The shares last traded at $3.64, and have edged up 3.1 per cent this year.
Auckland Airport's aeronautical unit boosted income 8.8 per cent to $120.5 million and earnings before interest, tax, depreciation and amortisation climbed 12 per cent to $86.8 million. The retail unit increased revenue 3.9 per cent to $90.8 million while EBITDA rose 2.6 per cent to $82.8 million. The property business boosted revenue 9.5 per cent to $24.3 million and earnings 8.9 per cent to $18.3 million.
Van der Heyden said the increased aeronautical income was underpinned by higher international and domestic passenger volumes and growth in car parking revenue, while the property unit delivered a solid gain in rental income.
Auckland Airport increased international passenger movements 4.7 per cent to 4.08 million in the half, while domestic passenger movements rose 4.8 per cent to 3.52 million. Aircraft movements edged up 0.9 per cent to 78,959.
International passenger movements at the Cairns airport fell 6.9 per cent to 326,146, though domestic passenger numbers rose 4.7 per cent to 2.12 million. Mackay domestic passenger numbers were down 3.8 per cent to 582,371. The North Queensland Airports boosted net profit 19 per cent to A$11.2 million.
Queenstown Airport boosted international passenger numbers rose 29 per cent to 179,153, though domestic numbers were down 4.8 per cent to 464,786. The South Island hub lifted net profit 23 per cent to $3.8 million.
Auckland Airport's share of profits from its associates, including the North Queensland Airports, Queenstown Airport and Novotel Hotel, rose 11 per cent to $4.9 million.