What is the maximum size of carry on luggage for southwest airlines?

The maximum dimensions for carry on luggage on Southwest Airlines are 10 x 16 x 24 inches, including handles and wheels. Additionally, Southwest allows one personal item per passenger, such as a purse, briefcase, or laptop bag, as long as it fits under the seat in front of you. Carry on luggage must also adhere to the weight limit of 50 pounds. It is always best to check with the airline directly or visit their website for the most up-to-date information on baggage requirements.