Forecasters say it is unlikely fog will disrupt flights for a third time tomorrow.
Heavy fog across the country this morning saw already jaded passengers facing a second day of disruption.
Air New Zealand had to cancel 27 flights travelling to or from affected cities.
Normal operations resumed at Auckland Airport at around 8am after persistent fog across Auckland and Hamilton lifted.
Airlines have scheduled extra planes to clear a backlog of passengers created yesterday after more than 50 flights were cancelled.
Auckland Airport senior communication manager Richard Llewellyn said that although the process of clearing the backlog of flights had begun, other airports around the country were still being affected by the fog.
However, ONE News weather presenter Jim Hickey says there is unlikely to be any flight-hindering weather tomorrow.
"Not anticipating any disruptive fog for any of the major airports simply because circumstances are changing, we've got a drier air mass coming on and more breeze."
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Recipe for fog
Meteorologist Dan Corbett told TV ONE's Breakfast that the "very calm winds, calm conditions and the moisture" currently being experienced in Auckland are the "perfect recipe for the fog".
"It melted away slowly but it did linger around the Manukau harbour and across some spots in Waikato. It has reformed over many areas this morning, but it's not going to be as extensive and not as thick as yesterday morning.
Corbett says the big difference with the fog this morning is that, "we are seeing this low, slightly ease its way further east, putting a slight southerly drift on things over the Waikato and eventually across Auckland which will help stir it up".
Police have reminded motorists to be cautious of black ice, particularly as frost persists in the South Island.
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