Air New Zealand offers cheap airfares to celebrate Grabaseat's birthday

Air New Zealand is offering airfares for as low as $13 to celebrate the 13th birthday of its Grabaseat website.

As well as the $13 flights across its domestic network, the promotion includes flights to Fiji, New Caledonia, the Gold Coast, Brisbane, Sydney and Melbourne for $99.

Other international deals include flights to San Francisco or Houston for $749 return and Chicago or Vancouver for $799 return.

The sale kicked off at midnight last night on the Grabaseat website, and will rollout over the next 48 hours, or until sold out.

Newshub.