Flight Attendants at Southwest Airlines represented by Transport Workers Union of America (TWU) Local 556 ratified a four-year contract that includes a 22.3% raise on May 1, $364 million in retroactive wages. industry-first paid maternal and parental leave, additional compensation for extra time spent on the ground while on duty, higher pay for irregular operations, premium pay for an extended duty day, pay protections for Flight Attendants who experience an on-the-job injury, and provides holiday pay for three more holidays: July 4th, Memorial Day and Labor Day. The contract was approved with 81% of votes in favor.