UA 2795 then WN 270 at Phoenix
Chicago O'Hare → Phoenix → San Diego
Timetable, Phoenix time
10:17UA 2795 from Chicago O'Hare at the gate
10:10WN 270 to San Diego leaves the gate
23 h 53 apart on the timetable, overnight
WN 270 leaves 23 h 53 after UA 2795 arrives on the timetable: more than half a day, so not a connection we count.