Gypsophila flowers hold significant economic value in the floriculture sector, used in cut flowers, decorations, and potted plants. Their lifespan is crucial for assessing quality, market value, and customer satisfaction. In the 2022 and 2023 growing seasons, this study was conducted in the Laboratory of Postharvest and Handling of Manufacturing Engineering and Food Packaging Res. Dept., Food Technology, Res. Inst., ARC at Giza and Post-Harvest Lab. of Ornamental Plants and Landscape Gardening Research Dept., Hort. Res. Inst.; Giza, Egypt to investigate the impacts of active and passive modified atmosphere packaging (MAP) on several aspects of postharvest quality such as longevity, water loss, and water uptake on the quality characteristics of cut Gypsophila paniculata L. ‘Bristol Fairy’ flowers during storage. The following compositions of gases were examined: passive-MAP (78.97 N2, 0.03 CO2, and 21% O2), MAP1 (90 N2, 5 CO2, and 5% O2), MAP2 (85 N2, 10 CO2, and 5% O2), MAP3 (80 N2, 15 CO2, and 5% O2) and control (Unpacked cut flowers). The findings demonstrated that MAP2 and polyethylene bags significantly enhanced water absorption, fresh weight, carbohydrates production, and appearance quality. The average storage life of gypsophila flowers under passive MAP was 19.07 days, with the longest being 29.42 days with MAP2 and polyethylene bags.