The ways in which learning environments are spatially conceived have undergone a significant transformation from "space" as "a realm without meaning" into "place" as "a meaningful location." In this context, the relevance of online interactions and the significance of online space and place in facilitating positive learning are worth exploration. Drawing on a nationwide survey involving 1010 international students at 41 Chinese HEIs in the COVID-19 pandemic, this research applied k-means cluster analyses which produced a typology of international students' perceived online educational environments and another typology of their online interpersonal interactions. The logistic regression results indicated the predictive power of both typologies on ability development. The discussion highlights the importance of considering spatial dimensions of international students' online learning. Promoting international students' online interactions and supporting inclusive, engaging learning experiences require both space for hosting and place enabling intercultural learning. The research holds implications for the sustainable development of online international education in the post-COVID-19 era.