Wednesday's 1-1 draw in the second leg followed Independiente's 2-1 victory in greater Buenos Aires last week, reports Xinhua news agency.
Brazil under-20 midfielder Lucas Paqueta opened the scoring at the Maracana stadium by tapping in at the far post after a Rever cross.
Teenage midfielder Ezequiel Barco then equalized from the penalty spot after Gustavo Cuellar brought down Maximiliano Meza.
Rever spurned a gilt-edged chance to put Flamengo on level terms when he blasted a shot over the bar from 12 yards in second-half stoppage time.
The result hands Independiente, who also won the competition in 2010, a berth in next year's Copa Libertadores, South America's top club competition.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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