Barry Biffle has endured more than his share of turbulence since becoming president of Frontier Airlines in April 2014.
The company got deluged with complaints and poor on-time arrival numbers to start off 2015. CEO David Siegel resigned suddenly in May that year. And Biffle was left to pilot the day-to-day operations of the Denver airline after being there for only 13 months.
Since that time, however, he's weaved a remarkable turnaround story. The company that went bankrupt in 2008 and was bought...