This page displays the approximate flight duration time for a non-stop flight. The actual travel time may differ depending on the type and speed of the aircraft. Also note that the calculated distance between the two cities of Detroit and Sydney is the direct air distance (distance as the crow flies). Traveling on land involves larger distances.
Time difference between Detroit and Sydney
USA and Australia air distance
Air distance from Detroit to cities near Sydney:
latitude: 42° 23' North
longitude: 83° 05' West
latitude: 33° 55' South
longitude: 151° 17' East