The purpose of this study was to examine the structural relationships between students' learning outcomes and the factors that relate to these outcomes, including college environment, class participation, student-faculty interaction, and integration of experiences. The study focused on the impact of college environment and classroom participation on learning outcomes, and on the mediating effect of integration of students' collegiate experiences. Using data from 18,551 students in 32 universities in Korea, this study employed structural equation modeling to investigate the structural relations among the variables. It was found that college environment, student-faculty interaction, and class participation have significant effects on improving students' learning outcomes and were indirectly associated with learning outcomes through integration of experiences. Finally, we discussed the implications for future research and policy development in relation to learning outcomes of college students in Asia.