Background: Engagement in volunteer activities is an experience that many students may not prioritize due to lack of time and interest. Purpose: This research examines the use of International Service Learning (ISL) as a potential platform to positively change student perceptions of volunteerism. Methodology/Approach: Multiple methods (interviews, journals, observations) were used to measure ISL impacts on 13 San Francisco State University students who participated in an ISL experience in Costa Rica in Spring 2017. Data were analyzed based on five processes of transformational learning, as outlined by Naude. Findings/Conclusions: The results show that a change in volunteer perspective was evident in students as a result of the ISL experience. Students' motivation evolved from desirability to travel abroad to an apparent sense of stewardship and desire to give back. Implications: Participating in ISL programs can have a profound impact on students. Including international travel components may be a useful tool to entice the millennial student to participate in SL programs. Participants' regular reflective activities are proven to be crucial to the process of enhancing ISL.