Can you buy travel insurance after booking a flight?

Yes, you can purchase your Bali travel insurance after you book your flight, and even if you've already left Australia.  If you're concerned about protecting the money that you've paid for your flights, hotels and tours, you can consider taking out travel insurance with cancellation cover as soon as you've paid your deposits. 

Cover is subject to the policy terms, conditions, limits and exclusions in the Product Disclosure Statement (PDS).