How far in advance must Business Rewards award bookings be made?

Business Rewards Award bookings can be made online at any time from 11 months prior departure and up to six hours before a flight departs, subject to seat availability.

What are the differences between 'Skywards Flex' and 'Skywards Saver' fares?

Do I earn the same Miles Accelerator bonus if I have purchased a Skywards Flex or Skywards Saver fare?

Can I combine Saver rewards and Flex rewards?