WN 3723 then AA 2720 at Phoenix
San Diego → Phoenix → Chicago O'Hare
Timetable, Phoenix time
16:45WN 3723 from San Diego at the gate
11:27AA 2720 to Chicago O'Hare leaves the gate
18 h 42 apart on the timetable, overnight
AA 2720 leaves 18 h 42 after WN 3723 arrives on the timetable: more than half a day, so not a connection we count.