Who Killed Spirit Airlines?

Then came rising costs.

Fuel prices surged, labor expenses climbed, aircraft maintenance became more expensive, and supply chain disruptions hurt airline operations across the industry. Spirit was hit especially hard because low-cost carriers depend on razor-thin profit margins. Reuters reported that higher jet fuel costs and weak domestic demand severely damaged the company’s finances.

The airline also faced operational setbacks tied to Pratt & Whitney engine recalls, which grounded parts of its fleet and disrupted schedules.

Spirit filed for bankruptcy multiple times as executives attempted to restructure debt and cut costs. Yet critics argued the company never made aggressive enough changes during its first bankruptcy process. Analysts told CNBC the airline avoided tougher restructuring decisions that may have improved long-term survival odds.

Online, reactions have been divided. Some blamed regulators for blocking mergers. Others blamed Spirit leadership for poor strategy and excessive debt. On Reddit and social media, aviation enthusiasts argued that the airline was likely doomed regardless of political decisions because of deeper structural problems in the ultra-low-cost airline industry.

In the end, Spirit Airlines may have been brought down by a perfect storm: failed mergers, rising costs, heavy debt, operational issues, and an airline market that had changed faster than the company could adapt.

Its disappearance also raises a larger question for the future of air travel: can ultra-budget airlines still survive in a world of rising costs and increasingly demanding passengers?