Frontier Airlines operates out of Terminal 1 at San Francisco International Airport (SFO). This terminal is equipped with a variety of amenities, including dining options, retail shops, and comfortable seating areas. Frontier Airlines’ check-in counters and self-service kiosks are located within Terminal 1, making it easy to handle ticketing and baggage services. The terminal is designed for efficient passenger flow with clear signage and helpful staff to assist travelers. Additionally, Terminal 1 offers various services to enhance your travel experience. To ensure a smooth departure, it’s advisable to arrive early to complete check-in, navigate security, and reach your gate on time.