Since 1am this morning, everyone arriving into New Zealand, except those coming from Pacific Islands nations, is required to self-isolate for 14 days.
Officials say people will be able to board a connecting domestic flight to reach their intended destination first.
Airport Chief Executive Adrian Littlewood says as disruptive as it seems, it's important people are vigilant.
Officials are also encouraging people to arrange private transport home from the airport where possible.
Meanwhile, Australia has followed suit and implemented the same restriction to stem the outbreak of COVID-19.
