Southwest’s operations are steady after three days of disruptions.

Southwest’s operations appeared to return to normal on Thursday after three days of widespread flight delays and cancellations caused by technological problems. As of midmorning, the airline had canceled only about 1% of its scheduled flights for the day, though 10% of its flights were delayed, according to FlightAware, a flight tracking service. About half of Southwest’s scheduled flights on Tuesday and Wednesday were delayed. On Monday, more than 1,500 Southwest flights ran late, accounting for about a quarter of all flight delays within the United States. The disruptions infuriated thousands of passengers, many of whom complained on social media. The turmoil began on Monday night when a problem with a weather data provider prevented Southwest from safely flying its planes temporarily. The issue was resolved, but the airline faced a technological issue of its own on Tuesday. That was fixed within hours, but nevertheless had a cascading effect on flights that day and the next. The airline said it was investigating the outages, but had no reason to believe they were caused by a breach. The flight delays and cancellations took place during a generally slow part of the week, but they come as overall travel is picking up. Southwest’s troubles seemed to be subsiding, but Thursday wasn’t without problems. Southwest and Delta were among many companies whose websites were briefly inaccessible early in the day because of problems at an internet firm that provides services to many businesses.<br/>