AC 4155 then QR 2091 at San Francisco
Tucson → San Francisco → Santa Ana
Timetable, San Francisco time
11:06AC 4155 from Tucson at the gatealso UA 4683, EK 6410, LH 9293, NZ 9744
09:00QR 2091 to Santa Ana leaves the gate
21 h 54 apart on the timetable, overnight
QR 2091 leaves 21 h 54 after AC 4155 arrives on the timetable: more than half a day, so not a connection we count.