ABSTRACTEducation work denotes a relational encounter among individuals positioned along axes of intersecting differences. Transnational education (TNE) offers a particularly intriguing context for conceptualising borders and power relation in knowledge production. Drawing upon empirical work conducted in the UK and Hong Kong, this paper interrogates the notion of border in TNE and analyses how ‘flying faculty’ involved in UK TNE programmes in Hong Kong perceive, manage and experience socio-cultural, institutional and other borders. We contextualise the personal experiences of these ‘educators sans frontières’ in the broader power geometries in which they are embedded. Our findings reveal the presence and strength of diverse borders in the TNE field. These borders are contexts of control and capital accumulation, where existing power relation is being negotiated and contested on a daily basis. We also highlight the rapidly changing power geometries in the field marked by the rise of the new powers, like Hong Kong, in the international higher education system. The paper ends by calling for more appreciation and efforts in harnessing the generative and creative potential of borders. Exploring borders as contexts of exchanges and co-production would contribute to more equitable partnerships among diverse stakeholders in the expanding TNE sector.