UA 3772 then UA 1995 at San Francisco
Colorado Springs → San Francisco → Las Vegas
Timetable, San Francisco time
23:55UA 3772 from Colorado Springs at the gate
19:00UA 1995 to Las Vegas leaves the gatealso AC 3942, AZ 4490, VA 8117, NZ 9220, LH 9228
19 h 05 apart on the timetable, overnight
UA 1995 leaves 19 h 05 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.