There is indeed only one international terminal, divided into A side and G side. However, there is no "terminal A" or "terminal G". I understand your response--the map is correct until it calls A and G 'terminals'. How I wish it were correct! And for what it's worth, there's nothing at the airport reading "terminal I" either--it's only on the travel papers that passengers show me. Also fwiw, I've been doing this for 14 years. SFO finished the 'new' international terminal ~2000, and this "terminal I" stuff still comes at me weekly.