Spirit to halt all flights as of early Saturday

Spirit Airlines is set to announce in the coming hours that that it will halt flying as of 3 am ET Saturday, according to two sources familiar with its plans, making it the first significant US airline to halt operations in nearly 25 years.

​ Spirit Airlines is set to announce in the coming hours that that it will halt flying as of 3 am ET Saturday, according to two sources familiar with its plans, making it the first significant US airline to halt operations in nearly 25 years. Read More Breaking News, Latest News and Videos | CNN