Standing at up to 200ft high, and crossing the river between the Greenwich Peninsula and the Royal Docks, it has also become a destination its own right.
With a journey time of around 10 minutes, the cable car makes it easier to travel between The O2 and ExCeL exhibition centre, and between local communities on both sides of the river.
The terminals are close to existing Tube and Docklands Light Railway services, and to bus and river boat connections.
The service is accessible to wheelchair users and cyclists and is open seven days a week.
The cable car is sponsored by Dubai-based airline Emirates in a 10-year deal, signed in 2011, worth more than £36m. See the sponsorship contract.
The project also received funding from the London 2007 to 2013 European Regional Development Fund (ERDF), managed by the Greater London Authority on behalf of the Department for Housing, Communities and Local Government.
Emirates Air Line's funding and fare structures are aimed at making sure the scheme covers its costs with no need for public subsidy.