Cunard offers interline travel discounts on select sailings to A.B.Sea customers who are currently employed with a domestic or international commercial passenger airline. The spouse, children, parents and parents-in-law of an interline eligible guest may book one stateroom if the interline eligible guest is not traveling. Retired airline employees are also eligible provided the airline is still in operation (e.g. retired employees of Eastern Airline do not qualify). Cargo Pilots and Flight Crew of DHL, FedEx and UPS also qualify. Qualifying interline personnel must email a copy of their company photo ID to A.B.Sea at the time of booking. Cunard will charge guests the standard market rate if they do not receive proper documentation within 48 hours of booking.