Can I purchase a ticket to an event without setting up a Flexischools account?

Yes, if this was requested by the event manager. Parents can go to www.flexischools.com.au and enter the school name into "What's on at your school" to see all the service options. If the event service allows guest orders to be placed, users would click on "Buy now without Registering" when they come to purchase the ticket. Otherwise, a registration with Flexischools would be required.
NOTE: Guest orders can only be placed via the desktop website.