"The Qantas plane veered off to the left. It was definitely taking evasive action."
Wellington Airport spokeswoman Renee Carter said the incident was not out of the ordinary.
"The airport has experienced some tailwind this afternoon which has meant aircraft have been requested by Airways to change landing direction," she said.
"While it may appear to those viewing the video that the two aircraft are close together, Airways have confirmed that no specific events have been out of normal operating procedure."
Airways air traffic services general manager Tim Boyle described the landing as a "go around" and said it was safe.
"While an event like this could appear pretty exciting from the ground, it was in fact a normal air traffic control procedure with the aircraft remaining safely separated throughout," he said.
"As is often the case, today there has been some tailwind affecting aircraft on their final approach into Wellington and so they have been approaching faster than normal.
"The Qantas aircraft was advised early on its approach by air traffic control that it may need to go around, and was instructed to do so once reaching the decision threshold. The aircraft turned left, passing over the terminal, and joined the "go-around" circuit.
"The Air New Zealand flight departed to the south normally and the Qantas aircraft landed without incident shortly afterwards."