Spirit Airlines Inc (NYSE:SAVE) shares fell by 5.25% after the company reported Q2 results. The company's earnings per share of 29 cents fell short of the analyst consensus estimate by 23.68%. Quarterly sales were $1.43 billion, slightly missing the analyst consensus estimate by 2.55%. Despite these misses, the company showed significant improvement compared to the same period last year. However, Spirit faced challenges with productivity due to pilot constraints and NEO engine availability issues, resulting in a disappointing operating margin for Q2 2023.