WN 1755 then AA 3996 at Phoenix
Denver → Phoenix → Tucson
Timetable, Phoenix time
13:45WN 1755 from Denver at the gate
13:22AA 3996 to Tucson leaves the gate
23 h 37 apart on the timetable, overnight
AA 3996 leaves 23 h 37 after WN 1755 arrives on the timetable: more than half a day, so not a connection we count.