Complex sentence: This is a list of the busiest international air routes in Australia by passenger traffic from Australian airports that have scheduled international traffic, namely Adelaide, Brisbane, Cairns, Darwin, Gold Coast, Melbourne, Norfolk Island, Perth and Sydney.
Split into simpler sentences: This is a List of the busiest international air routes in Australia by passenger traffic from Australian airports that have scheduled international traffic. Those being Adelaide, Brisbane, Cairns, Darwin, Gold Coast, Melbourne, Norfolk Island, Perth and Sydney.