- Spirit Airlines Stock Sinks on Report Frontier Merger Talks Break Down Investopedia
- Spirit Airlines stock plunges 60% as company reportedly preps bankruptcy filing Yahoo Finance
- Spirit prepares for bankruptcy filing after failed Frontier talks: report Fox Business
- Exclusive | Spirit Airlines Moves Toward Bankruptcy Filing After Frontier Drops Merger Bid The Wall Street Journal
- Spirit Airlines stock would be cancelled under debt restructuring deal, company says South Florida Sun Sentinel