WN 3723 then UA 1842 at Phoenix
San Diego → Phoenix → Chicago O'Hare
Timetable, Phoenix time
20:55WN 3723 from San Diego at the gate
13:53UA 1842 to Chicago O'Hare leaves the gate
16 h 58 apart on the timetable, overnight
UA 1842 leaves 16 h 58 after WN 3723 arrives on the timetable: more than half a day, so not a connection we count.