Thumb Score: +9 works both ways! Both United and American Airlines have round trip airfares travelling to and from Pittsburgh PA (PIT) and San Francisco (SFO) for $128-$133, making 1 stop. These are basic economy fares, a restricted-type fare. Travel Availaibllity:[INDENT]Departs SFO: Sept 7, 10, 17, 21, 24, 28; Oct 1, 8, 19, 22, 26, 29; Nov 3, 9 Returns: Sept 10-11, 14, 17-18, 21, 24=25, 28; Oct 1-2, 5, 8, 12, 15-16, 12-22, 26, 29-30; Nov 9, 12-13, 16, 19-20 Departs PIT: Sept 7, 14, 17, 21, 24; Oct 5, 12, 15, 26, 29; Nov 9