No, luggage is considered baggage by an airline - cargo is all the other stuff they cart (animals sometimes, boxes and packages etc). All airlines can lose luggage - US Airways lost my parents luggage between a change in flight they had in Philly and Reagan National - that flight is only about 30 minutes long - how do you lose bags in that space of time? They put them on a plane to Chicago by mistake - no idea how since the airline codes for those 2 airports are not even similar. Want a great airline to fly on? Virgin Atlantic - fantastic staff, friendly, great seats, about as nice a flight as being in coach for 7 hours could be!