Southwest Airlines operates from Terminal 4 at Ontario International Airport (ONT), in Ontario, California.
Southwest Airlines ONT Terminal 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.
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