To get from La Paz Airport to your destination: Aside from renting a car or taking a taxi, a bus can take you to La Paz' main bus terminal on Plaza Antofagasta at Avenida Uruguay.  Bolivian trains are economical but slow. 
NOTE:  The notorious ALPEA highway from El Alto to La Paz received $35M financing for improvements aimed to reduce accidents.

In Spring 2014, the first line of the new cable car system opened spanning 2.6 km  (the highest in the world), later followed by a second line (7.3 km - La Paz to El Alto city:  Three more lines are under contract.  The cable cars will operate 17 hrs/day able to carry 18,000 persons/hr (according to news)  and is cheap.

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