Sydney Airport is one of the oldest continually operated airports in the world and the busiest airport in Australia. It is located about 8 kilometres south of Sydney's city centre in the suburb of Mascot.
Three passenger terminals at Sydney Airport are:
T1: International Terminal is used for international flights. It is open every day from 3am to 11:30pm. Customs are opened for departures passenger processing at 4am daily.
T2: Domestic Terminal is used by domestic and regional airlines including Jetstar, Virgin Blue and Tiger Airways. T2 Domestic Terminal is open every day from 4am to 11pm.
T3: Qantas Domestic Terminal is used for Qantas domestic flights. It is open every day from 4:45am to 10pm.
Looking for help at Sydney Airport? You'll find help desks in both the arrival and departure halls of T1 while a commissionaire's desk located in T3 is available to passengers needing wheelchair or other assistance.
For international passengers, trolleys are located in the baggage reclaim hall following Customs processing, and are free of charge.
Transport services such as buses, taxis, car hire, rail and shuttle bus services are conveniently located at Sydney Airport.
The Opal card is an easy, convenient way of paying for your travel on public transport in Sydney. It's the only card you'll need to get around on all public transport including trains, ferries, buses and light rail. For more information, visit www.opal.com.au
TripView displays Sydney train, bus, ferry and light rail timetables, showing your next services. By TripView Pty Ltd.
Download TripView from the App Store
Download TripView from Google Play
Download TripView from Windows Phone Store
Sydney's main terminus for local and regional trains and buses is Central Station at Railway Square, close to Chinatown.
Cruise ship terminals
There are two cruise ship terminals in Sydney Harbour. The main Overseas Passenger Terminal is on Circular Quay’s western side in the historic Rocks and opposite the Sydney Opera House. The White Bay Cruise Terminal is near Anzac Bridge and is best accessed from James Craig Road in Rozelle.
The above information are all from https://www.sydney.com/travel-information/transport