UA 2661 then ET 1359 at San Francisco
Philadelphia → San Francisco → Washington
Timetable, San Francisco time
09:22UA 2661 from Philadelphia at the gatealso NH 7021, CA 7299, VA 8451, NZ 9365
22:55ET 1359 to Washington leaves the gate
13 h 33 apart on the timetable
ET 1359 leaves 13 h 33 after UA 2661 arrives on the timetable: more than half a day, so not a connection we count.