【广州白云机场航班大面积延误】5月23日讯，截至5月23日15:50，据飞常准APP显示，受恶劣天气影响，当前广州白云机场大面积延误，已延误进出港航班超400架次，进港备降航班17架次，主要备降地为深圳宝安机场、珠海金湾机场、南昌昌北机场、长沙黄花机场、揭阳潮汕机场等地。

Core Viewpoint - Guangzhou Baiyun Airport is experiencing significant flight delays due to adverse weather conditions, affecting over 400 flights as of May 23, 15:50 [1] Group 1: Flight Delays - More than 400 flights have been delayed at Guangzhou Baiyun Airport, impacting both arrivals and departures [1] - 17 inbound flights have been diverted to alternative airports, including Shenzhen Bao'an Airport, Zhuhai Jinwan Airport, Nanchang Changbei Airport, Changsha Huanghua Airport, and Jieyang Chaoshan Airport [1]