Its in international terminal G. Pass security take right there is small passage which takes you to all airline lounges. Its 5 min walk to lounge.
It's right by gate 74.
That small passage that my comment below was saying may seem to look like its taking you to some unknown part of the airport...but keep going , once out the doors you cant miss it.
The lounge is actually in terminal 3.
I am not too familiar with SFO, but is directly after international security it will be on right...hard to miss. However it is NOT any better than others down the terminal. I like the self serve drinks in other lounges. Also better TV in other lounges. Terminal 3 next to gates 75 and 74. You will be sorry...just go to an airline lounge for good food etc.
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