The Chinese word "航班" is formed by combining the character "航" (háng), which conveys the idea of navigation or flight, typically associated with air or sea travel, with the character "班" (bān), which denotes a scheduled or regular service, such as a shift or class. Together, they create a compound word where "航" specifies the domain of aviation, and "班" indicates the planned, recurring nature of the service, thus directly representing the concept of a scheduled flight or airline service.