Passengers travelling in Economy class on China Eastern Baggage policy are typically permitted to bring one piece of carry-on luggage, maximum in size at 55 x 40 x 20 cm and no more than 5 kilogrammes in weight. There may be greater allowances for first-class and business travellers. Travellers should check the airline's official website or get in touch with customer care to find the most current information on carry-on size limitations, as the restrictions may change depending on the route and type of ticket. Passengers can avoid any inconvenience during security inspections and ensure a smooth boarding experience by adhering to these instructions.