Spirit Airlines is preparing to file for bankruptcy protection after merger talks with Frontier Airlines broke down, according to people familiar with the matter. The Florida-based budget airline is in advanced discussions with bondholders to hammer out a bankruptcy plan that would have support from a majority of creditors,

Spirit Airlines, a popular choice for low-cost airfare, may be heading for bankruptcy after a possible merger with Frontier Airlines fell through.

Spirit Airlines is considering declaring bankruptcy after a proposed merger with Frontier Airlines fell apart. The Miramar, Florida-based discount airline is expected to file for bankruptcy protection from its debts in as little as 10 days or within weeks,