Rio de Janeiro has two international airports:
Aeroporto Internacional Tom Jobim (Galeão) -- GIG
Aeroporto Santos Dumont -- SDU
The trimester program is hosted by the Instituto Nacional de Matemática Pura e Aplicada (IMPA), located in the south zone of Rio de Janeiro.
For participants who need an invitation letter, for visa purposes or otherwise, IMPA can provide one on request