UA 2106 then QF 4864 at San Francisco
Chicago O'Hare → San Francisco → Phoenix
Timetable, San Francisco time
00:53UA 2106 from Chicago O'Hare at the gatealso AC 4373, VA 8090, LH 8778, NZ 9329
19:05QF 4864 to Phoenix leaves the gate
18 h 12 apart on the timetable
QF 4864 leaves 18 h 12 after UA 2106 arrives on the timetable: more than half a day, so not a connection we count.