Asiana Airlines requires pet carriage to be booked 24 hours before domestic departures or 48 hours before international departures, explicitly on a business-day basis. Without an approved booking, the airline will not accept the pet in the cabin or as checked carriage. Dogs, cats and pet birds are eligible; cabin carriage is limited to 7kg including the carrier. A standard carrier must be within 21cm height, 32cm width and 45cm depth. Soft carriers can be up to 26cm tall if compressible to 21cm. Normally one cabin pet per adult passenger is allowed, while children cannot apply to transport pets. A pet-designated seat may be required. Confirm the airline's final approval, route-specific limits and destination quarantine rules before travel.