This eBook charts the technological and strategic evolution of airline distribution, from the early days of travel agents and GDS to today’s NDC-powered platforms. It examines the role of OTAs, metasearch engines, and airline websites in reshaping how flights are marketed and sold. The guide highlights the shift in consumer expectations toward personalization, price transparency, and digital convenience. It also explores how airlines are leveraging direct channels, data analytics, and automation to reduce costs, improve margins, and create seamless customer experiences. For professionals in airline distribution, marketing, or digital transformation, this eBook is a concise yet comprehensive overview of the past, present, and future of airline retailing.