Qantas staff will have to wear All Blacks uniforms tomorrow as the result of their company losing a Rugby World Cup bet with Air New Zealand.

The airlines have been sparring over social media in the lead-up to this morning's final between the All Blacks and Wallabies at Twickenham.

All Blacks fans celebrate the team's third Rugby World Cup final victory in a 34-17 win over the Wallabies.

And with the All Blacks getting the job done 34-17 - the Aussies are going to have to cop it tomorrow with Qantas crews having to wear All Blacks strips on flights tomorrow.

It could have been even worse for Qantas too, who had joked about the losing nation having to re-paint planes in the opposition's colours.