• Spirit Airlines has ceased all operations due to financial turbulence.
• US Transportation Secretary Sean Duffy announces a comprehensive industry-wide rescue package.
• Nine major US carriers will support Spirit passengers with capped ticket prices and rescue fares.
• Thousands of Spirit employees are left without jobs, with some carriers offering fast-track hiring.

The shutdown of Spirit Airlines may indicate a significant shift in the US aviation landscape, with potential long-term implications for low-cost travel and airline consolidation. The industry relief package suggests a coordinated effort to mitigate the impact on passengers and employees, which could set a precedent for future airline failures.