UA 2492 then ET 1359 at San Francisco
Los Angeles → San Francisco → Washington
Timetable, San Francisco time
07:30UA 2492 from Los Angeles at the gatealso NH 7357, VA 8059
22:55ET 1359 to Washington leaves the gate
15 h 25 apart on the timetable
ET 1359 leaves 15 h 25 after UA 2492 arrives on the timetable: more than half a day, so not a connection we count.