>> trace: let's get to jonathan serrie live at heartsfield jackson airport. jonathan? >> southwest cancelled 91 flights today. that's about 2% of its total scheduled flights for the day. an improvement from yesterday when the airline cancelled 400 flights and sunday when the figure reached 1,000. over the weekend, frustrated passengers posted videos showing long lines at kiosks and empty baggage carousels. >> when we woke up, our flight that was supposed to be at 3:00 got pushed back to 12:00 and then to 5:00 all in the same day. >> initially the airline blamed the disruptions on bad weather and air traffic control issues. the f.a.a. pushed back. the disruptions began after the union representing 9,000 southwest high lots asked a