It was a great experience flying with Frontier Airlines SFO Terminal Quick and simple, the self-service kiosks made the check-in procedure go more smoothly. Both families and lone travelers found the well-organized security to be stress-free. The delay was made pleasant by the terminal's abundance of seating, food options, and charging outlets. The crew was kind and professional, and boarding went smoothly. For travelers looking for a smooth, economical journey, Frontier Airlines at San Francisco International Airport offers reasonable tickets and a relaxing in-flight experience. It was a great experience flying with Frontier Airlines SFO Terminal Quick and simple, the self-service kiosks made the check-in procedure go more smoothly. Both families and lone travelers found the well-organized security to be stress-free. The delay was made pleasant by the terminal's abundance of seating, food options, and charging outlets. The crew was kind and professional, and boarding went smoothly. For travelers looking for a smooth, economical journey, Frontier Airlines at San Francisco International Airport offers reasonable tickets and a relaxing in-flight experience.