You can even pre-reserve a taxi to gather you in the airport. Pre-booked parking bays can be found within the international and domestic terminals. Though the stations are part of the Sydney Trains suburban network, They're privately owned and operated with the Airport Connection Company and their use is matter https://sydney-international-airp97925.digiblogbox.com/56130271/sydney-airport-taxi-things-to-know-before-you-buy