An airport rail link is a service providing passenger rail transport between an airport and a nearby city. Direct links operate straight from the airport terminal to the city, while other links require an intermediate use of a people mover or shuttle bus. Advantages for the passenger include faster travel times and easy connections with other public transport. Advantages for the airport include increased patronage and enhanced accessibility for staff. Additionally, authorities have benefitted from less highway congestion, less pollution, and more business opportunities.

An airport bus, or airport shuttle bus or airport shuttle or Shuttle Bus is a bus used to transport people to and from, or within airports. These vehicles will usually be equipped with larger luggage space, and incorporate special branding. They are also commonly painted with bright colours to stand out among other airport vehicles and to be easily seen by the crews of taxiing aircraft when negotiating the aprons.