An airport bus or airport shuttle is a bus that is used to transport people to and from or within airports. These buses are usually spacious to accommodate the most number of people comfortably and a larger luggage space.
There are different types of airport bus transfers in Australian airports.

Airside transfer is used for transport between aircraft and a terminal when a jet bridge is not available for long distance transfers or for safety reasons. These buses transport passengers from the aircraft to the arrival gate or from the departure gate to the aircraft. These buses typically do not have seating, or have very minimal seating to hold the most number of passengers while they stand and hold onto overhead rails.

Terminal transfer is used for transport between terminals that are far from each other. Usually, these buses do not require a fare from the passengers as these are part of airport services.

Car park transfer is used for transporting people from car parks to the airport when the affiliated car park is relatively far from the terminal building. These are usually free and regularly make shuttle runs between terminals and car park stands.
There are also third party companies that provide airport shuttle service with pick-up and drop off points near the airport terminal. Some companies transfer people from their homes to the airport when hired privately. These usually have varying specifications for transporting groups of people over long distances to or from the airport.

There are some airports that provide interurban bus transport services to passengers. These buses have different facilities installed on board and amenities for the comfort of the passengers. Most of these companies install televisions, reclining chairs, and even a small toilet for passenger comfort. Like most modern public transports, these busses leave on schedule and usually arrive to their destinations on time, depending on the road and traffic conditions.

In order for a person to operate a bus or coach, the person will need an excellent driving record and the appropriate license required to work in the industry. Australia's States and Territories generally have their own license requirements with drivers having to provide demonstrations of their skills and training in bus driving.

There are a number of interurban bus transport associations in Australia especially in the States and Territories. It is recommended to check their websites for information regarding the quality of service each bus company has before going on a trip.

Tips when taking the airport bus

• Whether you are traveling between terminals or from the gate to the aircraft, it is always a must to check your belongings for safety. Despite the added security in airports, there are still small thefts that have been going on.
• There will always be space inside the bus for everyone. Do not be rude to other passengers and let them sit especially if they found the space first.
• When hiring a private bus for home-airport transfer, make sure that the company is reliable and has reasonable rates.