On average, an empty softside carry-on weighs 6.55 lbs (2.97 kg) On average, an empty hardside carry-on weighs 7.11 lbs (3.23 kg) The lightest carry-ons weigh between 3.75-5 lbs (1.7-2.3 kg) The lightest luggage materials are polyester, nylon, and polypropylene Spinner suitcases weigh ...