UA 3875 then UA 1852 at San Francisco
IAB → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
01:46UA 3875 from IAB at the gate
23:59UA 1852 to Dallas-Fort Worth leaves the gatealso AC 4206, VA 8565, NZ 9081
22 h 13 apart on the timetable
UA 1852 leaves 22 h 13 after UA 3875 arrives on the timetable: more than half a day, so not a connection we count.