Spirit Airlines stock tumbled in premarket trading Wednesday following a report that said the ultra-low-cost carrier was preparing to file for bankruptcy protection. The filing could come within weeks, The Wall Street Journal reported, adding that merger ...

Spirit Airlines shares are plunging more than 60% in premarket trading on a report that the budget carrier is getting ready to file for bankruptcy protection after revived merger talks with Frontier Airlines parent Frontier Group Holdings collapsed.

Spirit Airlines is now reportedly in advanced talks over a possible bankruptcy filing following a failed merger and continued financial struggles, The Wall Street Journal reported Tuesday evening. The company had been exploring a merger with another low-cost airline,