Flight QF1608 made it about 100km, so far as Northam, in keeping with flight monitoring web site Flightradar24, earlier than touchdown safely again in Perth simply after 5pm.
Perth airport mentioned there have been no stories of any accidents or main points on board.
Qantas are investigating.
It marks the second Qantas flight in as many days that is been pressured to show again.
This week’s hiccups mark the newest in a line of points for the embattled Australian airline, with a number of incidents within the few weeks and months.
Despite five flights being rotated mid-air up to now week, the International and Domestic CEO claims there are “absolutely no issues” with the airline.