This paper analyses the determinants of national student mobility under the unified system of admission in Russia and evaluates the barriers which still limit educational mobility. It is argued that even with the Unified State Examination (USE) and the decreased transaction costs of applying to universities, student interregional national mobility is directed towards more developed regional educational markets and richer regions, but is still limited due to the financial constraints in the absence of the additional student support. Russia is an interesting case, because it consists of regions with highly variable socio-economic development and it represents local higher education markets with different levels of competition between universities, which may influence the decision to move. USE was intended to mitigate against these differences, and for political reasons under USE such differences are not considered the main barriers of access to higher education. However, this study takes into account the importance of the institutional characteristics of regions in student mobility.