Spirit Airlines, a low-cost carrier based in the United States, has officially ceased operations following a series of financial troubles, including two bankruptcy filings in 2024 and 2025. The airline attributed its shutdown to a recent surge in jet fuel prices, which it linked to the ongoing conflict in Iran. However, US Transportation Secretary Sean Duffy refuted this claim, stating that Spirit's financial issues were evident long before the conflict began. Spirit's President and CEO Dave Davis expressed disappointment, noting that sustaining operations required hundreds of millions of dollars that the airline could not secure. Analysts estimate that the spike in fuel prices could have added as much as $360 million to Spirit's costs this year. The airline's struggles were compounded by competition from larger carriers that offered more attractive fare bundles and loyalty programs. The aviation industry as a whole is feeling the strain of rising fuel prices, with many smaller airlines reevaluating their routes and operations.