ValuAir's special fares are $350, their average fare is $420 and fully flexible fare is $620.
SQ's fully flexible is $650 (1 to go with miles) 2 to go at $550 and 4 to go at $450.
SQ had specials on SQ225 (relaunched thrice weekly to PER in Nov) for $368 but they've all been snapped up.
Business pax will still choose SQ/QF because of schedule and miles. If you have a family of 4, you would rather take SQ at $450 rather than VF at $420.
QF's fares are comparable to SQ.
QF flies 10 times a week to Singapore from Perth. SQ flies 17 times. Most pax in both airlines connect in SIN onwards to Asia/Europe with their respective airlines.
I really wonder how VF will be able to face mighty QF/SQ on this route. Firstly, it's not that high yield, secondly, most of their pax connect through SIN to other destinations.
VF argues that their PER flights feed into their BKK, CGK and HKG flights ex SIN. QF/SQ fly from 7 destinations in Australia to feed into many Asian and European destinations ex SIN, which is why QF/SQ can do so profitably.
A lone A320 from PER will hardly generate feed to a single/double daily service to BKK, HKG or CGK respectively.
Plus, VF isn't even *that* cheap. 5 hours with a boxed meal of fried noodles and a muffin would be rather unbearable I think!