The new crew guidelines will include more staff training, use of the latest device to tie up a violent passenger and the banning of passengers with a history of unruly behavior.
Airlines will likely suffer more disruptions like the one that grounded about 2,000 Delta flights this week because major carriers have not invested enough to overhaul reservations systems based on technology dating to the 1960s.
The third-largest U.S. carrier by passenger traffic also said passenger unit revenue would fall between 6.5 percent and 7.5 percent from a year earlier.
A shortage of staff and a surge in air travelers have created a nightmare scenario for the TSA, with airport wait times in places such as Chicago stretching beyond two hours.
According to the latest Switchfly Reward Seat Availability Survey of more than 7,000 domestic and international flights that are scheduled from June through October, 76.6 percent offer reward seats.