Southwest Airlines passengers stand in line at the ticketing/checking counter at Hobby Airport on Thursday, July 21, 2016, in Houston. Southwest Airlines struggled to recover Thursday from a massive computer outage, as several hundred more flights were canceled or delayed around the country. (Brett Coomer/Houston Chronicle via AP)
Southwest Airlines passengers stand in line at the ticketing/checking counter at Hobby Airport on Thursday, July 21, 2016, in Houston. Southwest Airlines struggled to recover Thursday from a massive computer outage, as several hundred more flights were canceled or delayed around the country. (Brett Coomer/Houston Chronicle via AP) Brett Coomer AP
Southwest Airlines passengers stand in line at the ticketing/checking counter at Hobby Airport on Thursday, July 21, 2016, in Houston. Southwest Airlines struggled to recover Thursday from a massive computer outage, as several hundred more flights were canceled or delayed around the country. (Brett Coomer/Houston Chronicle via AP) Brett Coomer AP