Baggage allowances are determined by airlines and will depend on factors such as fare paid, class, route, aircraft type, government regulations, and the airline's own company, commercial and health and safety policies.
Airlines will generally set a "free baggage allowance" which is determined by size and weight. For items which exceed the airline size limits, your airline may charge you extra to process your bags. Travellers are advised to check baggage allowances with their airline when booking their ticket to avoid confusion or complications at the airport.
Baggage handling and delivery is the responsibility of the airline from the point of check-in to the point of collection. If anything is left or lost on board an aircraft, please contact the airline immediately.
Some airlines provide a replacement service for baggage which has been damaged in transit. For details please contact the relevant airline directly.