T2 was the original terminal, later central terminal, at SFO
, it at one time (prior to T3
being built in the late 70's) had three concourses, two occupied by United, and the other by PSA, Hughes Airwest, National and Northwest Orient. The international concourse then was the rotunda deal in T1 currently occupied by US and Midwest. The rotunda is oddly matched to the rest of the concourse, as it was the first step in a cxld remodel job on the entire airport in the very early 70's, that would have seen more of the same type of rotundas built in all three terminals.
I have heard in a post on this site that US is consolidating in the old HP
gates in T1 after the holidays, and that Midwest will move too, and that concourse will be torn down finally, so that the international terminal will operate at full tilt as designed. I also believe the former customs and immigration facilities in T2
are gone, or will be gone, replaced by domestic luggage claim facilities. Another possibility for that space would be to consolidate NW
there for Sky Team, and move AA
into the DL
/NW space (where they once had a concourse prior to the opening of the T3
or what was then called the north terminal).
, however, anything is possible when it comes to terminal facilities...