This study aims to conduct a comparative analysis of the legislation, resolutions, and practices concerning regularization procedures and the recognition of fundamental rights (healthcare and education) of Venezuelan migrants between 2015 and 2019 in three host countries: Colombia, Argentina, and Chile. The results show, first, a significant heterogeneity in different legal responses in terms of the possibility of naturalization, application requirements, and the recognition of rights, for example. Second, the analysis focused on three reasons that explain the heterogeneity. Third, the study confirms three characteristics of reception strategies, which considerably affect the social integration of Venezuelan nationals in host countries.