United Airlines will deploy its Boeing Dreamliner 787-9 aircraft on the route.Airline major United Airlines on Thursday announced it will introduce a new daily nonstop seasonal service between New Delhi and San Francisco from December 7, 2019 -- subject to government approval."United's new route to San Francisco will be the airline's third daily nonstop service from India in addition to the existing daily, year-round services from Mumbai and New Delhi to New York or Newark," the airline said in a statement.The airline will deploy its Boeing Dreamliner 787-9 aircraft on the route.United has served India since 2005.