Fog closed Wellington International Airport from 7am today.
Airport operations general manager Graeme Ware said about 20 flights had been affected over the past two hours but numbers were difficult to assess.
Some arriving planes had been diverted to Palmerston North while others were sent back to where they came from.
Some departures had been cancelled and several delayed.
Mr Ware said weather forecasters expected the fog, which was covering much of Wellington, to clear by about 11am.
- NZPA
New Zealand
