SHANGHAI--(BUSINESS WIRE)--China Eastern Airlines (CEAir), together with its subsidiary Shanghai Airlines, announced an expansion of its in-flight connectivity service, extending complimentary Wi-Fi to all passengers on all wide-body aircraft starting from July 3. The move, as part of the airline's ongoing efforts to improve service quality and enhance passenger experience through technological innovation, marks a major milestone in the development of in-flight connectivity in China's civil avi