NEW YORK – Just months after emerging from Chapter 11 bankruptcy, Spirit Airlines is warning about its future ability to stay in business.

Spirit Aviation Holdings, the parent company of the budget airline, has expressed “substantial doubt” about its ability to remain operational over the next year. This phrase is used in accounting to reflect concerns about having the necessary resources to maintain operations. According to a quarterly report released on Monday, Spirit cited “adverse market conditions” that persist even after recent restructuring and efforts to improve its services.

This situation includes a continued lack of strong demand for domestic leisure travel, which Spirit noted persisted into the second quarter of its fiscal year. The Florida-based company anticipates facing these challenges and “uncertainties in its business operations” for “at least the remainder of 2025.”

Renowned for offering budget-friendly, no-frills flights on its signature bright yellow aircraft, Spirit has struggled to regain profitability and enhance its resources to compete with other airlines since the COVID-19 pandemic. Increasing operational costs and escalating debt led to the company seeking bankruptcy protection in November. At the point of filing for Chapter 11, the airline had suffered losses exceeding $2.5 billion since 2020 began.

Spirit emerged from bankruptcy protection in March, having successfully restructured parts of its debt obligations and obtained new funding for its future endeavors. The airline has continued to implement further cost-reduction strategies — including plans to furlough around 270 pilots and reassign approximately 140 captains to first officer positions in the upcoming months.

The announced furloughs and downgrades, scheduled to take effect on Oct. 1 and Nov. 1, are in line with Spirit’s anticipated flight levels for 2026, as mentioned in its quarterly report. These measures come after previous furloughs and job cuts enacted prior to the company’s bankruptcy last year.

Despite these initiatives and other cost-reducing measures, Spirit emphasized on Monday that it needs to boost its liquidity. Consequently, the company suggested that it might consider selling specific aircraft and real estate assets.

Spirit’s aircraft fleet is relatively young, which has made the airline an attractive takeover target over the years. But such buyout attempts from budget rivals like JetBlue and Frontier were unsuccessful both before and during the bankruptcy process.

Spirit’s shares tumbled more than 40% Tuesday morning, with the company’s stock trading at just over $1.80 as of around 11 a.m. ET.