South Australia, the location of the next World Routes event, has reported a record number of visors to the region, with the state's visitor economy soaring to an all-time-high of AUD $6.9 billion.

The results of the latest International and National Visitor Survey showed growth in domestic and international expenditure and visitation.

The biggest boost came from interstate guests, with 2.5 million visitors spending a record $2.2 billion in South Australia. This growth complemented an increase in international expenditure, which now sits at $1.15 billion, a 4% increase on 12 months ago.

China led international growth - with expenditure up 15 per cent to $426 million. The United Kingdom, United States and New Zealand also recorded strong growth.

South Australian Tourism Commission, Chief Executive, Rodney Harrex, said it's exciting to start the new year with these impressive figures.

"The State Tourism Plan 2020 has helped build a strong and competitive tourism industry, as we work towards an $8 billion visitor economy - it is vital that this momentum continues," Mr Harrex said.

"South Australia is seeing a huge increase in its level of aviation activity and with World Routes coming to Adelaide this year, we expect demand will only continue to increase." he said.

Acting Minister for Trade, Tourism and Investment, David Pisoni, said the results were pleasing and a testament to the hard work and passion of thousands of local tourism operators.

"When we attract more tourists to experience the wonders of South Australia and our world-class events we grow our economy and help create more local jobs,' Minister Pisoni said.

"We look forward to building on this momentum by ensuring that South Australia continues to deliver world-class events and experiences to our valued visitors particularly in the regions, through new and exciting government initiatives." he said.

Adelaide, the capital of South Australia, will host the 25th World Route Development Forum 21-24 September 2019 at the Adelaide Showground with 3,000 delegates expected to attend. Attracting senior decision makers from the world's leading aviation organisations, World Routes provides a platform for route development professionals to discuss, develop and plan airline network strategy on a global scale.

Contributed by Routes