Education is a means to equalize opportunities among individuals and to improve their welfare and future income. Nevertheless, there is limited literature assessing the degree of educational inequality in Colombia, and more so regarding public education. In this sense, this paper presents a comparative analysis of inequality of opportunity in academic achievement of two models of public education in Bogotá: traditional and concession. To do this, propensity score matching estimations are used on a dataset collected from a sample of students who took the Saber 11 test in 2012. The results indicate that concession schools exhibit a lower degree of inequality of opportunities compared with traditional public schools.