Southwest Airlines ONT Terminal provides a more efficient travel experience for passengers at Ontario International Airport. The terminal's modern facilities include a choice of food and retail options to help you enjoy your travel. Travelers can benefit from speedy check-in operations and courteous customer service experts who are eager to assist. Southwest Airlines is known for its inviting atmosphere and focuses on customer satisfaction, making it an excellent choice for both business and leisure travelers. The Southwest terminal of ONT provides convenience and comfort.