(1) I will arrive SFO from DFW on American around 7pm and have 6+ hours until CX873 departs at 120am. Should I take a cab into the city and grab dinner or perhaps hang out in the airport and CX J lounge prior to the flight?
Remember that the BART from SFO to Downtown is now working and takes only 30 minutes and costs just $5.15. It is very predictable and you can look at the schedules online. I would think the best stop would be Powell Station where the cable car turnstile is. Not sure how much you could do since the cable car to Fisherman's Wharf will take 20 - 30 minutes unless there is a long line.