Key lawmaker quizzes airlines on delays, worker shortages


              FILE - In this Wednesday, June 16, 2021, file photo, Southwest Airlines ticketing agent helps a traveller at the check-in counter at Denver International Airport in Denver. Sen. Maria Cantwell, D-Wash., who chairs the Senate Commerce Committee, sent letters Friday, July 16, 2021, to the CEOs of American, Southwest, Delta, JetBlue, Republic and Allegiant. She wrote that she is concerned by reports that have highlighted the role of worker shortages in a surge of delayed and canceled flights. (AP Photo/David Zalubowski, File)
            FILE - In this Tuesday, May 25, 2021, file photo, travelers watch a JetBlue Airways aircraft taxi away from a gate at Ronald Reagan Washington National Airport+ahead of Memorial Day weekend, in Arlington, Va. Sen. Maria Cantwell, D-Wash., who chairs the Senate Commerce Committee, sent letters Friday, July 16, 2021, to the CEOs of American, Southwest, Delta, JetBlue, Republic and Allegiant. She wrote that she is concerned by reports that have highlighted the role of worker shortages in a surge of delayed and canceled flights. (AP Photo/Patrick Semansky, File) FILE - In this Thursday, Feb. 18, 2021, file photo, a Delta Airlines pilot wears a face mask to help prevent the spread of the new coronavirus as he walks through a terminal at Hartsfield-Jackson International Airport in Atlanta. A key senator is asking six U.S. airlines, including Delta, to explain the high rates of delayed and canceled flights this summer, and she's asking whether there are labor shortages despite the airlines getting billions in federal aid to keep workers on the job. (AP Photo/Charlie Riedel, File)