A United Airlines plane approaches the runway at Denver International Airport on March 23, 2026. Al Drago | Getty Images United Airlines flight attendants approved a new five-year labor contract with 31% average raises to base pay by August and other improvements, marking the last of the major carriers with unionized flight crews to reach a deal post-Covid. The labor deal would give United's roughly 30,000 flight attendants their first raises in close to six years. The company and the flight attendants' union reached a preliminary deal in March. Crews had rejected a contract last year. The union said the contract won 82% approval from the flight attendants, with close to 90% of them voting. "The contract will immediately change the lives of United Flight Attendants, especially our thousands of new hires who have been hired since the pandemic," said Ken Diaz, president of the United chapter of the Association of Flight Attendants.…