Social origin affects not only access to higher education but also how students proceed through higher education. Based on the argument that an advantageous family background facilitates linear study trajectories through parents' provision of cultural and economic resources, this article investigates study trajectories in Germany and the United States, assessing the institutional structures as an intermediating factor. We reconstruct study trajectories of bachelor-degree-seeking students using sequence analysis based on two high-quality panel data sets (U.S. Beginning Postsecondary Students Longitudinal Study and the German National Educational Panel Study). The findings reveal that study trajectories are more complex overall and shaped by social origin in the United States. In both countries, study trajectories differ by higher education institution type. We conclude that not only are access pathways to higher education shaped by the institutional context of higher education systems but also that study trajectories and the disparities structured by socioeconomic background are equally institutionally embedded.