Southwest Airlines has the highest listed maximum weight for carry-on luggage at 50 pounds. Most airlines, however, do not specify weight limits and instead choose to set restrictions for carry on luggage according to size.Continue Reading
U.S. Airways, Frontier Airlines, Hawaiian Airlines and Allegiant Air are the other companies with available maximum-weight restrictions for carry-on luggage, which range from 25 to 40 pounds.
All airlines specify size restrictions for luggage. There are two basic sizes for carry-on luggage: 24 inches long by 16 inches wide by 10 inches high; and 22 inches long by 14 inches wide by 9 inches high.Learn more about Geography