Multiple web search results report that Spirit Airlines is preparing to shut down or has failed to secure necessary funding following the collapse of a bailout deal involving the Trump administration. The evidence consistently links the potential shutdown to the failure of the $500 million deal.

The web search results confirm that Spirit Airlines was struggling to secure enough funding. One source explicitly mentions the $500 million lifeline faltering, and another notes that bondholders 'balked,' indicating a failure to secure necessary capital from both government and financial backers.

Multiple web search results detail the nature of the negotiations: a potential $500 million rescue deal from the Trump administration, which could involve the federal government acquiring a significant stake (up to 90%) in exchange for cash. The potential use of the fleet for national security missions is also mentioned in the context of government interest.

The web search results confirm that the deal faced opposition and internal struggles. One source notes that the government was considering the bailout, while another mentions that the deal was politically risky and that bondholders were reviewing the situation, indicating internal disagreement and opposition to the full support.