Frontier Airlines at San Diego International Airport (SAN). Situated in Terminal 1, Frontier offers convenient access to boarding gates, security, and ticketing, guaranteeing a seamless travel experience for both leisure and business visitors. All passengers' needs are met by the terminal's basic amenities, which include dining options, retail stores, and cozy seating places. https://airportsterminalguides.com/frontier-airlines/frontier-airlines-san-terminal-san-diego-international-airport/