This paper evaluates the effectiveness of Collaborative International Online Learning (COIL) in cross-cultural business curricula, where students collaborate within multinational and multicultural teams without the need to travel. The COIL offers an innovative alternative to traditional study abroad programs, providing a global learning experience through virtual platforms. This approach enhances the internationalization of business education and equips students with the competencies needed to navigate global challenges, fostering a broader understanding of diverse cultural perspectives. The study focuses on the collaborative efforts between business students from a U.S. university and a Polish university during the COVID-19 pandemic. It examines the processes, tools, and outcomes of this online global collaboration, demonstrating how COIL facilitates meaningful interactions and deepens students’ appreciation for diverse viewpoints. This study also discusses the challenges encountered during the implementation of COIL, such as technological barriers and differences in communication styles, and how these obstacles were addressed to ensure successful collaboration. The findings highlight COIL’s role in enriching the learning experience, developing effective global collaboration strategies, and preparing students for the complexities of working in virtual international teams.