Qantas air stewards wear All Blacks jerseys for a day after losing Rugby World Cup bet to Air New Zealand

Qantas airlines were "officially" backing black yesterday, making their crew members wear All Blacks jerseys after losing a bet.

After engaging in a bit of banter on Twitter, Qantas and Air New Zealand entered into a high-stakes wager ahead of Sunday's Rugby World Cup final, committing to wear the other nation's colours should their team lose.

With the All Blacks reigning triumphant over the Wallabies in the history-making clash, Qantas swallowed its pride, offered up congratulations, and had staff put on the jerseys.

The lucky pilots and crew on flight QF143 from Sydney to Auckland are wearing the honorary uniform and will touch down in Auckland at 3.10pm on Monday.

A tweet from Qantas said "A bet is a bet. Today we followed through with #AirlineWager and we accepted jerseys from @FlyAirNZ."

In return, Air New Zealand shared the post and said thanks Qantas for being good sports.

Stuff.co.nz