How Spirit Airlines’ First Bankruptcy Sowed the Seeds of Its Collapse
September 2026
When Spirit Airlines (“Spirit”) emerged from Chapter 11 bankruptcy on March 12, 2025, the ultra-low-cost carrier appeared to have secured a lifeline. Its restructuring plan was broadly supported by creditors, confirmed by the bankruptcy court, and executed in under four months. But just five months later, Spirit was back in bankruptcy court. Spirit’s rapid return to insolvency, and its ultimate decision to cease operations abruptly in May 2026, raise a fundamental question of whether this was an avoidable outcome.
A Balance Sheet Fix for an Operational Problem?
When Spirit filed for Chapter 11 on November 18, 2024, in the Southern District of New York, the case was a narrowly tailored balance sheet restructuring. It commenced the case with a plan to implement a “swift” financial restructuring with the support of holders of 80% of its debt that would cancel existing convertible and senior secured notes, replace those notes with $840 million in new exit secured notes, and distribute reorganized equity to creditors through a $350 million rights offering1.
What the plan conspicuously omitted were any operational changes. There was no fleet rationalization, no renegotiation of collective bargaining agreements, no attempt to shed costly aircraft leases, and no meaningful cost reduction. From an operational perspective, Spirit intended for everything to be “business as usual” during the course of the Chapter 112.
At the time, Spirit attributed its problems to external forces, including shifting customer preferences, excess leisure travel capacity, major carriers encroaching on Spirit’s turf with basic economy products, and the well-documented manufacturing defects in Pratt & Whitney’s engines that had grounded a significant portion of its fleet3. The theory behind the first plan was that if Spirit could reduce its debt burden and recapitalize, it could weather the storm and compete its way back to profitability.
Spirit’s Emergence from Its First Filing and Second Filing
The same industrywide headwinds that drove Spirit into its first bankruptcy persisted through the summer of 20254. Because the first case left almost every operational issue unaddressed, Spirit was vulnerable, having failed to put any significant protections in place through the first bankruptcy.
The Pratt & Whitney engine crisis escalated5. AerCap Ireland Limited (“AerCap”), Spirit’s largest aircraft lessor, sent termination and default notices covering 36 aircraft on August 25, 20256. At the same time, one of Spirit’s credit card processors imposed accelerated collateral requirements that further restricted Spirit’s liquidity7. Revenue collapsed with an abruptness that went beyond anything historical industry patterns could have predicted8. On August 29, 2025, barely five months after emerging from the first case, Spirit filed for Chapter 11 again.
Spirit’s Emergence from Its First Filing and Second Filing
The same industrywide headwinds that drove Spirit into its first bankruptcy persisted through the summer of 20254. Because the first case left almost every operational issue unaddressed, Spirit was vulnerable, having failed to put any significant protections in place through the first bankruptcy.
The Pratt & Whitney engine crisis escalated5. AerCap Ireland Limited (“AerCap”), Spirit’s largest aircraft lessor, sent termination and default notices covering 36 aircraft on August 25, 20256. At the same time, one of Spirit’s credit card processors imposed accelerated collateral requirements that further restricted Spirit’s liquidity7. Revenue collapsed with an abruptness that went beyond anything historical industry patterns could have predicted8. On August 29, 2025, barely five months after emerging from the first case, Spirit filed for Chapter 11 again.
When Spirit made its second Chapter 11 filing, it made clear that it was taking a fundamentally different approach to its second round of restructuring9. In the second case, Spirit moved aggressively on opportunities to cut costs that it had failed to do in the first case. Spirit reached a settlement with AerCap in September 2025, resolving litigation over AerCap’s August notice of termination and right-sizing the airline’s current and future aircraft leases with the lessor10. In December 2025, the court approved new collective bargaining agreements with two of Spirit’s unions, which would generate $100 million in annual labor savings11. The airline also sold two preferential gates at Chicago’s O’Hare International Airport for $30 million and continued implementing other operational efficiencies12.
When Spirit made its second Chapter 11 filing, it made clear that it was taking a fundamentally different approach to its second round of restructuring9. In the second case, Spirit moved aggressively on opportunities to cut costs that it had failed to do in the first case. Spirit reached a settlement with AerCap in September 2025, resolving litigation over AerCap’s August notice of termination and right-sizing the airline’s current and future aircraft leases with the lessor10. In December 2025, the court approved new collective bargaining agreements with two of Spirit’s unions, which would generate $100 million in annual labor savings11. The airline also sold two preferential gates at Chicago’s O’Hare International Airport for $30 million and continued implementing other operational efficiencies12.
Final Approach: A Timeline of Spirit’s freefall Into Insolvency
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Final Approach: A Timeline of Spirit’s freefall Into Insolvency
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The Final Unraveling
Even with its more aggressive second restructuring, Spirit could not outrun its circumstances. By February 2026, the airline’s financial position had deteriorated. Total assets fell to approximately $5.66 billion against $8.01 billion in liabilities, leaving a net deficit of roughly $2.35 billion13. Monthly operating losses mounted up, and net losses increased in kind, reaching $133.3 million in February alone14.
Spirit, February 2026:
Total Assets vs Liabilities
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Source: In re Spirit Aviation Holdings, Inc., No. 25-11897 (SHL), Global Notes and Statement of Limitation, Methodology, and Disclaimers Regarding the Monthly Operating Report for February 2026, Dkt. No. 959, at 19.
The Final Unraveling
Even with its more aggressive second restructuring, Spirit could not outrun its circumstances. By February 2026, the airline’s financial position had deteriorated. Total assets fell to approximately $5.66 billion against $8.01 billion in liabilities, leaving a net deficit of roughly $2.35 billion13. Monthly operating losses mounted up, and net losses increased in kind, reaching $133.3 million in February alone14.
Spirit, February 2026:
Total Assets vs Liabilities
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Source: In re Spirit Aviation Holdings, Inc., No. 25-11897 (SHL), Global Notes and Statement of Limitation, Methodology, and Disclaimers Regarding the Monthly Operating Report for February 2026, Dkt. No. 959, at 19.
Negotiations with investment firm Castlelake offered a potential escape route through a takeover, and Spirit explored a $500 million U.S. government investment to bail it out15. However, once an impasse was reached on the government’s investment terms — which was swiftly followed by a massive spike in fuel prices after the U.S. military’s strikes on Iran it became clear that Spirit had run out of time to finance its way out of its situation16.
On May 2, 2026, Spirit announced it would cease all operations and commence an orderly wind-down, funded through cash collateral arrangements and up to $125 million in additional debtor-in-possession draws17. Two days later, Spirit stopped filing reports with the SEC.
Negotiations with investment firm Castlelake offered a potential escape route through a takeover, and Spirit explored a $500 million U.S. government investment to bail it out15. However, once an impasse was reached on the government’s investment terms — which was swiftly followed by a massive spike in fuel prices after the U.S. military’s strikes on Iran it became clear that Spirit had run out of time to finance its way out of its situation16.
On May 2, 2026, Spirit announced it would cease all operations and commence an orderly wind-down, funded through cash collateral arrangements and up to $125 million in additional debtor-in-possession draws17. Two days later, Spirit stopped filing reports with the SEC.
Lessons from Spirit’s Collapse
Spirit’s back-to-back bankruptcies offer several other takeaways. First, speed and creditor consensus are not substitutes for a robust strategy. Spirit’s first plan was “broadly supported” and moved swiftly through confirmation. However, broad support for a plan that fails to address root causes of distress is not a measure of its soundness, but a measure of its convenience. A balance sheet-only fix prioritized speed of recovery over long-term durability, and the result was a plan that left Spirit unprepared for the competitive environment it re-entered.
Second, the Spirit case study illustrates the danger of emerging from bankruptcy with significant ongoing exposure to risks outside management’s control. Spirit exited its first case with a fleet still dependent on engines plagued by known manufacturing defects. The airline was still tethered to dozens of aircraft leases with counterparties like AerCap who held enormous leverage. And it was still reliant on credit card processors whose collateral demands could, and did, become a serious liquidity threat. A restructuring plan that does not mitigate or otherwise hedge against foreseeable risks is a plan built on optimism.
Third, Spirit’s collapse illustrates the compounding cost of deferred restructuring. The operational reforms that Spirit pursued in the second case—fleet rightsizing, labor renegotiation, lease rejection—may have been available during the first.
While these measures would have been costly and painful to undertake during the first restructuring, had they been implemented then, Spirit would have emerged with lower fixed costs and greater flexibility to absorb the revenue shocks that followed. Instead, the airline spent its post-emergence months burning cash at unsustainable rates, only to pursue those same reforms from a dramatically weaker position.
Finally, Spirit’s story is a cautionary tale about the limits of financial engineering in capital-intensive, operationally complex industries. While pieces of the story of Spirit’s failure may be specific to the airline industry, the general premise has universal applications.
No amount of debt-for-equity conversion or exit note issuance can substitute for a viable business model, a competitive cost structure, and operations to match actual demand is applicable to any company experiencing distress at a fundamental level.
Finally, Spirit’s story is a cautionary tale about the limits of financial engineering in capital-intensive, operationally complex industries. While pieces of the story of Spirit’s failure may be specific to the airline industry, the general premise has universal applications.
No amount of debt-for-equity conversion or exit note issuance can substitute for a viable business model, a competitive cost structure, and operations to match actual demand is applicable to any company experiencing distress at a fundamental level.
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