Auckland Airport is making big plans to unite its international and domestic terminals due to an expected rise in passenger numbers.
The airport is expecting to invest $2.4 billion over the next 30 years to develop its facilities.
The company has unveiled what a future airport could look like. It predicts it will be dealing with 40 million passengers a year by 2044, up from 14.5 million at present.
The merging of terminals means the current domestic terminal could be turned into a cargo area.
Chief executive Adrian Littlewood says the airport needs to grow to meet demand and bringing the terminals together will help and make it more convenient for passengers.
Mr Littlewood says no money has been committed, but the overall infrastructure changes are tipped to cost $2.4 billion.
The concept information is being released now because it is important that people get a sense of what is being worked toward, he says.