VA 8576 then UA 604 at San Francisco
Las Vegas → San Francisco → Houston
Timetable, San Francisco time
11:32VA 8576 from Las Vegas at the gate
00:45UA 604 to Houston leaves the gatealso EK 6013
13 h 13 apart on the timetable, overnight
UA 604 leaves 13 h 13 after VA 8576 arrives on the timetable: more than half a day, so not a connection we count.