AA 6254 then WN 4146 at Phoenix
Durango → Phoenix → Chicago Midway
Timetable, Phoenix time
13:49AA 6254 from Durango at the gate
10:05WN 4146 to Chicago Midway leaves the gate
20 h 16 apart on the timetable, overnight
WN 4146 leaves 20 h 16 after AA 6254 arrives on the timetable: more than half a day, so not a connection we count.