FILE - Travelers use the Delta airlines self check-in at Love Field in Dallas, Nov. 27, 2019. Delta Air Lines will be able to continue operating flights at Dallas Love Field for another six years, under a settlement approved by the city council. The agreement, which passed without debate this week, appears to end a long court fight over gates at the city-owned airport near downtown Dallas that is dominated by Southwest Airlines. (AP Photo/LM Otero, file)