In short, Big data is having a profound positive impact on the hospitality industry by offering new patterns and insights that were hitherto not available. With this new information, businesses are in a better position to provide customised service, enhance customer satisfaction, increase operational efficiency and gain competitive advantage, all of which eventually lead to higher profits for businesses. However, there are some areas that need caution, especially in terms of privacy and intrusion to customers. When these areas are addressed, Big data becomes a game -changer for both businesses and travellers.