This paper aims to explore the flight choice behaviour of business passengers; in particular, we explored the potential differences between those who work in small and medium enterprises (SMEs) and those in non-SMEs. Discrete choice models with attribute non-attendance data were used to model flight choice behaviour. Results showed that fewer flight service attributes were significant on flights between Sydney, Melbourne and Brisbane due to shorter flight duration but ticket flexibility features were considered significant by business passengers. Self-funded business passengers were more price-sensitive and flight service attributes were considered differently from ticket flexibility attributes by business passengers.