Spirit Airlines, a no frills airline in the US, files for bankruptcy. It lost $2.2 billion since 2020, almost all the profit made since 2006. It was the result of a lot of things happening at once, problems with Pratt and Whitney engines grounding planes, failed $2.9 billion merger with Frontier another no frill airline, when Jet Blue made a $3.9 billion offer that had less chance to get by antitrust concerns. The 2020-2024 period was one in which people scrambled to travel and the bigger airlines Delta, United, Southwest were in a better position with their international networks, frequent flyer program and credit cards, and more routes and planes to capitalize on this leaving Spirit behind.