Disinvestment-bound Air India is hoping to garner a revenue of over Rs 90 crore a month from the lucrative New Delhi-San Francisco sector, in which it operates nine flights a week. The national carrier added three flights on this route on March 25, taking the total number of non-stop services to nine a week. The revenue from Air India's Delhi-San Francisco sector was about Rs 60-65 crore per month and it went up to Rs 71 crore in December last year. It was launched in December 2015. "We expect a net addition of Rs 25 crore from this month onwards with the three new services, taking the total number of flights operating on this route to nine (a week)," an airline source said.