Southwest Airlines ONT Terminal welcomes travelers to Ontario International Airport. The terminal is built for ease, with rapid check-in and boarding processes. Passengers can relax and enjoy their time before their flights by choosing from a choice of restaurants and shopping alternatives. Southwest's courteous team is dedicated to giving guidance and support, making each journey a pleasurable experience. Whether you're traveling for business or pleasure, the terminal strives to make your journey smooth and enjoyable from start to finish.