The data of Potential carbon emissions reduction from fleet schedule reconfiguration of China’s and India’s external routes

The data sources and specific steps for data collection are in Table S1. The CCD and LTO carbon emissions of each route and airline are shown in Tables S2 (China-foreign routes) and S3 (India-foreign routes). The specific calculation steps of carbon emission intensity are listed in Table S4. Finally, the carbon emission intensities of each aircraft type can be found in Tables S5 (China-foreign routes) and S6 (India-foreign routes).