Some lawmakers think Congress and the White House may not reach a deal until September.
Major U.S. airlines that received portions of $25 billion in payroll assistance were required by the U.S. Transportation Department to maintain minimum flights through Sept. 30, but the government could opt to extend those requirements. American received $5.8 billion in payroll assistance.
Several airlines have been privately warning lawmakers they would be forced to suspend service to some smaller airports without assistance.
American will halt flights to Del Rio, Texas; Dubuque, Iowa; Florence, South Carolina; Greenville, North Carolina; Huntington, West Virginia; Joplin, Missouri; Kalamazoo-Battle Creek, Michigan; Lake Charles, Louisiana; New Haven, Connecticut; New Windsor, New York; Roswell, New Mexico; Sioux City, Iowa; Springfield, Illinois; Stillwater, Oklahoma, and Williamsport, Pennsylvania starting Oct. 7.