If Chicago ever cares to get it right, they might want to check out the BART from downtown San Francisco to the airport. The terminus is a 60 second walk to the entrance to International G Concourse, where we fly out of tonight.
All of 30 minutes from downtown for $9.65.
Over the Hill & Far Away 
Ooooooo…terminus….you must write for a living… ; )
Have a great flight and a safe trip. Looking forward to the postings.
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