Continued border uncertainty between New Zealand and Australia means Air New Zealand must cancel more than 1000 flights through to the end of December 2021.
This follows other cancellations made since quarantine-free travel was first paused in the middle of the year.
"Now, due to recent statements by the New Zealand Government that quarantine-free travel between Australia and New Zealand is unlikely to recommence this year, we've had to make the difficult decision to change our schedule," said Air New Zealand chief customer and sales officer, Leanne Geraghty.
"This will be particularly tough news for families and friends who were hoping to catch up over Christmas. I appreciate how difficult this news will be, but our hands are tied until border restrictions ease, and we receive further clarity from the New Zealand Government."