UA 1341 then UA 1230 at San Francisco
Detroit → San Francisco → Denver
Timetable, San Francisco time
19:31UA 1341 from Detroit at the gatealso OZ 9538
14:24UA 1230 to Denver leaves the gatealso AC 5070, CA 7308, NH 7320, VA 8339, NZ 9050
18 h 53 apart on the timetable, overnight
UA 1230 leaves 18 h 53 after UA 1341 arrives on the timetable: more than half a day, so not a connection we count.