Starting from July 24th, China Eastern Airlines and Shanghai Airlines will launch the "Pearl River Delta Regional Connect" product. This is the third "economic circle" launched by China Eastern Airlines since the launch of the innovative service product of "using new to get old" for air tickets, which is particularly friendly to business travelers' air travel. For example, Ms. Huang, a passenger, purchased a flight from Guangzhou to Beijing Daxing Airport on July 25th. However, due to work reasons, the departure from Shenzhen on July 24th needs to be postponed by one day. She can purchase a new ticket from Shenzhen to Beijing Daxing on July 26th and cancel the original flight itinerary reservation on July 24th. On July 26th, after arriving in Beijing with a new flight ticket, she applied for a refund for the previously purchased Guangzhou to Beijing Daxing flight on July 25th. She selected the "Regional Pass" option on the reason for the refund and indicated the ticket number starting with "781" for her newly purchased Shenzhen Beijing Daxing flight. This will entitle her to the policy of "using a new ticket, full refund of the original ticket". Qualified civil aviation airports in the Pearl River Delta region include Guangzhou Baiyun International Airport, Shenzhen Bao'an International Airport, Zhuhai Jinwan Airport, Jieyang Chaoshan International Airport, Zhanjiang Wuchuan International Airport, Huizhou Pingtan Airport, and other airports. After purchasing a domestic one-way flight ticket (hereinafter referred to as the "original ticket") operated by China Eastern Airlines or Shanghai Airlines and originating or arriving at an airport within the Pearl River Delta region, if there is a need to change the airport within the Pearl River Delta region, passengers can use the same documents to purchase a new domestic one-way flight ticket (hereinafter referred to as the "new ticket") from another Pearl River Delta region airport to the same destination or from the same origin to another Pearl River Delta region airport on the same day or one day before or after the original flight is scheduled to depart, and the original ticket can be fully refunded after the travel is completed. The original ticket is limited to one domestic flight segment per ticket and does not include tickets that cannot be refunded (the ticket endorsement column indicates "non refundable", "non refundable", "NONRFD", etc.). Previously, China Eastern Airlines and Shanghai Airlines had launched the Yangtze River Delta Regional Connect and Sichuan Chongqing Regional Connect products. The Yangtze River Delta region covers all airports in Shanghai, Jiangsu, Zhejiang, and Anhui provinces and cities; The Sichuan Chongqing regional connectivity covers all airports in Sichuan and Chongqing. It is worth noting that products from different regions cannot be used simultaneously. For example, on the Guangzhou Shanghai route, when both the Pearl River Delta and Yangtze River Delta regional routes are applicable, only one of the two options can be used for route changes. (New Society)