The latest World Air Transport Statistics (WATS) from the International Air Transport Association (IATA) show that 4.4 billion passengers traveled by air in 2018. Released on 31 July, the statistics also found that the air transport industry recorded a record load factor of 81.9% last year. Passenger figures of 4.4 billion represented a 6.9% increase from the year previous, an additional 284 million trips by air. WATS also recorded fuel efficiency as improved by 12% from 2010 figures, while 22,000 city pairs are connected by direct flights-double the number of city pairs connected in 1998.
Collected and summarized from the source below by Quynh Hoa https://airlines.iata.org/news/wats-44bn-traveled-by-air-in-2018%C2%A0