Air-India Hong Kong Milestones 1954 Weekly flight to Hong Kong, via Calcultta and Bangkok launched. First Air-India booking office opened on Ice House Street, Central. 1955 Hong Kong service extended to Tokyo. The service was delinked in 1987. 1960 Delhi added to the Bombay-Hong Kong route. 1961 Boeing 707 introduced. 1970 Bombay/Delhi-Hong Kong flights increased to five times a week. 1980 Boeing 747s introduced. 1991 Direct Bombay/Delhi-Hong Kong flights introduced, bypassing Bangkok. 1997 Twice weekly services to Osaka continues. 2003 Launch of India-Shanghai flight.