More than 600,000 passengers are expected to go through Auckland Airport these schools holidays; it's busiest in three years.

Two airline powerhouses, United Airlines and American Airlines, are also making their grand return, along with Air New Zealand's Chicago non-stop connection.

More than 40,000 people are expected in-and-out of the airport daily, a 70 percent recovery from 2019.

Auckland Airport Customer Manager, Scott Tasker told Mike Hosking staffing has been challenging as the industry rebuilds, but a recent job fair was successful.

He says thousands of positions still remain on offer.

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