Spirit Airlines Inc (NYSE:SAVE) is reportedly in discussions with bondholders regarding the terms of a potential bankruptcy filing. The budget airline is exploring restructuring options following a failed merger with JetBlue Airways Corporation (NASDAQ:JBLU). What Happened: Spirit is considering a Chapter 11 filing as it grapples with significant financial challenges. The airline is also looking into restructuring its balance sheet through an out-of-court transaction, reported The Wall Street Journal on Thursday, citing people familiar with the matter. However, according to the report, recent …