航班截载时间指旅客须在航班计划起飞前完成值机、行李托运等手续办理的截止时间。此前，东上航（东方航空与上海航空）航班在首都机场的国内航班 人工柜台值机截载时间，由起飞前40分钟缩短至30分钟；在大兴机场，东上航国内航班人工柜台值机截载时间，由起飞前40分钟缩短至35分钟。 缩短截载时间背后藏着哪些真相？ 相关信息显示，近期以来，为了给旅客提供更充裕的值机办理时间，除了部分航司缩短值机截载时间外，虹桥国际机场、湛江吴川国际机场、徐州观音国 际机场、盐城南洋国际机场、扬州泰州国际机场、成都双流国际机场、济宁大安机场、昌北国际机场等多个机场也将国内航班截载时间调整为起飞前20— 35分钟不等。 随着多家机场和航司实施缩短航班截载时间的措施，进一步提升航空旅客出行的便捷度已成为业内共识。 "缩短截载时间提高了公众出行效率，因为原来普遍是提前40分钟左右就要截载，人们至少要提前两小时或者一个半小时到达机场，然后办理行李托运、 过安检等，航司缩短截载时间后，如果不托运行李，那就能够晚点抵达机场，节约了一部分时间。"资深民航专家张宝鑫对观察者网表示。 张宝鑫说，在目前我国的出行交通中，高铁已经成为人们的普遍选择，这在很大程度 ...

Group 1 - The core point of the article is the introduction of a new boarding policy by China Southern Airlines, allowing passengers to board flights with only 15 minutes before departure, significantly reducing the traditional check-in time requirement [1][3] - This new service, named "Instant Boarding," is a first in the domestic civil aviation industry, breaking the common practice of closing check-in counters 30 to 40 minutes before flight departure [3][5] - The policy aims to provide convenience for travelers with sudden travel needs, such as last-minute changes or frequent business trips, thereby enhancing the overall travel experience [3][5] Group 2 - For passengers with checked luggage, the check-in time remains 30 minutes before departure, with options for luggage delivery services available [5] - The initiative has sparked discussions on social media, with many users expressing support and suggesting that it should be implemented at more airports [5][7] - The civil aviation industry is currently in a recovery phase, with major airlines reporting significant reductions in losses, indicating a competitive environment against other transportation modes like high-speed rail [7][9] Group 3 - Other airports and airlines are also beginning to shorten their check-in times, reflecting a broader industry trend towards improving travel convenience [7][9] - Recent announcements from various airports have indicated a shift in check-in cut-off times, with some reducing it from 40 minutes to as little as 30 minutes before departure [9]