“I am so frustrated with delays, but even more so with how they treated people at the airport,” she said. “I don’t know if I will use United again.”Her exasperation was similar to what passengers of Southwest Airlines felt over the winter holidays. Southwest canceled more than 10,000 flights in the four days after Christmas, or about 46 percent of its schedule. On United’s worst day this week, Tuesday, it canceled nearly 800 flights, or about 28 percent of its schedule.The disruptions have left pilots and flight attendants frustrated, too. Many have had to wait on hold for hours to get reassignments after flights were canceled. Some flight attendants slept …
