The Hajj is a magnificent and grand event that brings together several million Muslims from around the world every year. Besides its cultural significance, it also carries a profound philosophy. According to Islamic beliefs, God created the first man and woman and then divided all their descendants into different tribes and nations. People were supposed to know, not to hate each other, and Hajj is a symbol of uniting people of different races, professions, nations, and classes into one community in Kaaba, the House of God. Thus, the pillars of Islam are the ritualistic and attitudinal foundations of cultivating feelings of gratitude, generosity, and unity in Muslims. Organisational culture is an integral aspect of any company’s activities and has many conventions and implications. The emphasis on maintaining a favourable microclimate and enhancing productivity is largely realised through appropriate management practices aimed at supporting organisational culture, which includes several sub-systems (Chatman & O’Reilly, 2016). In the aviation industry, this phenomenon is also expressed openly, and the example of the International Civil Aviation Organisation (ICAO) will be considered. The issues of organisational, safety and professional cultures will be assessed in the context of their roles and influence on operational outcomes. ICAO’s activities will be evaluated by using Hofstede’s framework, the methodology that offers specific parameters for analysing cultural aspects of development (Helmreich & Merritt, 2018). In ICAO, adhering to organisational culture conditions has a positive impact on operational activities and allows its management to maintain high safety performance and job satisfaction, which is crucial parameters in civil aviation (Klimas, 2016). The structure of Hofstede’s model will be examined concerning its core components. Also, ICAO’s safety, organisational and professional cultures will be evaluated, and the interaction between them and safety performance will be determined.