Now BA fares from London Heathrow are priced at a slight premium (see even more below) Therefore the sweet spot would wish to move up a bit on the scale. I extremely advise obtaining the Elite Model of Scott’s Cheap Flights (now known as Likely). I’ve used this email support https://businessflightshop.co.uk/blog/how-to-buy-packaged-tours-including-tickets-for-business-class-flights-to-australia/