Domestic air traffic has grown by 21.79 per cent from January-July YOY, according to a latest report by Directorate General of Civil Aviation (DGCA). Passengers carried by domestic airlines during January-July 2018 were 800.40 lakhs as against 657.21 lakhs during the corresponding period of previous year. The passenger load factor in the month of July has shown a declining trend compared to previous month primarily due to the end of tourist season, the report said.