How long is the Star Alliance Round the World Fare valid?
Your travel may last at least 10 days between the first and the last international sector and up to 12 months after departure on your first flight. There is an exception for travel originating in Europe: Your travel may last at least 10 days between the first and the last intercontinental sector and up to 12 months after departure on your first flight. For passengers originating in Australia, the minimum stay required is 7 days.