Much the same could be said for the LGA lounge. Does SFO sometimes close off a section of the lounge for events? This week again during a visit of mine, the LGA lounge had a closed off section when the lounge was definitely too crowded for a couple to find anywhere to sit together — even too crowded for a single passenger to find a place to sit unless intruding upon an already occupied table/seat/seat bench/sofa. Nice otherwise, but I found the United Club (and probably also the separate Air Canada) lounge to be less crowded and more relaxing than the LGA Centurion lounge — and UC is where I went soon after snacking at the Centurion lounge.