The ontario airport frontier terminal is located at Terminal 2 of Ontario International Airport, where Frontier Airlines operates its flights. This terminal provides a convenient and efficient experience for travelers, with easy check-in counters, streamlined security screening, and clear signage throughout. Passengers using the ontario airport frontier terminal can access a range of amenities, including dining options, retail shops, and comfortable waiting areas. With organized boarding processes and modern facilities, the ontario airport frontier terminal ensures a smooth and hassle-free journey for both business and leisure travelers.