More than 30 domestic flights from Auckland Airport were affected due to fog early this morning.
The airport said 25 regional flights has been cancelled and seven were delayed.
The fog restrictions have since been lifted.
12 domestic flights were delayed and 19 cancelled by the early morning fog which engulfed the city.
International flights were not affected.
Two flights to Wellington and one to Christchurch were delayed.
However, domestic flights to Dunedin and Queenstown have not been affected.
International flights are departing and arriving as normal.
Drivers are being advised to take extra care on Auckland's motorways and drive to the conditions.
TAKE EXTRA CARE: FOG— NZTA Akld & Nthlnd (@NZTAAkl) August 1, 2018
Fog is heavy in patches on most of Auckland's motorways this morning. Please ensure your lights are on & watch your following distance. ^TP#WhatLocationIsThis? #NameTheInterchange pic.twitter.com/Elcl04qSyn
Thick fog around parts of Auckland, including the Airport. Take care on the roads, and check in with your Airline if flying. ^GG pic.twitter.com/FHYxYHqFx2— MetService (@MetService) August 1, 2018