Southwest Airlines ONT Terminal offers a seamless travel experience with convenient check-in, boarding, and quick access to baggage claim. Located in Terminal 4, Southwest provides both domestic and select international flights. Passengers enjoy modern amenities, including free Wi-Fi, comfortable seating areas, and dining options. The airline’s efficient processes make traveling stress-free, with multiple daily departures to popular destinations. Whether you’re flying for business or leisure, Southwest Airlines at ONT ensures a smooth journey from start to finish. Arrive early to take advantage of all services, and experience top-notch customer service every time.