The Civil Aviation Authority says people's travel plans are unlikely to be affected by volcanic ash clouds during the next few days.
The eruption of a Chilean volcano that caused flights to be cancelled in several countries, including New Zealand, is continuing.
The authority's meteorology manager, Peter Lechner, says however that ash clouds north and south of New Zealand are being closely monitored and they don't pose an immediate threat.
As long as the volcano is erupting, though, it's possible there could be problems further on in the week.
Mr Lechner says flights in and out of the South Island are most likely to be affected, because of where the ash clouds are moving.