AN airport functioning at the same capacity as Canberra Airport could be operating in western Sydney by 2027.
A new report, commissioned by the NSW Business Chamber, shows an airport at Badgerys Creek could accommodate three million passenger movements in its first year of operation.
It could grow to 30 million passenger movements, or the size of Brisbane Airport, by 2040.
With the number of airport passengers expected to double over next two decades, the report explores the economic impacts of a western Sydney airport.
It would pour $6.6 billion into the western Sydney economy — $11.6 billion across Sydney — with baseline projections indicating 3800 small businesses could be created by 2050, the report states.
Liverpool would receive the largest slice of the pie with almost 16,000 jobs by 2050 with 548 and 863 full-time jobs within Penrith and Blacktown respectively under the report's most conservative scenario.
Former Tourism and Transport Forum managing director Chris Brown said an airport alone is not enough for regional growth.
"I want an economic strategy for western Sydney — it's really important to keep in context that an airport itself is no good for anybody but an airport that's part of a broader economic and population sustainable strategy for western Sydney is exactly what we want."
In 1986 the federal government nominated Badgerys Creek as the site for a second airport and acquired 1700 hectares for the project.
But in the lead-up to the federal election both parties have been coy in nominating their preferred site.
The current federal government had ruled out the Badgerys Creek site, previously nominating Wilton as its preferred location.
A joint study into aviation capacity in the Sydney region last year stated Richmond RAAF Base was also capable of accommodating civil traffic, but would need a significant upgrade to airport infrastructure.
NSW Business Chamber western Sydney director David Borger said Badgerys Creek would stimulate the surrounding local government areas through creating new business opportunities and local jobs.
But the report did not analyse social or environmental impacts.
Blacktown councillor Stephen Bali, who opposes a western Sydney airport, said the business chamber was smart in getting unions, community groups and business representatives on side.
"You've occupied the space of where there's money and support — so the poor old residents are being left out there," Mr Bali said.
"The report goes a long way into looking at economic analysis but we still need to look at the environmental impact."