WN 3723 then DL 2123 at Phoenix
San Diego → Phoenix → Atlanta
Timetable, Phoenix time
16:45WN 3723 from San Diego at the gate
13:43DL 2123 to Atlanta leaves the gate
20 h 58 apart on the timetable, overnight
DL 2123 leaves 20 h 58 after WN 3723 arrives on the timetable: more than half a day, so not a connection we count.