Originally Posted by
akdancer
The international terminal at SFO has gates "A" or "G". No "I" gates there. Terminals at SFO are numbered 1-3, though I don't think Int'l Terminal has a number. AS needs to do more about putting a terminal ID on all references to gates at SFO.
The terminal ID for GDS and airline systems is "I" for all international terminal gates (even though there are no "I" gates). Every pier has an associated letter, but only A and G have them as part of the gate designation. It is easy to understand someone's confusion by seeing an "I" on an itinerary.