Online education continues to surge in popularity. However, terms used to describe and define online education vary. In addition to unclear definitions and understanding, online education practice comes with challenges. While educational institutions see its value, they struggle with implementation. Undoubtedly, online education is disruptive. A system by itself, it brings change with complex problems, especially with the evolving nature of technologies. Therefore, a systems thinking perspective is needed to analyze and understand it. This conceptual article explores online education as a complex system, it describes its components, and it ends with a discussion on the interrelation between them.