~1,000,000 points and a family of 5? So probably economy unless you have any infants ? You might squeeze in Business one way and Economy the other ?
Either way, it’s going to be difficult getting 5 seats on the same flights, even in Economy. The standard answer would be to spilt the booking and travel in two groups ( but I know MY wife wouldn’t have any of that). You could then fly 24 or even 12 hours apart. Or look for parallel flights on Singapore Airlines and transfer some points to them?
As a Platinum, you could try the Family Guarantee - see below. They might just stretch it to 5… Or at least you’re only paying for 1 seat.
Good luck !
"Economy Reward Seats Guarantee for an Annual Family Trip
Once a year, be guaranteed to be able to redeem four return Economy Reward Seats to any domestic or international destination when travelling on any Virgin Australia marketed flight beginning with a ‘VA’ flight number.
Reward Seats can be redeemed using Points or Points plus Pay (minimum Points redemption applies).
These Reward Seats must be booked at least six months prior to your journey and are only available for one itinerary per year.
For more information or to make redemption booking, please contact our Membership Contact Centre.
Guaranteed Economy Reward Seats for an Annual Family Trip Terms and Conditions.