This study investigates the phenomenon of elasticity of demand in higher education and how tuition elasticity can affect enrolment among international students in comparison to national students in publicly funded universities in Ontario. This study examined the relationship by categorizing universities into three categories (research intensive, teaching intensive, and comprehensive universities), and by sorting demanders (students) into two groups: national students and international students. The study also examined international-national students’ ratio with respect to tuition fees at each category of universities. The results allow academic leaders and policy makers to predict the reaction of national and international students as a result of changing tuition fees. Examining tuition elasticity of demand in Ontario’s higher education market can help academic leaders respond effectively to the proposed federal policy that international students should be doubled by 2020.