It will take about 10 hours and 20 minutes.
The flight distance from Johannesburg, South Africa to Perth, Australia is: 5,173 miles or 8,325 km.
10 hours
The length of flight totally depends on where you are leaving from.
how long is a flight between Johannesburg to brisbane?
Australia to South Africa » Qantas offer a direct flight, Perth to Johannesburg, 8325km in 11hr 30min.
11 hours
The flight time is not different, and if it is, that is because of the direction the plane is flying. There is a jet stream (strong wind) that blows from the East (Johannesburg) to the West (Perth), so it would seem to make the plane go faster.
11 hours
how long flight perth to koi samui
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to where
Flight time from Perth, Western Australia to Penang, Mallaysia