Southwest has a liberal carry-on policy, which is why passengers love flying with Southwest. The typical Southwest carry-on size restriction is 10 x 16 x 24 inches, including wheels and handles. One carry-on bag and one personal item, such as a backpack, purse, or laptop bag, are permitted for passengers. Southwest's carry-on policy makes traveling easier by reducing additional charges and offering more flexibility. It is wise to check your bag size prior to going to the airport to prevent inconvenience. Selecting a carry-on within the size restrictions of Southwest guarantees ease at boarding and instant access to personal items on board.