Flying Everything to know about Southwest carry-on size policy 6 min read Southwest, the largest domestic carrier in the US, is known for its generous baggage policies: two free checked bags per passenger. Its carry-on policies, meanwhile, are standard: one larger suitcase and a personal item. Here’s what to know about Southwest carry-on size for your next flight. Southwest Airlines carry-on size: An overview All Southwest passengers are allowed one bag that goes in the overhead bin and a smaller item that fits under the seat in front of them. The larger bag size limit is 24 x 16 x 10 total inches , including wheels, handles, and attachments. Southwest does not specify a weight limit. Southwest carry-on bag size for personal items Southwest currently does not specify size dimensions for personal items on its website.   However, a personal item must fit in the space under the seat in front of you. Items include handbags, cross-body bags, briefcases, and small backpacks.…