Airport security staff are holding a strike during the school holidays. It's the first industrial action by the group in 30 years and comes after they failed to settle a new agreement with the Aviation Security Service.
An aviation expert says a looming strike by airport security workers will cost airlines dearly.
Staff at the Aviation Security Service have given notice of their first strike in 30 years from July 20, and former Aviation Industry Association chief executive Irene King believes frustrated passengers will chose not to fly.
"I would imagine that they'd be pretty hacked off about it all. The flights cannot fly without this service being there."
Ms King hopes the unions and the Aviation Security Service can resolve their issues quickly to minimise the impact on travellers.
The E tu union says security staff are hoping mediation and a "decent pay rise" will lead to a resolution before a strike becomes necessary.
The latest contract offer by the Aviation Security Service would see some members go three years without a pay rise.
In January, workers threatened to strike after transport allowances to and from the airport were cut.
Newshub. / NZN