New Zealand State Highway 20 New Zealand State Highway 20 State Highway 20, also known as the Southwestern Motorway, is a New Zealand state highway linking State Highway 1 at Manukau City Centre with State Highway 16 in Point Chevalier, via Mangere and Onehunga. Along with its spurs, State Highway 20A and 20B, the state highway serves Auckland Airport, the country's largest, therefore making State Highway 20 a key arterial route connecting the airport to the wider Auckland region and most of the upper North Island. The route also forms the southern part of the Western Ring Route, a motorway route bypassing central Auckland. It
Hamilton Airport (New Zealand) airport became a terminal for Trans Tasman air routes, with charter flights provided on Boeing 727s by Kiwi International Airlines of New Zealand (not to be confused with the United States-based Kiwi International Air Lines) which served Brisbane, Sydney and Melbourne. New Zealand's Kiwi went bankrupt in 1996, but by that time Freedom Air had begun flying the same routes with Boeing 737 aircraft. They also, briefly, operated flights to Nadi, Fiji, in 2005. Freedom Air ultimately decided to make Hamilton International Airport their company hub until parent company Air New Zealand closed the airline down on 30 March 2008