Air India will reduce frequencies on three U.S. routes from June 21 through at least July 15.
Delhi-San Francisco will drop from 10-times weekly to daily; Delhi-Chicago O'Hare will be reduced from daily to three-times weekly; and Delhi-Washington Dulles will go from five-times weekly to three-times per week.
The moves come as the carrier continues enhanced safety checks on its widebody fleet following the June 12 Boeing 787 crash in Ahmedabad, which killed 241 passengers and crew and 29 people on the ground.
India's civil aviation authority has thus far cleared 26 of the airline's 33 Dreamliners following those checks. But Air India has also decided to undertake checks on its fleet of Boeing 777s.
The safety checks, coupled with increased flight times on many routes due to restrictions on Indian carriers overflying Pakistan, led Air India to cancel 83 international flights between June 13 and June 18.
Overall, the carrier will reduce its international flight schedule by 15% during the June 21 to July 15 time frame to improve reliability.
"Air India apologizes to the passengers affected due to these curtailments and will inform them in advance and make its best efforts to accommodate them on alternate flights. Passengers will also be offered a choice to reschedule their travel without any cost or to be given full refund, as per their choice," the airline said.