Error fares from Sydney to Bali from $293 return flying Virgin Australia found by FlightScout. Travel dates in March / April 2019.
This price can come down a further $30 using the promo-code FOLLOWTOFLY30 with BYOjet.
These fares are usually $500+ for a saver fare, as they are an error fare they may not last long!
Virgin Australia is a full-service airline so luggage and meals are included. All prices quoted are for return fares and include taxes.
Bali dates are listed on FlightScout