WN 452 then WN 971 at Phoenix
Baltimore → Phoenix → Tucson
Timetable, Phoenix time
13:10WN 452 from Baltimore at the gate
12:35WN 971 to Tucson leaves the gate
23 h 25 apart on the timetable, overnight
WN 971 leaves 23 h 25 after WN 452 arrives on the timetable: more than half a day, so not a connection we count.