Air New Zealand is having its biggest sale of the year on flights from Australia to NZ.

Twenty-one destinations are on sale including Sydney or Melbourne to Auckland from $199 one way, the Gold Coast to Auckland or Christchurch from $189 one way, and Perth to Auckland, Christchurch or Wellington from $419 one way.

You'll need to be quick - the sale finishes on Sunday, January 14.

Travel periods and conditions apply.

See airnewzealand.com.au or details.