Some international airline luggage sizes differ from U.S. carriers in pound and piece restrictions. The average general luggage size and weight for checked bags on international flights is 62 inches long, with a weight of 50 pounds, as of 2016. The average maximum size of carry-on bags is 45 inches. Typically, consumers use international carry-on bags on overseas flights that are 18 to 20 inches in size.
Measure luggage is by adding the width, height and length, including the wheels and handles. Consumers should always check with their individual airlines for the most current restrictions and policies.
The most common size for U.S. carry-on luggage is 21 to 22 inches for domestic flights. Most airlines impose restrictions of 45 linear inches or 22 x 14 x 9 inches. For checked bags, most U.S. flights have a weight restriction of 50 pounds. The most common size of checked luggage is 25 to 27 inches. Bags that are larger, such as a 28 to 32-inch suitcase, may exceed the 50-pound weight restriction enforced by U.S. domestic flights.
Consumers can use wheeled totes as a small, wheeled bag that they can carry on to a plane and easily fit under a seat. Totes are also small enough to lift and fit into overhead storage compartments.