The launch of the redeveloped Cairns Airport is expected to enhance tourism in the region, according to Deputy Premier and Minister for Health Paul Lucas.

Mr Lucas said tourism directly contributed $1.3 billion to TNQ's economy and the sector was highly dependent on the support of its airline partners.

"A strong airport means strong tourism and the Cairns Airport continues to play a crucial role in the Tropical North's future growth," Mr Lucas said.

"Cairns is Australia's second busiest regional airport after Coolangatta on the Gold Coast, and it's estimated that the airport generates annually around $2 billion for the regional economy.

"Around 30,000 jobs in the region are also dependent on the successful operation of Cairns Airport."

Cairns Airport spokesperson, Helen Laird, said the airport is now better equipped to accommodate additional tourists.

"We've got nearly half the floor space again than what we had prior to the development, and the project was completed three months ahead of schedule."

Member for Cairns, Desley Boyle, said Cairns Airport Pty Ltd, owners of the Cairns Airport, were investing in the future of Tropical North Queensland.

"The $200 million Cairns Airport redevelopment is a savvy investment with benefits for the investors, the tourism industry and the people of Cairns," Ms Boyle said.

"The Cairns Airport will also continue to play a vital role as Queensland's gateway to Papua New Guinea and the Pacific - something of critical importance for trade in this region."

In the year ending June 2010 Tropical North Queensland welcomed over two million international and domestic visitors who spent $2.4 billion on their trips to the region.