<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> Southwest Airlines operates from Terminal 4 at Ontario International Airport (ONT), in Ontario, California. <a href="https://allairportsterminals.com/southwest-airlines/southwest-airlines-ont-terminal-ontario-international-airport/">Southwest Airlines ONT Terminal</a> provides a smooth and efficient travel experience, with Southwest aircraft connecting passengers to a variety of locations around the United States. Terminal 4 is outfitted with modern amenities such as dining options, shops, and comfy seating areas, offering a pleasant travel experience for passengers. Southwest Airlines, known for its pleasant service and low costs, is a popular alternative for both leisure and business visitors flying into and out of the Inland Empire region via ONT's convenient and well-designed facilities.