Ride-sharing - There are services from Uber and Ola that pick passengers up in front of the terminals.
Bus - Line 400 from Sydney Buses (Tel +61 131 500) travels between Bondi Junction and Burwood and stops at the Arrivals level of terminals 1 and 3. It also stops at Arncliffe, Mascot, Eastgardens, Maroubra, Kingsford, Randwick and Waverley. The trip to the city centre takes about 35 minutes. Route 420 runs to Burwood, Kingsgrove, Mascot and Eastgardens.
Redy2Go (Tel +61 1300 246 669 / 295 340 820) and Mozio (Tel +1 855 980 5669) provide door-to-door transportation to several destinations and hotels in Sydney, with desks in the Arrivals Hall of terminals 1 and 2.
Train - The Airport Link (Tel +61 131 500) runs from 4:20 am to 1:00 am to Sydney Central Station in 13 minutes, with a frequency of 10 min. Intermediate stops include Mascot, Green Square, Museum, St. James, Circular Quay, Wynyard and Town Hall. The airport station is found on the northern end of Terminal 1. To use this service you will need an Opal Card, which you can get at the station itself or at the Relay or WH Smith stores.