For those traveling with Frontier Airlines, the frontier terminal ontario in Ontario, California, offers a smooth and efficient travel experience. Located at Ontario International Airport, this terminal is dedicated to providing convenience and ease for all passengers. From fast check-ins to easy access to gates, the terminal ensures that your journey with Frontier Airlines starts off hassle-free. Whether you're flying for business or pleasure, the friendly atmosphere and streamlined services make this terminal a great choice for your next trip.